Search

Abstract Context Both the aging of the population and the increase in noncommunicable diseases may influence the progression and outcomes culminating in death, changing the evolution of ischemic heart diseases (IHDs) and their associated causes. Using the multiple causes of death method could help understand the magnitude of these relationships and enable better targeting of investments in health. Objectives To evaluate the mortality from IHD in Brazil between 2006 and 2020 using the method of multiple causes and identify differences in the distribution pattern of IHD mortality by sex and geographic region. Methods Based on information extracted from death certificates (DCs) obtained from the database of the Department of Informatics of the Unified Health System (DATASUS), we used the multiple causes method to analyze the causes of death associated with IHD when IHD was defined as the underlying cause of death (UC) and the causes of death listed as the UC when IHD was recorded in any other lines of the DC, from 2006 to 2020, in Brazil. Subsequently, the proportion of these causes of death and differences between sexes and geographic regions were evaluated, with statistical relevance analyzed using the chi-square test, and the dependence between factors illustrated using stacked bar charts and small-world network graphs. Results When IHD was listed as the UC of death, the most frequent associated causes of death were, in descending order of frequency, acute myocardial infarction (AMI), arterial hypertension (AH), chronic ischemic heart disease (CHID), heart failure (HF), and diabetes mellitus (DM). When IHD was mentioned in any line of the DC, the most frequent UCs of death were AMI followed by DM, CIHD, chronic obstructive pulmonary disease (COPD), stroke, dyslipidemia, and, in the year 2020, COVID-19. The most frequent cause of death in women were DM as the UC and associated cause of death, AH as the UC, and CIHD and Alzheimer's disease as associated causes of death, while the most frequent causes of death in men were substance dependence as the UC and associated cause of death, and cancer as an associated cause of death. The most frequent causes of death were DM and stroke in the North and Northeast, dyslipidemia and obesity in the Midwest, Alzheimer's disease in the South and Southeast, and atherosclerotic heart disease (AHD) and COPD in the South. Conclusions Several diseases – including AMI, AH, CIHD, HF, and DM – were the most frequent associated causes of death when IHD was recorded as the UC. In contrast, AMI, DM, CIHD, COPD, and stroke were the most frequent UCs when IHD was listed as an associated cause of death. The degree of these associations varied between sexes and geographic regions.

Context: Both the aging of the population and the increase in noncommunicable diseases may influence the progression and outcomes culminating in death, changing the evolution of ischemic heart diseases (IHDs) and their associated causes. Using the multiple causes of death method could help understand the magnitude of these relationships and enable better targeting of investments in health. Objectives: To evaluate the mortality from IHD in Brazil between 2006 and 2020 using the method of multiple causes and identify differences in the distribution pattern of IHD mortality by sex and geographic region. Methods: Based on information extracted from death certificates (DCs) obtained from the database of the Department of Informatics of the Unified Health System (DATASUS), we used the multiple causes method to analyze the causes of death associated with IHD when IHD was defined as the underlying cause of death (UC) and the causes of death listed as the UC when IHD was recorded in any other lines of the DC, from 2006 to 2020, in Brazil. Subsequently, the proportion of these causes of death and differences between sexes and geographic regions were evaluated, with statistical relevance analyzed using the chi-square test, and the dependence between factors illustrated using stacked bar charts and small-world network graphs. Results: When IHD was listed as the UC of death, the most frequent associated causes of death were, in descending order of frequency, acute myocardial infarction (AMI), arterial hypertension (AH), chronic ischemic heart disease (CHID), heart failure (HF), and diabetes mellitus (DM). When IHD was mentioned in any line of the DC, the most frequent UCs of death were AMI followed by DM, CIHD, chronic obstructive pulmonary disease (COPD), stroke, dyslipidemia, and, in the year 2020, COVID-19. The most frequent cause of death in women were DM as the UC and associated cause of death, AH as the UC, and CIHD and Alzheimer's disease as associated causes of death, while the most frequent causes of death in men were substance dependence as the UC and associated cause of death, and cancer as an associated cause of death. The most frequent causes of death were DM and stroke in the North and Northeast, dyslipidemia and obesity in the Midwest, Alzheimer's disease in the South and Southeast, and atherosclerotic heart disease (AHD) and COPD in the South. Conclusions: Several diseases – including AMI, AH, CIHD, HF, and DM – were the most frequent associated causes of death when IHD was recorded as the UC. In contrast, AMI, DM, CIHD, COPD, and stroke were the most frequent UCs when IHD was listed as an associated cause of death. The degree of these associations varied between sexes and geographic regions. [ABSTRACT FROM AUTHOR]

Abstract Background National mortality statistics are based on a single underlying cause of death. This practice does not adequately represent the impact of the range of conditions experienced in an ageing population in which multimorbidity is common. Methods We propose a new method for weighting the percentages of deaths attributed to different causes that takes account of the patterns of associations among underlying and contributing causes of death. It is driven by the data and unlike previously proposed methods does not rely on arbitrary choices of weights which can over-emphasise the contribution of some causes of death. The method is illustrated using Australian mortality data for people aged 60 years or more. Results Compared to the usual method based only on the underlying cause of death the new method attributes higher percentages of deaths to conditions like diabetes and dementia that are frequently mentioned as contributing causes of death, rather than underlying causes, and lower percentages to conditions to which they are closely related such as ischaemic heart disease and cerebrovascular disease. For some causes, notably cancers, which are usually recorded as underlying causes with few if any contributing causes the new method produces similar percentages to the usual method. These different patterns among groups of related conditions are not apparent if arbitrary weights are used. Conclusion The new method could be used by national statistical agencies to produce additional mortality tables to complement the current tables based only on underlying causes of death.

Abstract Background People with dermatomyositis (DM) or polymyositis (PM) often die from cancer, pulmonary, cardiac complications, or infections. In such cases, DM or PM might not be designated as the underlying cause of death (UCD) for mortality tabulation. In this study, we investigated DM/PM mortality trends in the USA from 1981 to 2020 with respect to UCD and multiple causes of death (MCD) data. Methods We used the MCD data to identify all deaths with DM or PM mentioned anywhere on the death certificate and as the UCD in the USA from 1981–1982 to 2019–2020. We calculated age-adjusted mortality rates (AAMRs) and annual percentage changes (APCs) based on joinpoint regression analysis. Results We identified 12,249 (3985 with DM and 7097 with PM) and 23,608 (8264 with DM and 15,344 with PM) people who died between 1981 and 2020 according to the UCD and MCD data, respectively. For DM, the APC was − 6.7% (from 1981–1982 to 1985–1986), − 0.1% (from 1985–1986 to 2003–2004), and − 1.9% (from 2003–2004 to 2019–2020) according UCD and was − 1.2% (from 1981–1982 to 2003–2004), − 2.5% (from 2003–2004 to 2015–2016), and 2.8% (from 2015–2016 to 2019–2020) according MCD. For PM, the APC was 1.9% (from 1981–1982 to 1989–1990), − 2.3% (from 1989–1990 to 2005–2006), and − 5.2% (from 2005–2006 to 2019–2020) according UCD and was 1.3% (from 1981–1982 to 1991–1992) and − 4.1% (from 1991–1992 to 2019–2020) according MCD. Conclusion We identified two times as many DM/PM deaths using the MCD as those identified using the UCD. Similar downward DM/PM mortality trends were noted according to UCD and MCD. However, the year of significant decline in PM mortality was about 10 years earlier according to MCD than those according to UCD.

