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Objective Prevention and early detection of colorectal cancer (CRC) can increase the chances of successful treatment and reduce burden. Various data mining technologies have been utilized to strengthen the early detection of CRC in primary care. Evidence synthesis on the model’s effectiveness is scant. This systematic review synthesizes studies that examine the effect of data mining on improving risk prediction of CRC. Methods The PRISMA framework guided the conduct of this study. We obtained papers via PubMed, Cochrane Library, EMBASE and Google Scholar. Quality appraisal was performed using Downs and Black’s quality checklist. To evaluate the performance of included models, the values of specificity and sensitivity were comparted, the values of area under the curve (AUC) were plotted, and the median of overall AUC of included studies was computed. Results A total of 316 studies were reviewed for full text. Seven articles were included. Included studies implement techniques including artificial neural networks, Bayesian networks and decision trees. Six articles reported the overall model accuracy. Overall, the median AUC is 0.8243 [interquartile range (IQR): 0.8050−0.8886]. In the two articles that reported comparison results with traditional models, the data mining method performed better than the traditional models, with the best AUC improvement of 10.7%. Conclusions The adoption of data mining technologies for CRC detection is at an early stage. Limited numbers of included articles and heterogeneity of those studies implied that more rigorous research is expected to further investigate the techniques’ effects.

Background Chronic systemic inflammation has been positively associated with structural and functional brain changes representing early markers of Alzheimer’s Disease (AD) and cognitive decline. The current study examined associations between systemic inflammation and cognitive performance among African-Americans and Whites urban adults. Methods Participants were selected from the Healthy Aging in Neighborhoods of Diversity across the Life Span (HANDLS) study (2004–2013, baseline age: 30–64 y, mean ± SD follow-up time of 4.64 ± 0.93 y, N = 189–222, k = 1.5–1.7 observations/participant). Cytokines known to be positively linked to AD incidence among others were tested against cross-sectional and longitudinal cognitive function, stratifying by age group (≤50 y vs. >50 y), sex and race. A series of mixed-effects regression models were conducted, adjusting for key confounders. Results Among key findings, IL1β was positively associated with a faster rate of decline on a test of executive functioning, among older adults (age >50 y, γ11 = +2.49 ± 0.89, p = 0.005), while in the total population, IL-6 was linked to a faster decline on a test of verbal memory (γ11 = −0.011 ± 0.004, p = 0.009). Among younger participants, IL-18 was linked to a poorer performance on a test of attention at baseline (age ≤50 y, γ01 = −0.007 ± 0.0025, p = 0.004) though a slower rate of decline with higher IL-18 was detected for a test of psychomotor speed in older adults (age >50 y, γ11 = +0.0010 ± 0.0004, p = 0.008). Finally, among Whites, unlike among African-Americans, IL-6 was associated with a better baseline performance on two tests of verbal and working memory. Conclusions Cytokines were shown to be associated with age-related cognitive decline among middle-aged and older urban adults in an age group and race-specific manner. Further longitudinal studies are needed to replicate our findings and mediation through relevant biological and psychosocial factors need to be studied as well.

Introduction Understanding the role of Medicaid for health centre patients with chronic diseases can aid policymakers in designing and improving programmes to effectively meet the needs of this vulnerable segment of the population. This study compares the number of chronic conditions, health services utilization and access to care between patients with Medicaid coverage and uninsured patients seen at US health centres. Methods We used data from the 2014 Health Center Patient Survey. Measures included number of chronic conditions, number of physician visits, number of prescription drugs used, access to a usual source of care, the receipt of a routine checkup, unmet need for care and unmet need for prescription drugs. We conducted bivariate analyses to determine differences of outcome measures between the Medicaid and uninsured patient groups. Multiple linear and logistic regression models were conducted to test associations of Medicaid and other health-related factors with outcome measures. Results Bivariate results indicated there were no differences between Medicaid and uninsured patients in number of chronic diseases, having a usual source of care and receipt of a routine checkup. Significant differences existed in health services utilization measures and unmet health needs measures. After controlling for confounding factors, the differences in these measures were still apparent. Uninsured status was linked to a reduced physician visit frequency by −3.03 (95% CI: −4.05, −2.00) as compared with Medicaid patients (p Conclusion Despite having comparable needs to Medicaid patients, uninsured patients with chronic conditions continue to have substantial unmet needs for health care services and limited access to the health care system. Health centres serve an important role in eliminating such disparity regardless of insurance status. In addition, Medicaid eligibility may also have a substantial and positive impact on improving health services utilization and access to care among these low-income patients.

