35 results on '"Hallal, Pedro C."'
Search Results
2. Influence of Guideline Operationalization on Youth Activity Prevalence in the International Children's Accelerometry Database
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Gammon, Catherine, Atkin, Andrew J, Corder, Kirsten, Ekelund, Ulf, Hansen, Bjørge Herman, Sherar, Lauren B, Andersen, Lars Bo, Anderssen, Sigmund, Davey, Rachel, Hallal, Pedro C, Jago, Russell, Kriemler, Susi, Kristensen, Peter Lund, Kwon, Soyang, Northstone, Kate, Pate, Russell, Salmon, JO, Sardinha, Luis B, VAN Sluijs, Esther MF, INTERNATIONAL CHILDREN’S ACCELEROMETRY DATABASE (ICAD) COLLABORATORS, Van Sluijs, Esther [0000-0001-9141-9082], and Apollo - University of Cambridge Repository
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Cross-Sectional Studies ,Adolescent ,Accelerometry ,Prevalence ,Humans ,Sedentary Behavior ,Child ,Exercise - Abstract
INTRODUCTION: The United Kingdom and World Health Organization recently changed their youth physical activity (PA) guidelines from 60 min of moderate- to vigorous-intensity PA (MVPA) every day, to an average of 60 min of MVPA per day, over a week. The changes are based on expert opinion due to insufficient evidence comparing health outcomes associated with different guideline definitions. This study used the International Children's Accelerometry Database to compare approaches to calculating youth PA compliance and associations with health indicators. METHODS: Cross-sectional accelerometer data (n = 21,612, 5-18 yr) were used to examine compliance with four guideline definitions: daily method (DM; ≥60 min MVPA every day), average method (AM; average of ≥60 min MVPA per day), AM5 (AM compliance and ≥5 min of vigorous PA [VPA] on ≥3 d), and AM15 (AM compliance and ≥15 min VPA on ≥3 d). Associations between compliance and health indicators were examined for all definitions. RESULTS: Compliance varied from 5.3% (DM) to 29.9% (AM). Associations between compliance and health indicators were similar for AM, AM5, and AM15. For example, compliance with AM, AM5, and AM15 was associated with a lower BMI z-score (statistics are coefficient [95% CI]): AM (-0.28 [-0.33 to -0.23]), AM5 (-0.28 [-0.33 to -0.23], and AM15 (-0.30 [-0.35 to -0.25]). Associations between compliance and health indicators for DM were similar/weaker, possibly reflecting fewer DM-compliant participants with health data and lower variability in exposure/outcome data. CONCLUSIONS: Youth completing 60 min of MVPA every day do not experience superior health benefits to youth completing an average of 60 min of MVPA per day. Guidelines should encourage youth to achieve an average of 60 min of MVPA per day. Different guideline definitions affect inactivity prevalence estimates; this must be considered when analyzing data and comparing studies.
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- 2022
3. Birth weight, cardiometabolic risk factors and effect modification of physical activity in children and adolescents: pooled data from 12 international studies
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Bernhardsen, Guro Pauck, Stensrud, Trine, Hansen, Bjørge Herman, Steene-Johannesen, Jostein, Kolle, Elin, Nystad, Wenche, Anderssen, Sigmund Alfred, Hallal, Pedro C, Janz, Kathleen F, Kriemler, Susi, Andersen, Lars Bo, Northstone, Kate, Resaland, Geir Kåre, Sardinha, Luis B, Van Sluijs, Esther MF, Ried-Larsen, Mathias, Ekelund, Ulf, International Children’s Accelerometry Database (ICAD) Collaborators, van Sluijs, Esther MF [0000-0001-9141-9082], Ekelund, Ulf [0000-0003-2115-9267], and Apollo - University of Cambridge Repository
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Adolescent ,Norway ,education ,Cholesterol, HDL ,Cardiometabolic Risk Factors ,Blood Pressure ,Birth Weight ,Humans ,Waist Circumference ,Child ,human activities ,Exercise ,Triglycerides ,Adiposity - Abstract
OBJECTIVES: Low and high birth weight is associated with higher levels of cardiometabolic risk factors and adiposity in children and adolescents, and increases the risk of cardiovascular diseases, obesity, and early mortality later in life. Moderate-to-vigorous physical activity (MVPA) is associated with lower cardiometabolic risk factors and may mitigate the detrimental consequences of high or low birth weight. Thus, we examined whether MVPA modified the associations between birth weight and cardiometabolic risk factors in children and adolescents. METHODS: We used pooled individual data from 12 cohort- or cross-sectional studies including 9,100 children and adolescents. Birth weight was measured at birth or maternally reported retrospectively. Device-measured physical activity (PA) and cardiometabolic risk factors were measured in childhood or adolescence. We tested for associations between birth weight, MVPA, and cardiometabolic risk factors using multilevel linear regression, including study as a random factor. We tested for interaction between birth weight and MVPA by introducing the interaction term in the models (birth