Background: National mortality statistics are based on a single underlying cause of death. This practice does not adequately represent the impact of the range of conditions experienced in an ageing population in which multimorbidity is common. Methods: We propose a new method for weighting the percentages of deaths attributed to different causes that takes account of the patterns of associations among underlying and contributing causes of death. It is driven by the data and unlike previously proposed methods does not rely on arbitrary choices of weights which can over-emphasise the contribution of some causes of death. The method is illustrated using Australian mortality data for people aged 60 years or more. Results: Compared to the usual method based only on the underlying cause of death the new method attributes higher percentages of deaths to conditions like diabetes and dementia that are frequently mentioned as contributing causes of death, rather than underlying causes, and lower percentages to conditions to which they are closely related such as ischaemic heart disease and cerebrovascular disease. For some causes, notably cancers, which are usually recorded as underlying causes with few if any contributing causes the new method produces similar percentages to the usual method. These different patterns among groups of related conditions are not apparent if arbitrary weights are used. Conclusion: The new method could be used by national statistical agencies to produce additional mortality tables to complement the current tables based only on underlying causes of death. [ABSTRACT FROM AUTHOR]

Background Mortality statistics using a single underlying cause of death (UC) are key health indicators. Rising multimorbidity and chronic disease mean that deaths increasingly involve multiple conditions. However, additional causes reported on death certificates are rarely integrated into mortality indicators, partly due to complexities in data and methods. This study aimed to assess trends and patterns in cause-related mortality in Australia, integrating multiple causes (MC) of death. Methods Deaths (n  = 1 773 399) in Australia (2006–17) were mapped to 136 ICD-10-based groups and MC indicators applied. Age-standardized cause-related rates (deaths/100 000) based on the UC (ASRUC) were compared with rates based on any mention of the cause (ASRAM) using rate ratios (RR = ASRAM/ASRUC) and to rates based on weighting multiple contributing causes (ASRW). Results Deaths involved on average 3.4 causes in 2017; the percentage with >4 causes increased from 20.9 (2006) to 24.4 (2017). Ischaemic heart disease (ASRUC = 73.3, ASRAM = 135.8, ASRW = 63.5), dementia (ASRUC = 51.1, ASRAM = 98.1, ASRW = 52.1) and cerebrovascular diseases (ASRUC = 39.9, ASRAM = 76.7, ASRW = 33.5) ranked as leading causes by all methods. Causes with high RR included hypertension (ASRUC = 2.2, RR = 35.5), atrial fibrillation (ASRUC = 8.0, RR = 6.5) and diabetes (ASRUC = 18.5, RR = 3.5); the corresponding ASRW were 12.5, 12.6 and 24.0, respectively. Renal failure, atrial fibrillation and hypertension ranked among the 10 leading causes by ASRAM and ASRW but not by ASRUC. Practical considerations in working with MC data are discussed. Conclusions Despite the similarities in leading causes under the three methods, with integration of MC several preventable diseases emerged as leading causes. MC analyses offer a richer additional perspective for population health monitoring and policy development. [ABSTRACT FROM AUTHOR]

Cause-of-death diversity captures the variability of deaths across causes and is an important marker of heterogeneity in a population's health. We contribute to the debate of cause-of-death diversity dynamics by following a novel multiple causes of death (MCOD) approach and applying it to the U.S. context between 2003 and 2018 and across education groups. Results show that cause-of-death diversity increased over this period, especially up to 2012. These trends were mainly driven by increases in the groups aged 65 years or more. The inclusion of MCOD resulted in higher increases in cause-of-death diversity over time compared with merely using underlying causes of death, except for the 85 or more age group, where no difference was observed for males and a reverted gradient was observed for females. Results by educational attainment reveal lower diversity among the highest educated groups and widening differences across groups from around 2012 onward. The clear educational gradient observed at ages 30–64 diminished at older ages. The observed increases in cause-of-death diversity should be monitored to better understand mortality dynamics in aging populations. Our new MCOD diversity measures suggest that traditional approaches relying on single causes of death might be underestimating cause-of-death diversity dynamics, particularly for males. [ABSTRACT FROM AUTHOR]

BackgroundOpioids and stimulants (e.g., cocaine or methamphetamine/amphetamine [MAMP]) are major contributors to acute substance toxicity deaths. Causes of stimulant death have received little attention. We sought to characterize and compare causes of death and significant contributing conditions among persons who died from acute opioid, cocaine, or MAMP toxicity.MethodsWe identified all opioid, cocaine, or MAMP deaths in San Francisco from 2005 to 2015 through the California Electronic Death Reporting System. Multivariable logistic regression analyses were used to estimate associations between acute substance toxicity deaths (opioid versus stimulant; cocaine versus MAMP), additional reported causes of death, and significant contributing conditions most often linked to opioid and stimulant use.ResultsFrom 2005-2015, there were 1252 opioid deaths and 749 stimulant deaths. Cocaine accounted for most stimulant deaths. Decedents with cardiac or cerebral hemorrhage deaths had higher adjusted odds of death due to acute stimulant toxicity versus acute opioid toxicity (aOR = 4.79, 95%CI = 2.88-7.96, p

Background: The increasing prevalence of frailty in ageing populations represents a major social and public health challenge which warrants a better understanding of the contribution of frailty to the morbid process. Objective: To examine frailty-related mortality as reported on death certificates in France, Italy, Spain, and the United States in 2017. Methods: We identify frailty at death for the population aged 50 years and over in France, Italy, Spain, and the United States. We estimate the proportions of deaths by sex, age group, and country using specific frailty-related ICD-codes on the death certificate, (1) as the underlying cause of death (UC), (2) elsewhere in Part I (sequence of diseases or conditions or events leading directly to death), and (3) anywhere in Part II (conditions that do not belong in Part I but whose presence contributed to death). Results: The age-standardized proportion of deaths with frailty at ages 50 and over is highest in Italy (25.0Š) followed by France (24.1Š) and Spain (17.3Š), and lowest in the United States (14.0Š). Cross-country differences are smaller when frailty-related codes are either the underlying cause of the death or reported in Part II. Frailty-related mortality increases with age and is higher among females than males. Dementia is the most frequently reported frailty-related code. Conclusions: Notable cross-country differences were found in the prevalence and type of frailty-related symptoms at death, even after adjusting for differential age distributions. Contribution: Strong similarities between countries were found that warrant monitoring frailty at death in low-mortality countries to complement information on frailty prevalence in the living population.