Chronic disease burden and its related health risk factors are especially concentrated among the poor. Community health centres reach the nation’s most vulnerable population. This study explored the prevalence, racial/ethnic, and gender disparities of five modifiable health risk factors and the receipt of related counselling and treatment among patients in U.S. federally qualified health centres. The 2014 Health Center Patient Survey was used for this study. We performed a cross-sectional study. Measures included tobacco use, excessive alcohol consumption, obese/overweight, high blood pressure, high blood cholesterol, and five related counselling/treatment measures. Logistic regression models were conducted to examine the multivariable-adjusted putative associations of several sociodemographic and health-related factors with modifiable health risk and counselling/treatment measures. Preliminary findings revealed differences in modifiable health risk factors across different racial/ethnic groups, while few racial/ethnic differences existed in related counselling/treatment measures. In the multivariable-adjusted logistic regression models, these differences in health risk factors were still apparent, while associations between race/ethnicity status and counselling/treatment measures were not detected. Gender was also a predictor for four types of health risk measures and two types of counselling/treatment measures. Health centre patients had high rates of modifiable health risk factors. The rates were different across race/ethnicity groups, and the differences found did not always favour non-Hispanic Whites. However, the findings reveal equitable access to related counselling/treatment service among patients across race/ethnicity groups.

Objective This study applied the vulnerability framework and examined the combined effect of race and income on health insurance coverage in the US. Data source The household component of the US Medical Expenditure Panel Survey (MEPS-HC) of 2017 was used for the study. Study design Logistic regression models were used to estimate the associations between insurance coverage status and vulnerability measure, comparing insured with uninsured or insured for part of the year, insured for part of the year only, and uninsured only, respectively. Data collection/extraction methods We constructed a vulnerability measure that reflects the convergence of predisposing (race/ethnicity), enabling (income), and need (self-perceived health status) attributes of risk. Principal findings While income was a significant predictor of health insurance coverage (a difference of 6.1–7.2% between high- and low-income Americans), race/ethnicity was independently associated with lack of insurance. The combined effect of income and race on insurance coverage was devastating as low-income minorities with bad health had 68% less odds of being insured than high-income Whites with good health. Conclusion Results of the study could assist policymakers in targeting limited resources on subpopulations likely most in need of assistance for insurance coverage. Policymakers should target insurance coverage for the most vulnerable subpopulation, i.e., those who have low income and poor health as well as are racial/ethnic minorities.

Complex processes appear to link sleep duration and quality with dietary patterns. Numerous studies show healthful benefits of the Dietary Approaches to Stop Hypertension (DASH) diet, but few have examined its association with sleep duration or quality. The current study tested cross-sectional associations of DASH diet quality score with sleep quality among adults. Analyses of participants were from the 2005&ndash, 2008 wave of the National Health and Nutrition Examination Surveys (n = 3941 adults &ge, 30 years of age, complete data). We performed sex- and age group-stratified multiple OLS regression analyses with DASH total score and components as main predictors and sleep quality as main outcomes, adjusting sequentially for socio-demographic, behavioral and health-related factors. Sex and age differences in associations of DASH with sleep quality, adjusting for covariates, were also examined by incorporating two-way interaction terms between sex/age and the DASH score in each unstratified model. We found that the DASH diet score was inversely related to poor sleep-related daytime dysfunction adjusted by age, sex, demographic and socio-economic factors. Some sex-specific associations were detected between DASH diet component scores and sleep quality. Notably, the potassium DASH component was inversely associated with Factor 1 (&ldquo, sleepiness and sleep disturbance&rdquo, ) among women. The fiber DASH component was associated with better sleep quality and inversely related to Factor 2 (&ldquo, sleep-related daytime dysfunction&rdquo, ) in younger subjects. This study indicates health benefits of the DASH diet for sleep duration and quality. Future longitudinal studies and randomized placebo-controlled trials are required to ascertain protective effects.