weight x MVPA). RESULTS: Most of the associations between birth weight (kg) and cardiometabolic risk factors were not modified by MVPA (min/day), except between birth weight and waist circumference (cm) in children (p = 0.005) and HDL-cholesterol (mmol/l) in adolescents (p = 0.040). Sensitivity analyses suggested that some of the associations were modified by VPA, i.e., the associations between birth weight and diastolic blood pressure (mmHg) in children (p = 0.009) and LDL- cholesterol (mmol/l) (p = 0.009) and triglycerides (mmol/l) in adolescents (p = 0.028). CONCLUSION: MVPA appears not to consistently modify the associations between low birth weight and cardiometabolic risk. In contrast, MVPA may mitigate the association between higher birth weight and higher waist circumference in children. MVPA is consistently associated with a lower cardiometabolic risk across the birth weight spectrum. Optimal prenatal growth and subsequent PA are both important in relation to cardiometabolic health in children and adolescents.
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- 2020
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4. Physical Activity at 11 Years of Age and Incidence of Mental Health Problems in Adolescence: Prospective Study.
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Hallal, Pedro C., Martínez-Mesa, Jeovany, Coll, Carolina V. N., Mielke, Grégore I., Mendes, Márcio A., Peixoto, Márcio B., Munhoz, Tiago N., Ramires, VirgilioV., Assunção, Maria Cecilia, Gonçalves, Helen, and Menezes, Ana M. B.
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MENTAL health of teenagers ,PHYSICAL activity ,DISEASE incidence ,HEALTH behavior research ,EPIDEMIOLOGICAL research - Abstract
Aim: To evaluate the longitudinal association between physical activity behavior at 11 years of age and the incidence of mental health problems from 11 to 15 years of age. Methods: Individuals born in the city of Pelotas, Brazil, in 1993 have been followed up since birth. At 11 and 15 years of age, mental health was assessed using the Strengths and Difficulties Questionnaire (SDQ). At 11 years of age, physical activity was assessed through a validated questionnaire. The continuous SDQ score at 15 years was used as the outcome variable. The main exposure was physical activity behavior at 11 years of age divided into 3 categories (0, 1-299, ≥300 min/wk). Results: The incidence of mental health problems from 11 to 15 years was 13.6% (95% CI, 12.4-14.9). At 11 years, 35.2% of the adolescents achieved 300 min/wk of physical activity. In the unadjusted analysis, physical activity was inversely related to mental health problems (P = .04). After adjustment for confounders, the association was no longer significant in the whole sample but was still significant among boys. Conclusion: Physical activity appears to be inversely related to mental health problems in adolescence, but the magnitude of the association is weak to moderate. [ABSTRACT FROM AUTHOR]
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- 2015
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5. Socioeconomic trajectory from birth to adolescence and lung function: prospective birth cohort study
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Martínez-Mesa Jeovany, Wehrmeister Fernando C, Noal Ricardo B, Perez-Padilla Rogélio, Dumith Samuel C, Menezes Ana MB, Araújo Cora LP, and Hallal Pedro C
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Spirometry ,socioeconomic factors ,adolescent ,cohort studies ,developing countries ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Socioeconomic status (SES) has been shown to be an important contributor to lung function. The aim of this study was to evaluate the association between lung function in adolescence and (a) SES at birth; (b) SES in adolescence; (c) SES trajectory from birth to adolescence ('never poor', 'non poor-poor', 'poor-non poor' and 'always poor'). Additionally, we investigate the role of adolescent and parental variables at mediating these associations. Methods Prospective birth cohort study in Pelotas, Brazil, including 4,005 adolescents (mean age: 14.7 years) followed up from birth. Lung function was measured by spirometry. Outcome variables were forced expiratory volume in one second in liters (FEV1) and forced vital capacity also in liters (FVC). Results Mean FEV1 was 3.46 L (95%CI 3.43-3.49) among boys and 2.93 L (95%CI 2.91-2.95) among girls. Mean FVC was 4.00 L (95%CI 3.97; 4.04) among boys and 3.30 L (95%CI 3.27; 3.32) among girls. SES at birth, in adolescence and its trajectory from birth to adolescence were inversely associated with lung function in both adolescent boys and girls. After adjustment for mediating variables, coefficients were largely reduced, particularly among boys, and the main predictor of change in coefficients was the inclusion of height in the models. Conclusion Low income adolescents from Brazil present impaired lung function as compared to the better off, and this is largely explained by height.