Abstract Background The expanded definition of liver-related deaths includes a wide range of etiologies and sequelae. We compared the changes in liver-related mortality by etiology and sequelae for different age groups between 2008 and 2018 in the USA using both underlying and multiple cause of death (UCOD and MCOD) data. Methods We extracted mortality data from the CDC WONDER. Both the absolute (rate difference) and relative (rate ratio and 95% confidence intervals) changes were calculated to quantify the magnitude of change using the expanded definition of liver-related mortality. Result Using the expanded definition including secondary liver cancer and according to UCOD data, we identified 68,037 liver-related deaths among people aged 20 years and above in 2008 (29 per 100,000) and this increased to 90,635 in 2018 (33 per 100,000), a 13% increase from 2008 to 2018. However, according to MCOD data, the number of deaths was 113,219 (48 per 100,000) in 2008 and increased to 161,312 (58 per 100,000) in 2018, indicating a 20% increase. The increase according to MCOD was mainly due to increase in alcoholic liver disease and secondary liver cancer (liver metastasis) for each age group and hepatitis C virus (HCV) and primary liver cancer among decedents aged 65–74 years. Conclusion The direction of mortality change (increasing or decreasing) was similar in UCOD and MCOD data in most etiologies and sequelae, except secondary liver cancer. However, the extent of change differed between UCOD and MCOD data.

Purpose: to assess the burden of epilepsy as the underlying or contributory cause of death, to investigate time trends in mortality with epilepsy, and to examine the main associated comorbidities.Methods: All deaths from January 1, 2008 to December 31, 2019 with any mention of epilepsy were retrieved from the mortality register of the Veneto Region (Italy). The average annual percent change (AAPC) in age-standardized mortality rates was estimated by log-linear models. The association between mention of epilepsy and of selected disease categories in death certificates was assessed by conditional logistic regression.Results: Any mention of epilepsy was reported in 5,907 death certificates; of these, epilepsy was selected as the underlying cause in 1,020 decedents. Deaths with epilepsy represented 0.8% of total mortality in 2008-2011, increasing to 1.3% in 2016-2019. The AAPC was 4.7% for males (95% CI 3.0-6.4, p<0.001) and 6.2% for females (95% CI 4.5-7.9, p<0.001). A strong association was found between mention of epilepsy and meningitis/encephalitis, congenital anomalies/cerebral palsy and other paralytic syndromes, central nervous system tumours, cerebrovascular diseases, and dementia/Alzheimer.Conclusions: The present analysis from Southern Europe confirms recent reports limited to the UK and the US on increasing epilepsy-related mortality rates. aging of the population and the growing prevalence of neurological disorders are among long-term causes of this unfavorable trend; further studies on mortality data and other health archives are warranted. [ABSTRACT FROM AUTHOR]

Background: The expanded definition of liver-related deaths includes a wide range of etiologies and sequelae. We compared the changes in liver-related mortality by etiology and sequelae for different age groups between 2008 and 2018 in the USA using both underlying and multiple cause of death (UCOD and MCOD) data. Methods: We extracted mortality data from the CDC WONDER. Both the absolute (rate difference) and relative (rate ratio and 95% confidence intervals) changes were calculated to quantify the magnitude of change using the expanded definition of liver-related mortality. Result: Using the expanded definition including secondary liver cancer and according to UCOD data, we identified 68,037 liver-related deaths among people aged 20 years and above in 2008 (29 per 100,000) and this increased to 90,635 in 2018 (33 per 100,000), a 13% increase from 2008 to 2018. However, according to MCOD data, the number of deaths was 113,219 (48 per 100,000) in 2008 and increased to 161,312 (58 per 100,000) in 2018, indicating a 20% increase. The increase according to MCOD was mainly due to increase in alcoholic liver disease and secondary liver cancer (liver metastasis) for each age group and hepatitis C virus (HCV) and primary liver cancer among decedents aged 65–74 years. Conclusion: The direction of mortality change (increasing or decreasing) was similar in UCOD and MCOD data in most etiologies and sequelae, except secondary liver cancer. However, the extent of change differed between UCOD and MCOD data. [ABSTRACT FROM AUTHOR]

Abstract Background Chronic diseases, chiefly cancers and circulatory system diseases (CSDs), have become the leading non-AIDS-related causes of death among HIV-infected people, as in the general population. After our previous report of an excess mortality for several non-AIDS-defining cancers, we now aim to assess whether people with AIDS (PWA) experience also an increased mortality for CSDs and diabetes mellitus (DM), as compared to the non-AIDS general population (non-PWA). Methods A nationwide, population-based, retrospective cohort study was conducted including 5285 Italians, aged 15−74 years, who were diagnosed with AIDS between 2006 and 2011. Multiple cause-of-death (MCoD) data, i.e. all conditions reported in death certificates, were retrieved through record-linkage with the National Register of Causes of Death up to 2011. Using MCoD data, sex- and age-standardized mortality ratios (SMRs) with 95% confidence intervals (CIs) were calculated by dividing the observed number of PWA reporting a specific disease among MCoD to the expected number, estimated on the basis of mortality rates (based on MCoD) of non-PWA. Results Among 1229 deceased PWA, CSDs were mentioned in 201 (16.4%) certificates and DM in 46 (3.7%) certificates among the various causes of death. These values corresponded to a 13-fold higher mortality related to CSDs (95% CI 10.8–14.4) and DM (95% CI: 9.5–17.4) as compared to 952,019 deceased non-PWA. Among CSDs, statistically significant excess mortality emerged for hypertension (23 deaths, SMR = 6.3, 95% CI: 4.0–9.4), ischemic heart diseases (39 deaths, SMR = 6.1, 95% CI: 4.4–8.4), other forms of heart diseases (88 deaths, SMR = 13.4, 95% CI: 10.8–16.5), and cerebrovascular diseases (42 deaths, SMR = 13.4, 95% CI: 9.7–18.2). The SMRs were particularly elevated among PWA aged

Musculoskeletal diseases (MSDs) are a topical medical, social, and economic problem. According to the 2015 data, MSDs in the structure of primary morbidity were 3.9% and those in the structure of mortality were 0.2% in the Russian Federation. Official mortality statistics is formed only by one (underlying) cause of death. The study of multiple causes of death will enable the understanding of its mechanisms, the necessity of making changes in the management tactics for patients and in the standards of medical care, as well as the possibility of correcting the mortality reduction plans. Objective: to investigate the reliability of statistics on MSD mortality and the ways of its reduction, by analyzing the underlying and multiple causes of death. Materials and methods. This investigation used a database on medical death certificates of the residents of the Tula Region in 2015. Mortality rates were calculated by conventional statistical methods. Death rates for the Russian Federation and the Tula Region were taken from the book «Medico-demographic indicators of the Russian Federation in 2015» by the Ministry of Health of Russia and C52 tables by the Federal State Statistics Service. The 2012–2014 European mortality databases were used for international comparisons. Results and discussion. The mortality rates were analyzed using the underlying and multiple causes of death. Expert evaluation showed that the 2015 mortality rates from MSDs were underestimated by approximately 11%. The MSD mortality rates in the Tula Region were 2.4 and 2.7 times higher than those in the entire Russian Federation and in Europe, respectively. Defects were found in drawing up medical death certificates. The reliability of mortality statistics was shown to be related to monitoring, physician training, and introduction of an automated system. Emphasis is laid on the correction of treatment tactics for patients with MSD.