Background Optimal cancer care entails coordination among multiple providers and continued follow-up and surveillance over time. The patient-centered care brings opportunities to improve the delivery of cancer care. The adoption of patient-centered oncology care (PCOC) is in its infancy. Evidence synthesis on the model's effectiveness is scant. Purposes This is the first systemic review and meta-analysis on associations of PCOC with cancer patients' adverse health care utilization, cost, patient satisfaction, and quality of care. Methods Our study was guided by the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyses) framework. Quality appraisal was performed using Downs and Black's quality checklist. Study-level effect sizes of adverse health care utilization were computed using Cohen's d and summarized using forest plots. Funnel plots were constructed to examine publication bias. Results Of 334 studies that were reviewed, 10 met eligibility criteria and were included into the final analysis. Many included studies implemented almost all six of patient-centered care core attributes, plus three additional attributes that specifically addressed cancer patients' needs, including triage pathways, standardized and evidence-based symptom management, as well as support patient navigation. PCOC patients had lower utilization of inpatient care (standardized means difference [SMD] = -0.027, p = .049). Overall positive effect of PCOC on emergency department use was small and not significant (SMD = -0.023, p = .103). With regard to cost and quality of care, our narrative summaries showed an overall positive direction, though we found limitations in individual study quality that precluded a meta-analysis. Public implication The results showed that it is possible to utilize patient-centered model to support best practice of cancer care. Early evidence shows that the PCOC model has potential to improve health care utilization, cost, and quality of care, but limited numbers of included articles and heterogeneity of those studies implied that more rigorous research is expected to further investigate the model's effects.

The self-adaptive traffic signal control system serves as an effective measure for relieving urban traffic congestion. The system is capable of adjusting the signal timing parameters in real time according to the seasonal changes and short-term fluctuation of traffic demand, resulting in improvement of the efficiency of traffic operation on urban road networks. The development of information technologies on computing science, autonomous driving, vehicle-to-vehicle, and mobile Internet has created a sufficient abundance of acquisition means for traffic data. Great improvements for data acquisition include the increase of available amount of holographic data, available data types, and accuracy. The article investigates the development of commonly used self-adaptive signal control systems in the world, their technical characteristics, the current research status of self-adaptive control methods, and the signal control methods for heterogeneous traffic flow composed of connected vehicles and autonomous vehicles. Finally, the article concluded that signal control based on multiagent reinforcement learning is a kind of closed-loop feedback adaptive control method, which outperforms many counterparts in terms of real-time characteristic, accuracy, and self-learning and therefore will be an important research focus of control method in future due to the property of “model-free” and “self-learning” that well accommodates the abundance of traffic information data. Besides, it will also provide an entry point and technical support for the development of Vehicle-to-X systems, Internet of vehicles, and autonomous driving industries. Therefore, the related achievements of the adaptive control system for the future traffic environment have extremely broad application prospects.

Background Despite economic growth and improved health outcomes over the past few decades, China still experiences striking urban-rural health inequalities. Urban and rural residents distinguished by the hukou system may experience profound disparities because of institutional effect. The aim of this study is to estimate trends in urban-rural disparities in self-care, outpatient care, and inpatient care utilization from a perspective of the hukou system. Methods Data were extracted from the seven latest waves of the China Health and Nutrition Survey (CHNS). We used the hukou system to distinguish between urban and rural residents. Chi-square tests were performed to examine urban-rural gaps in self-care, outpatient care, and inpatient care utilization. Multinomial logistic regression was employed to confirm these disparities and to explore whether the urban-rural gaps have narrowed or widened from 1993 to 2011 once known determinants of utilization are taken into account according to Andersen/Aday’s Health Behaviour Model. Results The urban-rural disparities were evident after controlling for confounding variables: urban adults were 3.24 (p

Objectives (1) To evaluate the relationship between Patient-centered Medical Home (PCMH) recognition and quality of clinical care among health centers, and (2) to determine whether the duration of recognition is positively associated with cumulative quality improvement over time. Methods Data came from the 2012 to 2015 Uniform Data System, health centers' PCMH recognition status, and the Area Resource File. Health center was the unit of observation. The outcome variables included 11 measures of clinical quality. We pooled all years of data and modeled longitudinal data with generalized estimating equations to examine the degree of improvement in health care quality in health centers with and without PCMH recognition over the years 2012-2015. Results Health centers with PCMH recognition generally performed better on clinical quality measures than health centers that did not have PCMH recognition for all years studied. After accounting for health center and county-level potential confounders, health centers with longer periods of PCMH recognition were more likely to have improved their clinical quality on 9 of 11 measures, than health centers with fewer years of PCMH recognition. Conclusions Health centers' length of time with PCMH recognition was positively associated with additive quality improvement. Adoption of the PCMH model of care may serve as a strategy to enhance quality of primary care services.