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- 2011
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6. COVID-19 and social distancing among children and adolescents in Brazil.
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Barros, Fernando C., Hartwig, Fernando P., Barros, Aluísio J. D., Menezes, Ana M. B., Horta, Bernardo L., Struchiner, Cláudio J., Paulo Vidaletti, Luis, Silveira, Mariangela F., Mesenburg, Marilia A., Delagostin, Odir A., Hallal, Pedro C., and Victora, Cesar G.
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OBJECTIVE: To estimate the prevalence of SARS-CoV-2 antibodies and the adherence to measures of social distancing in children and adolescents studied in three national surveys conducted in Brazil between May–June 2020. METHODS: Three national serological surveys were conducted in 133 sentinel cities located in all 27 Federative Units. Multistage probability sampling was used to select 250 individuals per city. The total sample size in age ranges 0–9 and 10–19 years old are of 4,263 and 8,024 individuals, respectively. Information on children or adolescents was gathered with a data collection app, and a rapid point-of-case test for SARS-CoV-2 was conducted on a finger prick blood sample. RESULTS: The adjusted prevalence of antibodies was 2.9% (2.2–3.6) among children 0–9 years, 2.2% (1.8–2.6) among adolescents 10-19 years, and 3.0% (2.7–3.3) among adults 20+years. Prevalence of antibodies was higher among poor children and adolescents compared to those of rich families. Adherence to social distancing measures was seen in 72.4% (71.9–73.8) of families with children, 60.8% (59.6–61.9) for adolescents, and 57.4% (56.9–57.8) for adults. For not leaving the house except for essential matters the proportions were 81.7% (80.5–82.9), 70.6% (69.6–61.9), and 65.1% (64.7–65.5), respectively. Among children and adolescents, social distancing was strongly associated with socioeconomic status, being much higher in the better-off families. CONCLUSIONS: The prevalence of antibodies against SARS-CoV-2 showed comparable levels among children, adolescents, and adults. Adherence to social distancing measures was more prevalent in children, followed by adolescents. There were important socioeconomic differences in the adherence to social distancing among children and adolescents. [ABSTRACT FROM AUTHOR]
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- 2021
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7. Age-related patterns of vigorous-intensity physical activity in youth: The International Children's Accelerometry Database
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Corder, Kirsten, Sharp, Stephen J, Atkin, Andrew J, Andersen, Lars B, Cardon, Greet, Page, Angie, Davey, Rachel, Grøntved, Anders, Hallal, Pedro C, Janz, Kathleen F, Kordas, Katarzyna, Kriemler, Susi, Puder, Jardena J, Sardinha, Luis B, Ekelund, Ulf, Van Sluijs, Esther MF, International Children's Accelerometry Database (ICAD) Collaborators, Corder, Kirsten [0000-0002-2744-3501], Sharp, Stephen [0000-0003-2375-1440], Atkin, Andrew [0000-0002-3819-3448], Van Sluijs, Esther [0000-0001-9141-9082], and Apollo - University of Cambridge Repository
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ICAD ,Adolescent ,Epidemiology ,food and beverages ,Child ,Motor activity - Abstract
Physical activity declines during youth but most evidence reports on combined moderate and vigorous-intensity physical activity. We investigated how vigorous-intensity activity varies with age. Cross-sectional data from 24,025 participants (5.0-18.0 y; from 20 studies in 10 countries obtained 2008-2010) providing ≥ 1 day accelerometer data (International Children's Accelerometry Database (ICAD)). Linear regression was used to investigate age-related patterns in vigorous-intensity activity; models included age (exposure), adjustments for monitor wear-time and study. Moderate-intensity activity was examined for comparison. Interactions were used to investigate whether the age/vigorous-activity association