Background: In recent years, there have been adverse trends in premature cardiovascular disease (CVD) mortality rates (35-74 years) in the USA and Australia. Following long-term declines, rates in the USA are now increasing while falls in Australia have slowed rapidly. These two countries also have the highest adult obesity prevalence of high-income countries. This study investigates the role of overweight and obesity in their recent CVD mortality trends by using multiple cause of death (MCOD) data-direct individual-level evidence from death certificates-and linking the findings to cohort lifetime obesity prevalence.Methods: We identified overweight- and obesity-related mortality as any CVD reported on the death certificate (CVD MCOD) with one or more of diabetes, chronic kidney disease, obesity, lipidemias or hypertensive heart disease (DKOLH-CVD), causes strongly associated with overweight and obesity. DKOLH-CVD comprises 50% of US and 40% of Australian CVD MCOD mortality. Trends in premature age-standardized death rates were compared between DKOLH-CVD and other CVD MCOD deaths (non-DKOLH-CVD). Deaths from 2000 to 2017 in the USA and 2006-2016 in Australia were analyzed. Trends in in age-specific DKOLH-CVD death rates were related to cohort relative lifetime obesity prevalence.Results: Each country's DKOLH-CVD mortality rate rose by 3% per annum in the most recent year, but previous declines had reversed more rapidly in Australia. Non-DKOLH-CVD mortality in the USA increased in 2017 after declining strongly in the early 2000s, but in Australia it has continued declining in stark contrast to DKOLH-CVD. There were larger increases in DKOLH-CVD mortality rates at successively younger ages, strongly related with higher relative lifetime obesity prevalence in younger cohorts.Conclusions: The increase in DKOLH-CVD mortality in each country suggests that overweight and obesity has likely been a key driver of the recent slowdown or reversal of CVD mortality decline in both countries. The larger recent increases in DKOLH-CVD mortality and higher lifetime obesity prevalence in younger age groups are very concerning and are likely to adversely impact CVD mortality trends and hence life expectancy in future. MCOD data is a valuable but underutilized source of data to track important mortality trends. [ABSTRACT FROM AUTHOR]

Abstract Background Multiple cause-of-death (MCOD) data allow analyzing the contribution to mortality of conditions reported on the death certificate that are not selected as the underlying cause of death. Using MCOD data, this study aimed to fully describe the cause-specific mortality of people with AIDS (PWA) compared to people without AIDS. Methods We conducted a nationwide investigation based on death certificates of 2,515 Italian PWA and 123,224 people without AIDS who had died between 2006 and 2010. The conditions most frequently associated with PWA mortality, compared to people without AIDS, were identified using an age-standardized proportion ratio (ASPR) calculated as the ratio between the age-standardized proportion of a specific cause among PWA and the same proportion among people without AIDS. Results The most frequently reported conditions at death among PWA were infectious/parasitic diseases (52%), digestive (36%), respiratory (33%), and circulatory (32%) system diseases, and neoplasms (29%). All AIDS-defining conditions resulted highly associated (ASPR significantly greater than unity) with PWA deaths. Significant associations also emerged for leishmaniasis (ASPR = 188.0), encephalitis/myelitis/encephalomyelitis (ASPR = 14.3), dementia (ASPR = 13.1), chronic viral hepatitis (ASPR = 13.1), liver fibrosis/cirrhosis (ASPR = 4.4), pneumonia (ASPR = 4.4), anal (ASPR = 12.1) and liver (ASPR = 1.9) cancers, and Hodgkin’s disease (ASPR = 3.1). Conclusions Study findings identified the contribution of several non-AIDS-defining conditions on PWA mortality, emphasizing the need of preventive public health interventions targeting this population.

Diseases of the musculoskeletal system (DMSS) are a topical social, medical, and economic problem. They are widespread and account for about 10% of the overall morbidity and primary disability of population, about 5% of primary morbidity, and about 0.1% of mortality. The reliable statistics are important to analyze the situation and make necessary adjustments to the organization of medical care.Objective. To examine the accuracy of the data on morbidity and mortality from DMSS in the Tula region.Materials and Methods. Data from statistical reports, reference documents, and databases of Tula region residents (including those who died in 2000–2011) were used.Results. The inequality in growth rates of general and primary morbidity were revealed, which is indicative of incorrect coding and underestimation of DMSS in medical organizations of the Tula region.A comprehensive phased statistical study was carried out to assess validity of the mortality data, including the following: verification of databases for errors using an automated system; control of postmortal diagnosis quality using the four-digit subcategory code in accordance with the WHO recommendations; analysis according to the initial and multiple causes of death. Underestimation of mortality from rheumatoid arthritis by about 25% was revealed. Attention was paid to the implementation and use of automated systems.

Background: Multiple cause-of-death (MCOD) data allow analyzing the contribution to mortality of conditions reported on the death certificate that are not selected as the underlying cause of death. Using MCOD data, this study aimed to fully describe the cause-specific mortality of people with AIDS (PWA) compared to people without AIDS. Methods: We conducted a nationwide investigation based on death certificates of 2,515 Italian PWA and 123,224 people without AIDS who had died between 2006 and 2010. The conditions most frequently associated with PWA mortality, compared to people without AIDS, were identified using an age-standardized proportion ratio (ASPR) calculated as the ratio between the age-standardized proportion of a specific cause among PWA and the same proportion among people without AIDS. Results: The most frequently reported conditions at death among PWA were infectious/parasitic diseases (52%), digestive (36%), respiratory (33%), and circulatory (32%) system diseases, and neoplasms (29%). All AIDS-defining conditions resulted highly associated (ASPR significantly greater than unity) with PWA deaths. Significant associations also emerged for leishmaniasis (ASPR = 188.0), encephalitis/myelitis/encephalomyelitis (ASPR = 14.3), dementia (ASPR = 13.1), chronic viral hepatitis (ASPR = 13.1), liver fibrosis/cirrhosis (ASPR = 4.4), pneumonia (ASPR = 4.4), anal (ASPR = 12.1) and liver (ASPR = 1.9) cancers, and Hodgkin's disease (ASPR = 3.1). Conclusions: Study findings identified the contribution of several non-AIDS-defining conditions on PWA mortality, emphasizing the need of preventive public health interventions targeting this population. [ABSTRACT FROM AUTHOR]

Prepandemic time trends in mortality from chronic liver disease (CLD) differed according to specific cause of death (decreasing for liver cirrhosis, stable or increasing for liver cancer), etiology (increasing for nonalcoholic fatty liver disease, generally decreasing for other etiologies), and world region (decreasing in areas with the highest burden of hepatitis B virus, increasing in Eastern Europe and other countries). The coronavirus disease 2019 (COVID-19) pandemic affected mortality of patients with CLD both directly, with a higher risk for severe illness and death depending on age, stage and etiology of the disease, and indirectly, through social isolation and loss of support, harmful drinking, and difficulties in access to care. Nevertheless, only sparse data are available on variations in CLD as a cause of death during the pandemic. In the USA, in 2020-2021 a growth in mortality was registered for all liver diseases, more marked for alcoholic liver disease, especially among young people aged 25-44 years and in selected ethnic groups. COVID-19 related deaths accounted only for a minor part of the excess. Further data from mortality registers of other countries are warranted, preferably adopting the so-called multiple cause-of-death approach, and extended to deaths attributed to viral hepatitis and liver cancer., Competing Interests: Conflict-of-interest statement: The authors declare they have no conflict of interest., (©The Author(s) 2023. Published by Baishideng Publishing Group Inc. All rights reserved.)