Background In 2016, the tiered healthcare model featuring “specialists + general practitioners + health managers” in Xiamen was recognized by the Medical Reform Office of State Council and was promoted as a model to replace hospital-centric care with community-based care. This study evaluated the impact of the Xiamen's tiered healthcare system reform on health outcomes and healthcare spending among chronic disease patients. Methods Data were derived from Xiamen's electronic health record (EHR) and medical claims systems. The sample included 154,651 individuals with hypertension and 50,722 individuals with diabetes from Xiamen between 2012 and 2016. The dependent variables included rates of disease under control and total treatment costs. Patients were grouped by the types of chronic disease management: precision management, regular management, or without management. Kaplan-Meier, Cox survival analysis and PSM + DID method (Propensity score matching and difference-in-difference method) were used to compare the management outcomes by group. Findings The precision management group showed better clinical quality performance than the regular management group. Under-control disease rates in the precision management group showed a continuous improvement trend, while the regular management group showed a ceiling effect after ten months. Under-control rates in the precision management group increased over 40% for hypertension and over 30% for diabetes, higher than that increases found in the regular management group. Reform was also associated with consistent reductions in annual per capita total treatment costs across groups. The cost-savings in the precision management group between 2014 and 2016 was 381 Chinese yuan (CNY) for hypertension and 1117 CNY for diabetes, compared with the group without management. Interpretation The results in this study demonstrated the associations between tiered healthcare system reform and better clinical quality performance and improved treatment cost-saving. Developing methods to promote the policy and increase implementation are also important aspects of healthcare reform.

Aortic stenosis (AS) is the third most prevalent cardiovascular disease following hypertension and coronary artery disease. The primary objective of this cross-sectional study is to examine gender, racial, and socioeconomic disparities in AS-related health care utilization in patients aged ≥50 years using data from the Healthcare Cost and Utilization Project Nationwide Inpatient Sample. AS was identified among inpatient discharges with International Classification of Diseases, Ninth Revision, Clinical Modification, code 424.1. Using stratum-specific weighted totals, means, proportions, and regression models, we examined time trends and disparities for inhospital AS prevalence according to gender, race, and income over the 2002 to 2012 period, predictors of AS (gender, race, income, age, health insurance, co-morbidities, and hospital-level characteristics), and AS’s role as a predictor of inhospital death, length of stay, and total charges. Inhospital AS prevalence increased from 2.10% in 2002 to 2.37% in 2012, with similar trends observed within gender, race, and income strata. Women were less likely to have AS compared with men (adjusted odds ratio [ORadj] 0.84; 95% confidence interval [CI] 0.83 to 0.86). Blacks (ORadj 0.68; 95% CI 0.66 to 0.71), Hispanics (ORadj 0.79; 95% CI 0.76 to 0.84), and Asians/Pacific Islanders (ORadj 0.68; 95% CI 0.64 to 0.74) were less likely than whites to have AS diagnosis that was directly associated with income. AS was inversely related to inhospital death but positively linked to total charges overall and longer hospital stays among men, whites, and middle-income patients. However, shorter stays with AS were observed among blacks. In conclusion, among older inpatients, AS prevalence was ~2% and was higher among males, whites, and higher income groups. Although inhospital death was lower and total charges were higher in AS, length of stay’s association with AS varied by gender, race, and income.

Introduction America's community health centers (HCs) are uniquely poised to implement the patient-centered medical home (PCMH) model, as they are effective in providing comprehensive, accessible, and continuous primary care. This study aims to evaluate the relationship between PCMH recognition in HCs and clinical performance. Methods Data for this study came from the 2012 Uniform Data System (UDS) as well as a survey of HCs' PCMH recognition achievement. The dependent variables included all 16 measures of clinical performance collected through UDS. Control measures included HC patient, provider, and practice characteristics. Bivariate analyses and multiple logistic regressions were conducted to compare clinical performance between HCs with and without PCMH recognition. Findings Health centers that receive PCMH recognition generally performed better on clinical measures than HCs without PCMH recognition. After controlling for HC patient, provider, and practice characteristics, HCs with PCMH recognition reported significantly better performance on asthma-related pharmacologic therapy, diabetes control, pap testing, prenatal care, and tobacco cessation intervention. Conclusion This study establishes a positive association between PCMH recognition and clinical performance in HCs. If borne out in future longitudinal studies, policy makers and practices should advance the PCMH model as a strategy to further enhance the quality of primary care.