differed by sex, weight status, ethnicity, maternal education and region. A 6.9% (95% CI 6.2, 7.5) relative reduction in mean vigorous-intensity activity with every year of age was observed; for moderate activity the relative reduction was 6.0% (5.6%, 6.4%). The age-related decrease in vigorous-intensity activity remained after adjustment for moderate activity. A larger age-related decrease in vigorous activity was observed for girls (- 10.7%) versus boys (- 2.9%), non-white (- 12.9% to - 9.4%) versus white individuals (- 6.1%), lowest maternal education (high school (- 2.0%)) versus college/university (ns) and for overweight/obese (- 6.1%) versus healthy-weight participants (- 8.1%). In addition to larger annual decreases in vigorous-intensity activity, overweight/obese individuals, girls and North Americans had comparatively lower average vigorous-intensity activity at 5.0-5.9 y. Age-related declines in vigorous-intensity activity during youth appear relatively greater than those of moderate activity. However, due to a higher baseline, absolute moderate-intensity activity decreases more than vigorous. Overweight/obese individuals, girls, and North Americans appear especially in need of vigorous-intensity activity promotion due to low levels at 5.0-5.9 y and larger negative annual differences.
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- 2016
8. Evidence-based intervention in physical activity:lessons from around the world
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Heath, Gregory W., Parra, Diana C., Sarmiento, Olga, Andersen, Lars Bo, Owen, Neville, Goenka, Shifalika, Montes, Felipe, Brownson, Ross C., Alkandari, Jasem R., Bauman, Adrian, Blair, Steven N., Bull, Fiona C., Craig, Cora L., Ekelund, Ulf, Guthold, Regina, Hallal, Pedro C., Haskell, William L., Inoue, Shigeru, Kahlmeier, Sonja, Katzmarzyk, Peter T., Kohl, Harold W., Lambert, Estelle V., Lee, I. Min, Leetongin, Grit, Lobelo, Felipe, Loos, Ruth J. F., Marcus, Bess, Martin, Brian W., Pratt, Michael, Puska, Pekka, Ogilvie, David, Reis, Rodrigo, Sallis, James F., and Wells, Jonathan C.
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Adult ,Evidence-based practice ,Adolescent ,Cost effectiveness ,Health Behavior ,Psychological intervention ,Poison control ,Motor Activity ,Global Health ,Social Environment ,Article ,Social group ,social environment ,health behavior ,needs assessment ,physical education and training ,Residence Characteristics ,Environmental health ,health education ,Medicine ,Humans ,Child ,Exercise ,Health Education ,child ,Evidence-Based Medicine ,Physical Education and Training ,exercise ,motor activity ,business.industry ,adult ,world health ,Social environment ,Social Support ,General Medicine ,social support ,Public relations ,residence characteristics ,Outreach ,adolescent ,Community health ,World Health ,evidence-based medicine ,business ,Needs Assessment - Abstract
Promotion of physical activity is a priority for health agencies. We searched for reviews of physical activity interventions, published between 2000 and 2011, and identified effective, promising, or emerging interventions from around the world. The informational approaches of community-wide and mass media campaigns, and short physical activity messages targeting key community sites are recommended. Behavioural and social approaches are effective, introducing social support for physical activity within communities and worksites, and school-based strategies that encompass physical education, classroom activities, after-school sports, and active transport. Recommended environmental and policy approaches include creation and improvement of access to places for physical activity with informational outreach activities, community-scale and street-scale urban design and land use, active transport policy and practices, and community-wide policies and planning. Thus, many approaches lead to acceptable increases in physical activity among people of various ages, and from different social groups, countries, and communities.