Background: The increasing prevalence of frailty in aging populations represents a major social and public health challenge which warrants a better understanding of the contribution of frailty to the morbid process., Objective: To examine frailty-related mortality as reported on the death certificate in France, Italy, Spain and the United States in 2017., Methods: We identify frailty at death for the population aged 50 years and over in France, Italy, Spain and the United States. We estimate the proportions of deaths by sex, age group and country with specific frailty-related ICD-codes on the death certificate 1) as the underlying cause of death (UC), 2) elsewhere in Part I (sequence of diseases or conditions or events leading directly to death), and 3) anywhere in Part II (conditions that do not belong in Part I but whose presence contributed to death)., Results: The age-standardized proportion of deaths with frailty at ages 50 and over is highest in Italy (25.0%), then in France (24.1%) and Spain (17.3%), and lowest in the United States (14.0%). Cross-country differences are smaller when frailty-related codes are either the underlying cause of the death or reported in Part II. Frailty-related mortality increases with age and is higher among females than males. Dementia is the most frequently reported frailty-related code., Conclusions: Notable cross-country differences were found in the prevalence and the type of frailty-related symptoms at death even after adjusting for differential age distributions., Competing Interests: Declaration of conflicting interests: The Authors declare that there is no conflict of interest.

O estudo das causas múltiplas de óbitos permite conhecer a extensão real das estatísticas de mortalidade. O objetivo desta pesquisa foi avaliar a tendência das taxas de mortalidade relacionada à asma, no Município do Rio de Janeiro, Brasil, no período de 2000-2009, com dados obtidos no Sistema de Informações de Mortalidade (SIM), de indivíduos com um ano ou mais de idade, em que a asma foi mencionada em qualquer linha ou parte do atestado médico da declaração de óbito. Para análise de dados foi utilizada a técnica de regressão linear. A série histórica mostrou tendência ao declínio nas taxas de mortalidade padronizadas relacionada à asma como causa básica e múltipla, com redução entre os homens e estabilidade entre as mulheres. Quando a asma foi a causa básica, as causas associadas mais frequentes foram doenças do aparelho respiratório. A mortalidade relacionada à asma foi subestimada quando considerada apenas como causa básica, o que poderia ser evitado com a utilização da metodologia de causas múltiplas nas estatísticas de mortalidade por asma.El estudio de las causas múltiples de óbitos permite conocer la extensión real de las estadísticas de mortalidad. El objetivo de esta investigación fue evaluar la tendencia de las tasas de mortalidad, relacionada con el asma, en el municipio de Río de Janeiro, Brasil, en el período de 2000-2009, con los datos obtenidos en el Sistema de Información de Mortalidad (SIM), de individuos con un año o más de edad, en quienes el asma fue mencionada en cualquier línea o parte del certificado médico de defunción. Para el análisis de datos fue utilizada la técnica de regresión lineal. La serie histórica mostró una tendencia al declive en las tasas de mortalidad estandarizadas, relacionada con el asma como causa básica y múltiple, con reducción entre los hombres y estabilidad entre las mujeres. Cuando el asma fue la causa básica, las razones asociadas más frecuentes fueron enfermedades del aparato respiratorio. La mortalidad relacionada con el asma fue subestimada cuando se consideraba solamente como causa básica, lo que podría ser evitado con la utilización de la metodología de causas múltiples en las estadísticas de mortalidad por asma.The study of multiple causes of death helps reveal the true extent of mortality statistics. The aim of this study was to assess trends in asthma mortality rates in the city of Rio de Janeiro, Brazil, from 2000 to 2009, based on data from the Mortality Information System among individuals one year or older, in which asthma was mentioned on any line or in any part of the death certificate. Linear regression was used for data analysis. The historical series showed a downward trend in the standardized mortality rate related to asthma as the underlying or associated cause of death, with a reduction in males and stability in females. When asthma was the underlying cause, the most common associated causes were diseases of the respiratory system. Asthma-related mortality was underestimated when considered only as the underlying cause, which could be avoided by the use of a multicausal methodology in asthma mortality statistics.

OBJETIVO: Avaliar a qualidade do Sistema de Informações sobre Mortalidade (SIM) em uma coorte especial de pacientes hospitalizados pelo Sistema Único de Saúde (SIH-SUS) que sofreram amputação de membros inferiores (AMI) devido ao diabetes mellitus (DM) em 2000, e comparar a mortalidade por causas da coorte com a da base populacional do Estado do Rio de Janeiro (ERJ) de 2000 a 2003. MÉTODOS: Os dados foram gerados a partir do relacionamento entre as bases de dados do SIH-SUS (2000) e do SIM (2000-2003). Foram excluídos os registros de indivíduos com menos de 30 anos e para análise de menção de DM, óbitos por causa básica (CB) não natural. A mortalidade foi analisada segundo causas da coorte especial e da base populacional. Os marcadores de qualidade do SIM na coorte foram a proporção de causas mencionadas de morte por DM e a proporção de CB mal definidas (MD) e, na base populacional, apenas o último. RESULTADOS: 38,0% dos indivíduos da coorte (n = 977) morreram nos quatro anos subsequentes à AMI devido ao DM, sendo que 49,1% desses no primeiro ano. As doenças endócrinas, nutricionais e metabólicas (41,5%), do aparelho circulatório (28,5%) e as causas MD (8,1%) foram as primeiras CB de morte. O DM foi mencionado 41,0% como CB, 1,6% como causa consequencial e 10,0% como contribuinte entre os óbitos pelas demais CB naturais nas declarações de óbito. Na base populacional, a mortalidade proporcional por causas MD foi 11,8% . CONCLUSÃO: O elevado risco de morte, o perfil de causas de morte e a sub-declaração do DM no atestado de óbito dos diabéticos tiveram resultados semelhantes aos de outros estudos de base populacional. A qualidade da certificação das causas de morte preenchidas nas declarações de óbito da coorte especial foi considerada ruim. É necessário um grande investimento para melhorar a qualidade da certificação das causas de mortes com o correto preenchimento do atestado de óbito pelos médicos e da codificação das causas de morte e seleção da CB pelos técnicos dos serviços de saúde. A metodologia desenvolvida neste estudo visando qualificar o SIM (relacionamento de base de dados e causas múltiplas de morte) mostrou-se efetiva e eficiente.OBJECTIVE: The aim of this study was to demonstrate the quality of the National Mortality Information System (SIM) in a special cohort of inpatients submitted to lower limb amputation (LLA) as a result of diabetes mellitus (DM), and compare the mortality pattern by causes for the cohort and for the population base of the State of Rio de Janeiro, from 2000 to 2003. METHODS: Data were generated from the linkage of the National Hospital Admittance Authorization - SIH-SUS (2000) and SIM (2000-2003) databases. Individuals under 30 years were excluded from the study, and deaths due to violent causes were also excluded in order to analyze the mention of DM as cause of death. Analyses of causes of death were conducted both in the cohort and the population base. Quality markers of SIM in the cohort were the frequency of mention of diabetes mellitus in the death certificate and the proportion of deaths classified as non-specific causes of death, and non-specific causes of death in the population base. RESULTS: 38.0% in the special cohort (n = 977) died during the four years following LLA as a result of diabetes mellitus (DM), and 49.1% of these deaths occurred during the first year. Endocrine, nutritional metabolic (41.5%), and cardiovascular diseases (28.5%), and non-specific causes of death (8.1%) were the main underlying causes of death (UC). DM was mentioned as UC for 41.0%, as a sequential cause for 1.6%, and as contributive cause for 10.0%, among the other natural underlying causes of death besides DM on death certificates. Non-specific underlying causes of death accounted for 11.8% of death certificates in the population base. CONCLUSIONS: The high risk of death, the causes of death and the underreporting of DM on death certificates of adults with diabetes were similar to other population-based mortality studies. In the special cohort, the quality of the causes of death on certificates was considered bad. The improvement in the reliability of cause-of-death depends on the ability of physicians to register, and of healthcare facilities to codify correctly the causes of death on death certificates. The method (linkage of data and multiple causes of death) applied in this study to qualify death information was efficient and effective.