Background In 2009, China unveiled an ambitious national health care reform program, with the goal of providing equitable and affordable basic health care for everyone. This study was intended to partially fill the knowledge gap in understanding of the demand-side impact on health care utilization and affordability among older people in Zhejiang and Gansu provinces of China. Methods We used two waves of data from the pilot survey of CHARLS implemented in 2008 and 2012. Chi-square tests and t tests were performed to examine whether out-of-pocket (OOP) and pharmaceutical spending (PS), as a share of total health expenditures (THEs), have significantly changed following the health reform. Two-part model was employed to confirm these changes after controlling for confounding variables. All analyses were weighted and clustered the standard errors. Results After controlling for confounding variables, older people in 2012 were 2.1 and 6.8% more likely to use outpatient and inpatient care than they did in 2008, respectively. Among those who have at least one outpatient visit, declines of OOP-to- THEs and PS-to-THEs percentage significantly reduced 0.998 (p

Objectives/Background: Systemic inflammation can affect cognitive performance over time. The current study examined associations between systemic inflammation and cognitive performance among African Americans and Whites urban adults, stratifying by sex, and age group and by race.Patients/Methods: Among 1,555–1,719 White and African-American urban adults [Agebase: 30–64y, 2004-2013, mean±SD follow-up time(y): 4.64 ± 0.93y], conducted linear mixed-effects regression models were conducted to test associations of inflammatory markers [C-reactive protein, Erythrocyte Sedimentation Rate (ESR), albumin, iron, and an inflammation composite score (ICS)] with longitudinal cognitive performance.Results: Among key findings, CRP was linked to poorer baseline mental status among younger women (≤50y, γ01 = –0.03 ± 0.01, p = 0.002) and poorer attention in older women (>50y, γ01 = −0.024 ± 0.007, p < 0.004) and African-Americans (γ01 = −0.029 ± 0.008, p < 0.001). ESR was related to faster decline on verbal memory among older men (>50y, γ11 = −0.008 ± 0.003, P = 0.009); with poorer performance on attention tests overall (γ01 = −0.010 ± 0.003, P = 0.003) and among African-Americans (γ01 = −0.013 ± 0.004, P = 0.002); on verbal fluency among older women (>50y,γ01 = −0.037 ± 0.013, P = 0.004) and on executive function: overall (γ01 = +0.62 ± 0.21, P = 0.004), older men (>50y, γ01 = +1.69 ± 0.53, P = 0.001) and African-Americans (γ01 = +0.84 ± 0.28, P = 0.002). Albumin was linked to slower attention decline among older men (>50y, γ11 = +0.329 ± 0.103, P = 0.009), over-time improvement in executive function overall (γ11 = −6.00 ± 2.26, P = 0.008), and better baseline psychomotor speed among African-Americans (γ01 = +0.56 ± 0.19, P = 0.003). Finally, ICS predicted faster decline on visual memory/visuo-constructive abilities among older men (>50y, γ11 = +0.17 ± 0.06, p = 0.003).Conclusion: In sum, strong associations between systemic inflammation and longitudinal cognitive performance were detected, largely among older individuals (>50y) and African-Americans. Randomized trials targeting inflammation are warranted.

Inguinal hernia repair is a common general surgery procedure with low morbidity. However, postoperative urinary retention (PUR) occurs in up to 22% of patients, resulting in further extraneous treatments.This single institution series investigates whether patient comorbidities, surgical approaches, and anesthesia methods are associated with developing PUR after inguinal hernia repairs. This is a single institution retrospective review of inguinal hernia from 2012 to 2015. PUR was defined as patients without a postoperative urinary catheter who subsequently required bladder decompression due to an inability to void. Univariate and multivariate logistic regressions were performed to quantify the associations between patient, surgical, and anesthetic factors with PUR. Stratification analysis was conducted at age of 50 years. 445 patients were included (42.9% laparoscopic and 57.1% open). Overall rate of PUR was 11.2% (12% laparoscopic, 10.6% open, and p = 0.64). In univariate analysis, PUR was significantly associated with patient age >50 and history of benign prostatic hyperplasia (BPH). Risk stratification for age >50 revealed in this cohort a 2.49 times increased PUR risk with lack of intraoperative bladder decompression (p = 0.013). At our institution, we found that patient age, history of BPH, and bilateral repair were associated with PUR after inguinal hernia repair. No association was found with PUR and laparoscopic vs open approach. Older males may be at higher risk without intraoperative bladder decompression, and therefore, catheter placement should be considered in this population, regardless of surgical approach.

The implementation of speed guidance and signal priority control to reduce delays of bus transit vehicles at signalized intersections is of practical and theoretical significance. In this paper, we propose a speed guidance and signal priority control method for bus transit at single intersections. Based on traffic signal priority theory and dynamic speed guidance theory, a single bus strategy of signal priority and guidance is developed and modeled to enhance bus punctuality and maximize the average passenger revenue of bus transit and other road users. The bus state can be estimated by the bus state determination model. If a bus will be late, the bus speed guidance model works. Due to the maximum velocity and red time, the speed guidance may lose efficiency, which means that the signal priority model should be used to optimize the signal timing. Finally, a numerical simulation of a representative signalized intersection was conducted in VISSIM. The results indicate that compared with the existing signal control method, the proposed method reduces the average passenger delay by 11.67% to 23.88%. The proposed approach is highly promising and can be applied to improve the efficiency and safety of bus transit at signalized intersections.