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- 2012
9. Hospital admissions from birth to early adolescence and early-life risk factors: the 11-year follow-up of the 1993 Pelotas (Brazil) birth cohort study
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Menezes,Ana M. B., Noal,Ricardo B., Cesar,Juraci A., Hallal,Pedro C., Araújo,Cora Luiza, Dumith,Samuel C., Barros,Fernando C., and Victora,Cesar G.
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Hospitalization ,Cohort Studies ,Hospitalização ,Estudos de Coortes ,Adolescent ,Criança ,Child ,Adolescente - Abstract
The aim of this prospective analysis was to describe the cumulative incidence of hospital admissions in the first year of life and between 1 and 11 years of age and to explore associated factors. Hospital admissions were collected through regular monitoring in the first year of life, and through maternal report on admissions between 1 and 11 years. Analyses were stratified by sex and adjusted for confounding factors. 18.1% of children were hospitalized in the first year of life, and 30.7% between ages 1 and 11 years. Among boys, hospital admission in the first year was associated with low family income, paternal smoking during pregnancy, preterm delivery, and low birthweight. Among girls, in addition to the variables described for boys, black/mixed skin color was also a risk factor for hospital admission. For admissions between 1 and 11 years of age, low family income and gestational age > 37 weeks were found to be significant risk factors. Com o objetivo de descrever a incidência cumulativa de hospitalizações no primeiro ano de vida e entre 1-11 anos de idade, e identificar fatores de risco precoces, foi realizado um estudo de coorte de nascimento de 1993 a 2004-2005. As hospitalizações foram coletadas por meio de monitoramento hospitalar até 1 ano de idade, e relato das mães sobre internações ocorridas de 1-11 anos. As análises foram estratificadas por sexo e ajustadas para fatores de confusão. Os percentuais de hospitalizações de 0-1 ano e de 1-11 anos foram 18,1% e 30,7%, respectivamente. As variáveis associadas com internações de 0-1 ano em meninos foram: baixa renda familiar, tabagismo paterno na gestação, prematuridade e baixo peso ao nascer. No sexo feminino, além dos fatores de risco descritos entre os meninos, observou-se associação com cor da pele preta/parda. Quanto às hospitalizações de 1-11 anos, no sexo masculino, encontrou-se associação com baixa renda familiar e idade gestacional > 37 semanas.
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- 2010
10. Experimental use of alcohol in early adolescence: the 11-year follow-up of the 1993 Pelotas (Brazil) birth cohort study
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Noal, Ricardo B., Menezes, Ana M. B., Araújo, Cora Luiza, and Hallal, Pedro C.
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Cohort Studies ,Adolescent ,Alcoholic Beverages ,Estudos de Coorte ,Adolescente ,Bebidas Alcoólicas - Abstract
The aim of this study was to estimate the prevalence of experimental alcohol intake and associated factors in early adolescence. The overall sample consisted of 4,452 adolescents (mean age = 11.3 years; SD = 0.3) from the 1993 birth cohort in Pelotas, Rio Grande do Sul State, Brazil. Experimental use of alcohol was reported by 17.5% of the interviewees (95%CI: 16.3-18.6), and 5% reported having tried alcohol at nine years of age or younger. Prevalence of experimental alcohol use was higher among adolescents whose mothers had consumed alcohol during pregnancy, whose parents consumed alcohol, who worked outside the home themselves, and who had ever tried smoking. Family strife, parental alcohol intake, and adolescent smoking were strong predictors of experimental alcohol use in early adolescence. Special attention should be targeted to these groups in order to avoid heavy and premature alcohol use in early adolescence. Este trabalho teve como objetivo avaliar a prevalência de uso experimental de bebidas alcoólicas e fatores associados no início da adolescência. Compuseram a amostra 4.452 adolescentes (média = 11,3 anos; DP = 0,3) da coorte de nascimentos de 1993 de Pelotas, Rio Grande do Sul, Brasil. O uso experimental de álcool foi referido por 17,5% dos entrevistados (IC95%: 16,3-18,6) e 5% referiram ter experimentado com nove anos ou menos. O risco de uso experimental de álcool foi maior nos adolescentes cujas mães referiram ter bebido na gestação, quando ambos os pais usavam bebidas alcoólicas, entre os adolescentes que trabalhavam fora e naqueles que já experimentaram cigarro ou outras drogas. As relações familiares, o uso de álcool pelos pais, e o tabagismo do adolescente são os fatores fortemente associados ao uso experimental de álcool no início da adolescência. Mais atenção deveria ser dada especialmente a esses grupos, a fim de combater o consumo precoce de álcool.