OBJETIVO: Identificar as causas associadas de morte e o número de causas informadas nas declarações de óbito por doenças cerebrovasculares entre residentes no Estado do Paraná. MATERIAL E MÉTODOS: O banco de dados de mortalidade do ano de 2004 foi obtido do Sistema de Informação de Mortalidade disponível no endereço eletrônico do Datasus. A população escolhida foi separada pelo programa TabWin e as causas múltiplas foram processadas pelo programa Tabulador de Causas Múltiplas de Morte. RESULTADOS: O número médio de causas informadas foi de 2,92 para as mulheres e 2,97 para os homens. A maioria dos óbitos (74,8%) foi de pessoas com 65 anos ou mais de idade. Entre as causas associadas aos óbitos por doenças cerebrovasculares se destacaram as doenças do aparelho respiratório (37,9%), as doenças hipertensivas (37,5%) e os sintomas, sinais e achados anormais de exames clínicos e de laboratório (32,3%). CONSIDERAÇÕES FINAIS: Foi observada relativa melhora na qualidade dos dados de mortalidade em relação ao número de causas citadas. A hipertensão arterial como uma das principais causas associadas sugere a necessidade do seu controle no combate à mortalidade por doenças cerebrovasculares. Incentivos devem ser promovidos para estudos com causas múltiplas, para que se utilizem melhor informações tão importantes, que são desprezadas em estudos de mortalidade feitos somente com a causa básica de morte.OBJECTIVE: To identify associated causes and the number of causes on death certificates that reported cerebrovascular diseases as the underlying cause among residents of the State of Paraná, in Brazil. METHODS: Mortality data in 2004 were obtained on the Datasus website. The population was selected by the TabWin program and multiple causes were processed by the Multiple Causes of Death Tabulator program. RESULTS: The mean number of causes listed on death certificates was 2.92 for women and 2.97 for men. Most people who died (74.8%) were aged 65 or older. Among the major causes associated with cerebrovascular disease deaths were respiratory diseases (37.9%), hypertensive diseases (37.5%), and symptoms, signs and abnormal clinical and laboratory tests (32.3%). FINAL CONSIDERATIONS: There was a relative improvement in the quality of mortality data regarding the number of causes registered. Hypertension as a major associated cause suggests the need for its control in the fight against mortality caused by cerebrovascular disease. Studies with multiple causes should be encouraged, taking into account all causes listed on death certificates, many of which are overlooked in mortality studies that only use the underlying cause of death.

Background: Multiple causes of death describe complex death processes marked by the simultaneous presence of several diseases and conditions, primarily at older ages. Objective: We intend to explore the opportunity offered by the Social Network Analysis (SNA) in the study of multiple relationships in the causes of death. Methods: SNA allowed us to reconstruct the complex system of relationships linking the causes of death mentioned in the same death certificate for Italian men and women aged 65 years and over in 2011. The causes can be represented as actors of a network where the relational tie establishes a linkage between a cause mentioned together with another. The strength of this association is represented by the frequency of the joint mentioning in the same certificate controlling for the confounding effect due to the different prevalence of the causes. Results: The analysis clearly brought out that causes of death describe a very dense system of relationships. Considering only the strongest associations, the graphical analysis showed subgroups of causes, within which cross-references are very frequent while mentions external to the group are rare. Moreover, SNA concepts and instruments allowed us to identify causes playing important roles in death processes and mortality patterns. Conclusions: SNA has proved to be very powerful in identifying the relationships between causes of death, on which health policies should take action to further reduce mortality risks of elderly persons. Contribution: The method was able to highlight complex structures composing subgroups of diseases, offering a clearer picture of the characteristics of death processes than the analyses conducted so far have allowed.

INTRODUÇÃO: A prevalência da hipertensão arterial vem crescendo no país, constituindo-se em um problema de saúde pública por sua magnitude e dificuldades no controle. OBJETIVO: Avaliar a qualidade dos dados sobre hipertensão como causa de morte e verificar o ganho de informação na mortalidade por hipertensão arterial de mulheres de 10 a 49 anos, por meio da metodologia de análise por causas múltiplas de morte. MATERIAL E MÉTODOS: Foi constituída uma base de dados com 7.332 óbitos ocorridos no primeiro semestre de 2002 pertencentes ao "Estudo da Morbi-Mortalidade de Mulheres de 10 a 49 anos". A metodologia RAMOS (Reproductive Age Mortality Survey) foi aplicada em todas as capitais de Estados brasileiros e Distrito Federal. Com as informações adicionais, foi preenchida uma nova declaração de óbito - DO-NOVA. Foram analisados dois conjuntos de dados (DO-ORIGINAL - antes da investigação - e DO-NOVA - após resgate das informações. Foram realizadas comparações segundo causas básicas e múltiplas por fontes dos dados (DO-O, DO-N). RESULTADOS E CONCLUSÃO: A DO-ORIGINAL apresentou algumas falhas quantitativas e qualitativas. Concluiu-se que a análise por causas múltiplas enriquece a informação, com base nas DO. São necessárias ações contínuas para um melhor preenchimento da DO, pelos médicos, e deve haver mais estudos que adotem a metodologia de causas múltiplas.INTRODUCTION: Hypertension is a public health problem due to its magnitude and difficulties in its control. OBJECTIVE: The objectives were to verify the quality of death certificates (DC) and gain in information when the multiple cause of death methodology is performed, in DC of women from 10 to 49 years filled out with hypertension as an underlying or an associated cause of death. METHODS: The database consisted of 7,332 DC of the first semester of 2002 collected in the "Study of women in childbearing age, living in the capitals of all Brazilian States and Federal District". The RAMOS methodology was adopted and household interviews and hospital records were collected. With the new information, a new death certificate was filled out. Two data sets were built (DC-ORIGINAL and DC-NEW) and comparisons of the distributions of deaths according to causes of death and source (DC-O, DC-N) were done. RESULTS: Some physicians are not filling out DC appropriately. The analysis of multiple causes of death allows the attainment of much more information. Campaigns to motivate physicians are necessary to improve the quality of DCs, as well as mortality studies have to be analyzed according to underlying causes of death, and also by means of the multiple causes of death methodology.