This study examined access to care and satisfaction among health center patients with chronic conditions. Data for this study were obtained from the 2009 Health Center Patient Survey. Dependent variables of interest included 5 measures of access to and satisfaction with care, whereas the main independent variable was number of chronic conditions. Results of bivariate analysis and multiple logistic regressions showed that patients with chronic conditions had significantly higher odds of reporting access barriers than those without chronic conditions. Our results suggested that additional efforts and resources are necessary to address the needs of health center patients with chronic conditions.

Objective/Background: We examined the rates, predictors, and outcomes [mortality risk (MR), length of stay (LOS), and total charges (TC)] of sleep disturbances in older hospitalized patients. Patients/Methods: Using the U.S. Nationwide Inpatient Sample database (2002–2012), older patients (≥60 years) were selected and rates of insomnia, obstructive sleep apnea (OSA) and other sleep disturbances (OSD) were estimated using ICD-9CM. TC, adjusted for inflation, was of primary interest, while MR and LOS were secondary outcomes. Multivariable regression analyses were conducted. Results: Of 35,258,031 older adults, 263,865 (0.75%) had insomnia, 750,851 (2.13%) OSA and 21,814 (0.06%) OSD. Insomnia rates increased significantly (0.27% in 2002 to 1.29 in 2012, P-trend < 0.001), with a similar trend observed for OSA (1.47 in 2006 to 5.01 in 2012, P-trend < 0.001). TC (2012 $) for insomnia-related hospital admission increased over time from $22,250 in 2002 to $31,527 in 2012, and increased similarly for OSA and OSD; while LOS and MR both decreased. Women with any sleep disturbance had lower MR and TC than men, while Whites had consistently higher odds of insomnia, OSA, and OSD than older Blacks and Hispanics. Co-morbidities such as depression, cardiovascular risk factors, and neurological disorders steadily increased over time in patients with sleep disturbances. Conclusion: TC increased over time in patients with sleep disturbances while LOS and MR decreased. Further, research should focus on identifying the mechanisms that explain the association between increasing sleep disturbance rates and expenditures within hospital settings and the potential hospital expenditures of unrecognized sleep disturbances in the elderly.

Background In China, most people tend to use hospitals rather than health centers for their primary care generally due to the perception that quality of care provided in the hospital setting is superior to that provided at the health centers. No studies have been conducted in China to compare the quality of primary care provided at different health care settings. The purpose of this study is to compare the quality of primary care provided in different types of health care facilities in China. Methods A cross-sectional survey with patients was conducted in Guangdong province of China, using the validated Chinese Primary Care Assessment Tool (PCAT). ANOVA was performed to compare the overall and 10 domains of primary care quality for patients in tertiary, secondary, and primary health care settings. Multivariate analyses were used to assess the association between types of facility and quality of primary care attributes while controlling for sociodemographic and health care characteristics. Results The final number of respondents was 864 including 161 from county hospitals, 190 from rural community health centers (CHCs), 164 from tertiary hospitals, 80 from secondary hospitals, and 269 from urban CHCs. Type of health care facilities was significantly associated with total PCAT score and domain scores. CHC was associated with higher total PCAT score and scores for first contact-access, ongoing care, comprehensiveness-services available, and community orientation than secondary and/or tertiary hospitals, after controlling for patients’ demographic and health characteristics. Higher PCAT score was associated with greater satisfaction with primary care received. CHC patients were more likely to report satisfactory experiences compared to patients from secondary and tertiary facilities. Conclusions The study demonstrated that CHCs provided better quality primary care when compared with secondary and tertiary health care facilities, justifying CHCs as a model of primary care delivery. Electronic supplementary material The online version of this article (doi:10.1186/s12913-016-1604-2) contains supplementary material, which is available to authorized users.