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- 2010
11. Medicine use among adolescents: the 11-year follow-up of the 1993 Pelotas (Brazil) birth cohort study
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Bertoldi, Andréa D., Tavares, Noemia U. L., Hallal, Pedro C., Araújo, Cora Luiza, and Menezes, Ana M. B.
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Cohort Studies ,Estudos de Coortes ,Pharmaceutical Preparations ,Adolescent ,Medicamentos ,Adolescente - Abstract
The aim of this study was to investigate medicine use and associated factors among adolescents. This was a prospective cohort study including 4,452 adolescents born in Pelotas, Rio Grande do Sul State, Brazil, in 1993. Information on medicine use in the 15 days prior to the interviews was collected from the mothers. Overall prevalence of medicine use was 30.9%, and 64.7% of the medicines had been prescribed by a physician. The most frequently used pharmacological groups were medicines for the nervous (35.9%) and respiratory systems (25.7%). Medicine use was directly associated with socioeconomic status, maternal schooling, complications during pregnancy or delivery, and neonatal problems resulting in the need for intensive care. Underweight and obese adolescents were more likely to use medicines as compared to those with normal body mass index. A direct association was observed between maternal use of hypnotic drugs and sedatives and adolescent medicine use. It is essential to implement educational policies aimed at promoting rational use of medicines by adolescents. O objetivo deste estudo foi investigar o uso de medicamentos e fatores associados em adolescentes. Trata-se de estudo de coorte prospectivo, incluindo 4.452 adolescentes nascidos em Pelotas, Rio Grande do Sul, Brasil, em 1993. As informações sobre o uso de medicamentos pelo adolescente nos 15 dias anteriores à entrevista foram fornecidas pelas mães. A prevalência global de uso de medicamentos foi de 30,9%, sendo que destes, 64,7% foram indicados por médicos. Os grupos farmacológicos mais utilizados foram os medicamentos que atuam nos sistemas nervoso (35,9%) e respiratório (25,7%). O uso de medicamentos esteve diretamente associado ao nível econômico, escolaridade da mãe, intercorrência na gravidez ou parto que gerou doença até a adolescência, problema de saúde no momento do nascimento que levou o recém-nascido à UTI, magreza e obesidade. Foi observada uma relação direta entre uso de medicamentos hipnóticos e sedativos pela mãe e uso de medicamentos pelo adolescente. É fundamental que medidas educativas sejam voltadas à promoção do uso racional de medicamentos nesta faixa etária.