Trata-se de estudo seccional, com base em dados secundários, com o objetivo de traçar o perfil dos óbitos neonatais precoces ocorridos em uma Maternidade Pública de referência no Estado de Minas Gerais (Maternidade Odete Valadares), Belo Horizonte, no período de 2001 a 2006. Foram utilizadas variáveis relacionadas ao recém-nascido (período de ocorrência do óbito, idade ao óbito, sexo, idade gestacional e peso ao nascer), à mãe (tipo de gravidez, tipo de parto, idade, parturição e número de nascidos mortos), bem como causas múltiplas de mortalidade categorizadas. Obtiveram-se três perfis de óbitos neonatais precoces por meio do método Grade of Membership, que possibilitou também encontrar a prevalência destes perfis. O Perfil 1 foi caracterizado por óbitos de difícil redução e teve prevalência de 41,4%; o Perfil 2, pelos óbitos passíveis de redução (prevalência de 28,3%); e o Perfil 3, pelos óbitos redutíveis (prevalência de 30,4%). Estes perfis possibilitaram a compreensão da mortalidade neonatal precoce na Maternidade Odete Valadares e a análise da sua relação com a história reprodutiva e obstétrica materna, bem como com as condições do recém-nascido. Chama a atenção a elevada prevalência de óbitos evitáveis, realidade que deve ser enfrentada pelos profissionais e pela rede pública de saúde.This is a cross-sectional study with the aim of describing the early neonatal deaths that took place at a Public Maternity Hospital, Maternidade Odete Valadares in Belo Horizonte, Minas Gerais, Brazil, from 2001 to 2006. It used variables related to the newborn (period the death took place, age at death, gender, gestational age, and birth weight), to the mother (type of pregnancy, type of delivery, age, parity, and number of stillborn children), and to the multiple causes of death. Three profiles of early neonatal death were obtained through the Grade of Membership method (GoM), which also made it possible to find the prevalence of such profiles in the study population. Profile 1 was characterized by deaths of difficult reduction (prevalence of 41.4%); Profile 2 was characterized by deaths amenable to reduction (prevalence of 28.3%); finally, Profile 3 was marked by preventable deaths (prevalence of 30.4%). These profiles provided an understanding of the spectrum of causes of early neonatal mortality at Maternidade Odete Valadares, along with the analysis of its relationship with the reproductive, obstetric and maternal history, as well as with newborn conditions. The high prevalence of preventable deaths is a reality at Maternidade Odete Valadares, which should be tackled by healthcare workers and public health authorities.

Estudo de base populacional para determinar perfis de óbitos neonatais precoces ocorridos em Belo Horizonte, Minas Gerais, Brasil, de 2000 a 2003. A defini��ão dos perfis de causas amplia possibilidade de análise sob enfoque de evitabilidade, justificada pela persistência de altas taxas de mortalidade neonatal precoce. Três perfis foram gerados, a partir do enfoque de causas múltiplas, sob a perspectiva dos conjuntos nebulosos ("fuzzy sets"), utilizando-se técnica Grade of Membership. Relacionaram-se esses perfis ao peso de nascimento e a natureza jurídica do hospital de ocorrência do óbito. Nos hospitais da rede privada ocorreram "óbitos dificilmente preveníveis, com menção de malformação congênita" (perfil 2). Aos hospitais do Sistema Único de Saúde (SUS) associaram-se dois perfis distintos. Nos hospitais contratados/conveniados ocorreram os "óbitos passíveis de prevenção" (perfil 1) e na rede própria os "óbitos de prematuros" (perfil 3). A tipologia observada aponta para necessidade de adoção de políticas diferenciadas na rede SUS: prioritariamente, na rede contratada/conveniada, ações voltadas para credenciamento e avaliação da qualidade da assistência; e, em toda rede, adoção rotineira de protocolos assistenciais e medidas profiláticas, redutores da morbimortalidade neonatal.This population-based study aimed to determine the profile of early neonatal deaths in Belo Horizonte, Minas Gerais, Brazil, from 2000 to 2003. Profiles were analyzed from the perspective of avoidability, justified by persistently high early neonatal mortality rates in the city. Three profiles were generated for multiple causes of death from the perspective of fuzzy sets, using the Grade of Membership method. Birth weight and the hospital's corporate status were also related to the three profiles. Private hospitals were characterized by so-called "difficult-to-prevent deaths, with mention of congenital malformations" (profile 2). The Unified National Health System (SUS) generated two distinct profiles. Private maternity facilities contracted out by the SUS showed "preventable deaths" (profile 1), while "premature deaths" (profile 3) occurred in the public Federal and State maternity hospitals. This typology highlights the need to adopt differential policies in the SUS, focusing on evaluation and accreditation for maternity facilities contracted out by the SUS and - for the system as a whole - on the routine adoption of protocols for childbirth care and prophylactic measures that are known to reduce neonatal morbidity and mortality.

Background: Non-AIDS-defining cancers (non-ADCs) have become the leading non-AIDS-related cause of death among people with HIV/AIDS. We aimed to quantify the excess risk of cancerrelated deaths among Italian people with AIDS (PWA), as compared with people without AIDS (non-PWA). Methods: A nationwide, population-based, retrospective cohort study was carried out among 5285 Italian PWA, aged 15-74 years, diagnosed between 2006 and 2011. Date of death and multiplecause- of-death data were retrieved up to December 2011. Excess mortality, as compared with non-PWA, was estimated using sex- and age-standardized mortality ratios (SMRs) and the corresponding 95% confidence intervals (CIs). Results: Among 1229 deceased PWA, 10.3% reported non-ADCs in the death certificate, including lung (3.1%), and liver (1.4%), cancers. A 7.3-fold (95% CI: 6.1 to 8.7) excess mortality was observed for all non-ADCs combined. Statistically significant SMRs emerged for specific non-ADCs, ie, anus (5 deaths, SMR = 227.6, 95% CI: 73.9 to 531.0), Hodgkin lymphoma (12 deaths, SMR = 122.0, 95% CI: 63.0 to 213.0), unspecified uterus (4 deaths, SMR = 52.5, 95% CI: 14.3 to 134.5), liver (17 deaths, SMR = 13.2, 95% CI: 7.7 to 21.1), skin melanoma (4 deaths, SMR = 10.9, 95% CI: 3.0 to 27.8), lung (38 deaths, SMR = 8.0, 95% CI: 5.7 to 11.0), head and neck (9 deaths, SMR = 7.8, 95% CI: 3.6 to 14.9), leukemia (5 deaths, SMR = 7.6, 95% CI: 2.4 to 17.7), and colon-rectum (10 deaths, SMR = 5.4, 95% CI: 2.6 to 10.0). SMRs for non-ADCs were particularly elevated among PWA infected through injecting drug use. Conclusion: This population-based study documented extremely elevated risks of death for non-ADCs among PWA. These findings stress the need of preventive interventions for both virus-related and non-virus-related cancers among HIV-infected individuals. [ABSTRACT FROM AUTHOR]