INTRODUCTION Racial and ethnic disparities exist in diabetes prevalence, access to diabetes care, diabetes-related complications and mortality rates, and the quality of diabetes care among Americans. We explored racial and ethnic disparities in primary care quality among Americans with type 2 diabetes. METHODS We analyzed data on adults with type 2 diabetes derived from the household component of the 2012 Medical Expenditure Panel Survey. Multiple regression and multivariate logistic regressions were used to examine the association between race/ethnicity and primary care attributes related to first contact, longitudinality, comprehensiveness, and coordination, and clusters of confounding factors were added sequentially. RESULTS Preliminary findings indicated differences in primary care quality between racial/ethnic minorities and whites across measures of first contact, longitudinality, comprehensiveness, and coordination. After controlling for confounding factors, these differences were no longer apparent; all racial/ethnic categories showed similar rates of primary care quality according to the 4 primary care domains of interest in the study. CONCLUSION Results indicate equitable primary care quality for type 2 diabetes patients across 4 key domains of primary care after controlling for socioeconomic characteristics. Additional research is necessary to support these findings, particularly when considering smaller racial/ethnic groups and investigating outcomes related to diabetes.

Background This study explored insurance-related disparities in primary care quality among Americans with type 2 diabetes. Methods Data came from the household component of the 2012 Medical Expenditure Panel Survey (MEPS). Analysis focused on adult subjects with type 2 diabetes. Logistic regressions were performed to investigate the associations between insurance status and primary care attributes related to first contact, longitudinality, comprehensiveness, and coordination, while controlling for confounding factors. Results Preliminary findings revealed differences among three insurance groups in the first contact domain of primary care quality. After controlling for confounding factors, these differences were no longer apparent, with all insurance groups reporting similar primary care quality according to the four domains of interest in the study. There were significant differences in socioeconomic status among different insurance groups. Conclusion This study reveals equitable primary care quality for diabetes patients despite their health insurance status. In addition to insurance-related differences, the other socioeconomic stratification factors are assumed to be the root cause of disparities in care. This research emphasizes the crucial role that primary care plays in the accessibility and quality of care for chronically ill patients. Policy makers should continue their commitment to reduce gaps in insurance coverage and improve access as well as quality of diabetic care.

Objective To assess patient satisfaction with outpatient and inpatient care between primary care providers and secondary/tertiary hospitals, and to examine its association with socio-demographic characteristics and type of institution, based on self-reported survey data. Design Cross-sectional survey. Setting Healthcare facilities within Jilin province, China. Participants In total, 993 outpatients and 925 inpatients aged ≥15 years old were recruited. Main Outcome Measures Patient satisfaction with the care experience. Results Patient satisfaction with outpatient and inpatient care was significantly associated with type of healthcare delivery setting in Jilin, China. Seeking outpatient care from community health centers (CHCs) was significantly associated with a higher ratio of patient satisfaction. Patients of county and tertiary hospitals complained about long-waiting times, bad attitudes of health workers, high expense of treatment, and their overall satisfaction towards outpatient care was lower. In the terms of inpatient care, patients were more satisfied with treatment expense in CHCs compared with county hospitals. Conclusions CHCs and hospitals face different challenges regarding patient satisfaction. Further healthcare reform in China need to adopt more measures (e.g. increasing quality of primary care, setting up a referral medical system etc.) to improve patient satisfaction.

Objective To characterise the geographic and spatiotemporal distribution of confirmed tuberculosis (TB) cases in Beijing between 2005 and 2009. Design The yearly notification rate maps were used to describe the distribution of confirmed adult TB patients. Spatial autocorrelation (Moran's I) and hot-spot analysis were adopted to detect the clusters and hot spots of TB. Results The TB incidence rate (cases per 100,000 population) in Beijing increased from 29.8 in 2005 to 35.0 in 2009. The incidence rate was significantly higher in the Urban Development New District and the Ecologic Reservation Development District (>30/100,000) than in the other districts. There was a significant spatial autocorrelation throughout the city (u = 2.58, P = 0.01). Evident clusters were observed in the Capital Functional Core District and the Urban Function Extension District (G(i)* > 1). Conclusion Spatial autocorrelation and hot-spot analysis may serve as efficient tools to detect space-time clusters and geospatial hot spots of TB incidence. Between 2005 and 2009, TB incidence in Beijing showed population density and mobility-dependent and eco-social status-dependent space-time clusters and geospatial hot spots.

Background In 2009, China launched its new round of health care reform. One of its priorities was to strengthen primary care and establish a family practice system. Objective This study examined the relationship between use of family practice physician for primary care and the quality of primary care. Methods Eight health care organizations were sampled from three cities in Guangdong Province, China. One thousand six hundred and forty five patients of age 18 and older who visited one of the study sites as their usual source of primary care were systematically selected and surveyed using Johns Hopkins China-validated Primary Care Assessment Tool (PCAT). Analyses were performed to compare the quality of primary care experienced between patients who contracted for family practice services and those who did not. Results Total PCAT score as well as scores in first contact-access, continuity, comprehensiveness and coordination domains were higher among patients who contracted with family practice services, compared to those who did not. In addition, patients who sought care through family practice services reported greater satisfaction with their care experience. Conclusion This study provided evidence that family practice has the potential to provide higher-quality primary care, which may encourage patients to seek family practice physicians for their primary care needs, and help family practitioners better perform gatekeeping functions.

Objective This study examined the impact of an Integrated Care Delivery intervention on health care seeking and outcomes for chronically-ill patients in Henan province, China. Methods A case-control study was carried out in six health care organizations from two counties in Henan province, China. 371 patients aged 50 years or over with hypertension or diabetes who visited either community health centers or hospitals in the Intervention or Control Counties were systematically selected and surveyed on health care seeking behavior, quality of care, and pathway of care for their major chronic condition. Bivariate analyses were performed to compare quality and value of care indicators between patients from the Intervention and Control Counties. Multivariate analyses were used to confirm these associations after controlling for patients’ demographic and health characteristics. Results Patients in both the Intervention and Control Counties chose their current health care providers primarily out of concern for quality of care (provider expertise and adequate medical equipment) and patient-centered care. Compared with the patients from the Control County, those from the Intervention County performed significantly better on almost all the quality and value of care indicators even after controlling for patients’ demographic and health characteristics. Significant associations between types of health care facilities and quality as well as value of care were also observed. Conclusion The study showed that the Integrated Care Delivery Model was critical in guiding patients’ health care seeking behavior and associated with improved accessibility, continuity, coordination and comprehensiveness of care, as well as reducing health inequities and mitigating disparities for older patients with chronic conditions.

Objective Reform of the health care system in urban areas of China has prompted concerns about the utilization of Community Health Centers (CHC). This study examined which of the dominant primary care delivery models, i.e., the public CHC model, the ‘gate-keeper’ CHC model, or the hospital-owned CHC models, was most effective in enhancing access to and quality of care for patients with chronic illness. Methods The case-comparison design was used to study nine health care organizations in Guangzhou, Dongguan, and Shenzhen cities within Guangdong province, China. 560 patients aged 50 or over with hypertension or diabetes who visited either CHCs or hospitals in these three cities were surveyed by using face-to-face interviews. Bivariate analyses were performed to compare quality and value of care indicators among subjects from the three cities. Multivariate analyses were used to assess the association between type of primary care delivery and quality as well as value of chronic care after controlling for patients’ demographic and health status characteristics. Results Patients from all three cities chose their current health care providers primarily out of concern for quality of care (both provider expertise and adequate medical equipment), patient-centered care, and insurance plan requirement. Compared with patients from Guangzhou, those from Dongguan performed significantly better on most quality and value of care indicators. Most of these indicators remained significantly better even after controlling for patients' demographic and health status characteristics. The Shenzhen model (hospital-owned and -managed CHC) was generally effective in enhancing accessibility and continuity. However, coordination suffered due to seemingly duplicating primary care outpatients at the hospital setting. Significant associations between types of health care facilities and quality of care were also observed such that patients from CHCs were more likely to be satisfied with traveling time and follow-up care by their providers. Conclusion The study suggested that the Dongguan model (based on insurance mandate and using family practice physicians as ‘gate-keepers’) seemed to work best in terms of improving access and quality for patients with chronic conditions. The study suggested adequately funded and well-organized primary care system can play a gatekeeping role and has the potential to provide a reasonable level of care to patients.

This article investigates the associations between the patient-centered care (PCC) and receipt of preventive services among older adults with chronic diseases. Data were derived from the nationally representative Medical Expenditure Panel Survey. The full-year consolidated data files from 2009 to 2013 were pooled to yield a final analytic sample (N = 16 654). Study outcomes included the receipt of 7 types of preventive screenings and 2 types of health education services. Patients’ PCC groups were categorized as PCC, partial PCC, and non-PCC, based on 9 questions classified under the 3 distinctive attributes of PCC—whole-person care, patient engagement, and enhanced access to care. Prevalence rates for each outcome variable were calculated. We estimated odds ratios from multiple logistic regressions, comparing the likelihood of outcome variables across 3 groups of patients. Adjusting for covariates, the PCC group was more likely than the non-PCC group to receive 8 types of preventive services. The partial PCC group had a greater likelihood than the non-PCC group of receiving 7 types of preventive services. Our study reveals significant associations between PCC and receipt of preventive services. PCC has demonstrated the potential to improve preventive care for older adults with chronic diseases.