OBJETIVOS: Descrever o padrão da mortalidade infantil no Estado de São Paulo em 1999, segundo causas múltiplas de morte, bem como comparar os dados de causas básicas e múltiplas de óbito. MATERIAL E MÉTODOS: Utilizou-se dados de 12.793 óbitos infantis para 1999, obtidos da Fundação Sistema Estadual de Análise de Dados (Seade). As causas de óbito haviam sido codificadas de acordo com a Décima Classificação Internacional de Doenças e foram categorizadas em 28 grupos de causas. Para análise das causas múltiplas de morte, fez-se uma tabulação simples das mesmas e utilizou-se a análise de componentes principais, a fim de se obter os principais grupos de enfermidades que conduziram ao óbito. RESULTADOS: As principais causas múltiplas de óbito foram os transtornos respiratórios e cardiovasculares específicos do período perinatal (24,2% do total de causas múltiplas), os transtornos relacionados com a duração da gestação e com o crescimento fetal (20,2%), as malformações congênitas (8,6%) e as infecções perinatais (7,6%). A análise de componentes principais revelou três componentes interpretáveis, relativos aos óbitos devidos a causas de origem "pós-neonatais, infecciosas, redutíveis", às "complicações de procedimentos e causas externas" e aos "transtornos perinatais não associados ao baixo peso e/ou à imaturidade". CONCLUSÃO: A sistematização das causas múltiplas de morte em conjuntos de enfermidades permitiu analisá-las e entender como se associavam, desdobrando-se em manifestações de doenças que conduziram à morte, o que não é possível através da análise segundo causas básicas. Foi possível, então, observar com maior clareza os conjuntos de enfermidades que levaram ao óbito, o que é mais elucidativo para fins de Saúde Pública, visando a prevenção das doenças em suas diversas fases de causação.OBJECTIVE: To describe infant mortality in the State of São Paulo, in 1999, based on multiple causes of death and to compare data from underlying and multiple causes of death. METHODS: Data came from 12,793 infant death records in 1999, of Seade Foundation (State Data Analysis System Foundation). Causes of death were coded according to the Tenth Revision of the International Statistical Classification of Diseases and Related Problems and were classified into 28 meaningful groups for the purpose of this article. In order to analyze multiple causes of death, simple frequencies were used in addition to principal components analysis to obtain the main groups of causes that contributed to death. RESULTS: The most frequent multiple causes of death were respiratory and cardiovascular diseases of the perinatal period (24.2% of all multiple causes), diseases related to growth and maturity of the fetus and the newborn (20.2%), congenital malformations (8.6%) and perinatal infections (7.6%). Principal components analysis revealed three major interpretable components: "post-neonatal, infectious and avoidable deaths", "complications of procedures and external causes" and "perinatal disorders, not related to low birth weight and/or immaturity". CONCLUSION: By using principal components analysis it was easier to understand how the multiple causes were associated. This is more interesting for Public Health purposes, because it may help clarify the steps in disease causation.

Uma das possibilidades permitidas pelo avanço tecnológico é o estudo da mortalidade por causas múltiplas em contraposição à estatística feita por uma única causa, a chamada causa básica de morte. O conhecimento das várias doenças que contribuem para uma morte permite que seja avaliada a importância das causas que normalmente não estariam privilegiadas nas estatísticas porque são doenças não caracterizadas como causa básica. Um exemplo é a mortalidade por infarto do miocárdio em pessoas com diabetes mellitus. Este último, neste caso e em outros semelhantes, poderá não ser considerado nas estatísticas, enquanto o infarto o será. Desta forma, no exemplo citado, analisando apenas a causa básica, perde-se a informação sobre a magnitude do diabetes e sua relação com as complicações que levam à morte. A idéia da elaboração de estatísticas de mortalidade segundo causas múltiplas não é nova. No entanto não é realizada de forma sistemática, ainda que vários estudos mostrem suas vantagens. Entre essas vantagens estão a possibilidade de descobrir novas associações de doenças; conhecer informações sobre a natureza das lesões em casos de morte por causas externas (acidentes e violências), entre outras. A existência de computadores e de programas específicos para a elaboração das estatísticas de mortalidade, atualmente em uso, deve permitir que essa idéia seja colocada em prática e que, a partir das estatísticas de mortalidade por causas múltiplas, possibilite melhores e mais específicas ações de saúde.The introduction of new technology has made it possible to study multiple causes of death as opposed to mortality statistics based only on the underlying cause of death. The knowledge of all diseases that contribute to one death allows the assessment of the importance of causes that frequently do not appear in mortality statistics, because of those diseases that are not characterized as the underlying cause. An example is the death by myocardial infarction of a person that also has diabetes mellitus. The idea of producing mortality statistics according to multiple causes is not new. However, it is not a routine, although several studies have demonstrated its advantages. Among the advantages is the possibility of finding new associations of diseases and to know the nature of the injury according to the type of accident or violence. The utilization of computers and specific programs for producing mortality statistics enables multiple-cause statistical calculations, a practice that should be stimulated.

OBJETIVOS: Descrever o padrão da mortalidade devida a Aids segundo causas básica e associadas de morte no Estado de São Paulo, em 1998. MÉTODOS: Os dados sobre a mortalidade e a população residente no Estado de São Paulo, SP, para 1998, foram obtidos na Fundação Sistema Estadual de Análise de Dados (Seade). As causas de morte foram codificadas pelas disposições da Décima Revisão da Classificação Estatística Internacional de Doenças e Problemas Relacionados à Saúde. Os registros de Aids como causa básica e associada de morte foram recuperados e revistos. RESULTADOS: A Aids foi a causa básica em 4.619 mortes, correspondendo à décima causa (2,0%) e ao coeficiente de mortalidade de 13,1 por 100.000 habitantes. As razões das mortes e os respectivos coeficientes entre homens e mulheres foram de 2,4 e 2,5. A Aids foi a segunda causa entre os homens de 20 a 34 anos de idade e entre as mulheres de 25 a 34. A idade média ao morrer entre as mulheres (34,1±12,2 anos) foi estatisticamente menor que a dos homens (36,4±10,7 anos) -- pOBJECTIVES: To describe the Aids mortality according to its underlying and associated causes of death in the State of S. Paulo in 1998. METHODS: Mortality and population data for 1998 were obtained from the State Data Analysis System Department (Fundação Sistema Estadual de Análise de Dados - Seade). Causes of death were coded according to the Tenth Revision of the International Statistical Classification of Diseases and Related Health Problems. RESULTS: Aids was the underlying cause in 4,619 deaths, corresponding to the 10th leading cause of death (2.0%) and a mortality rate of 13.1/100,000 population. Male/female death ratio and rate ratios were respectively 2.4 and 2.5. Aids was the second leading cause of death among men aged 20--34 and women aged 25--34 years. Median age at death for women (34.1±12.2 years old) was lower than men (36.4±10.7 years old) -- p