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- 2010
12. Sedentary behavior in adolescents: the 11-year follow-up of the 1993 Pelotas (Brazil) birth cohort study
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Dumith, Samuel C., Hallal, Pedro C., Menezes, Ana M. B., and Araújo, Cora Luiza
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Cohort Studies ,Estudos de Coortes ,Adolescent ,Sedentary Lifestyle ,Estilo de Vida Sedentário ,Adolescente - Abstract
The aim of this study was to estimate the prevalence of sedentary behavior and investigate associated factors in adolescents 11 years of age from the 1993 birth cohort in Pelotas, Rio Grande do Sul State, Brazil. Sedentary behavior was investigated with a questionnaire, and was defined as spending more than two hours per day watching television, playing videogames, or using the computer. Of the 4,452 adolescents interviewed, 98% reported watching television, 44% playing videogames, and 22% using the computer. The average time spent on each of these electronic media was 197, 36, and 17 minutes per day, respectively. Prevalence of sedentary behavior was 79.7% (95%CI: 78.6; 80.9) and showed a positive association with socioeconomic level and nutritional status and a negative association with well-being. These 11-year-olds spent extensive time at TV viewing, videogames, and the computer. Special attention should be given to the most exposed groups of adolescents, including the more affluent, overweight, and those with limited schooling. O objetivo deste estudo foi determinar a prevalência e investigar os fatores associados ao comportamento sedentário em adolescentes de 11 anos, pertencentes à coorte de nascimentos de 1993 de Pelotas, Rio Grande do Sul, Brasil. O comportamento sedentário foi coletado por meio de questionário, e definido como ficar mais de duas horas por dia assistindo à televisão, jogando videogame ou usando computador. Dos 4.452 adolescentes entrevistados, 98% assistiam à televisão, 44% jogavam videogame e 22% usavam computador. O tempo médio na frente de cada um desses meios eletrônicos foi, respectivamente, 197, 36 e 17 minutos por dia. A prevalência de comportamento sedentário foi de 79,7% (IC95%: 78,6; 80,9), e teve uma associação positiva com nível socioeconômico e com estado nutricional, e negativa com a escala de bem-estar. O tempo despendido em atividades como ver televisão, jogar videogame e usar computador foi elevado (média superior a 4 horas/dia). Maior atenção deve ser dada aos grupos mais expostos, tais como adolescentes de classe alta, acima do peso e com menor nível de bem-estar.
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- 2010
13. Predictors of physical activity change during adolescence: a 3·5-year follow-up.
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Dumith, Samuel C, Gigante, Denise P, Domingues, Marlos R, Hallal, Pedro C, Menezes, Ana MB, and Kohl, Harold W
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PHYSICAL activity ,MENARCHE ,OVERWEIGHT women ,COHORT analysis ,SOCIAL status ,WOMEN'S health - Abstract
ObjectiveTo investigate the predictors of change in physical activity (PA) from early to mid adolescence in a cohort of adolescents.DesignProspective, population-based birth cohort study. PA level was evaluated by means of questionnaire, and was analysed in continuous form (min/week) and as a trajectory (inactive–inactive, inactive–active, active–inactive, active–active) based on the cut-off point of 300 min/week.SettingPelotas, a city of 340 000 inhabitants in southern Brazil.SubjectsAdolescents (n 4120) followed from 11 to 15 years of age.ResultsMaternal PA change and more exposure to outdoors were directly associated with a positive change in PA level (min/week) for both genders. Higher maturation status (among boys) and later menarche were also associated with positive PA change in min/week. Predictors to remain inactive were: maternal PA change (inverse association), more exposure to outdoors, higher socio-economic level, fear of living in the neighbourhood and non-overweight girls. Predictors to become inactive were higher socio-economic level among boys and increase in screen time among girls.ConclusionsThe study demonstrates that social, family, biological, behavioural and environmental factors exert an important role in the PA change among youngsters as they move into adolescence. These findings may be relevant to the design of policies and intervention programmes aimed at promoting PA in teenagers. [ABSTRACT FROM PUBLISHER]
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- 2012
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14. Association between health risk behaviors in parents and adolescents in a rural area in southern Brazil.
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de Oliveira Raphaelli, Chirle, Azevedo, Mario Renato, and Hallal, Pedro C.
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Copyright of Cadernos de Saude Publica is the property of Escola Nacional de Saude Publica Sergio Arouca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2011
15. Oral health follow-up studies in the 1993 Pelotas (Brazil) birth cohort study: methodology and principal results.
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Peres, Marco A., Barros, Aluísio Jardim, Peres, Karen Glazer, Araújo, Cora Luiza, Menezes, Ana M. B., Hallal, Pedro C., and Victora, Cesar G.
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Copyright of Cadernos de Saude Publica is the property of Escola Nacional de Saude Publica Sergio Arouca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2010
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16. Hospital admissions from birth to early adolescence and early-life risk factors: the 11-year follow-up of the 1993 Pelotas (Brazil) birth cohort study.
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Menezes, Ana M. B., Noal, Ricardo B., Cesar, Juraci A., Hallal, Pedro C., Araújo, Cora Luiza, Dumith, Samuel C., Barros, Fernando C., and Victora, Cesar G.
- Abstract
Copyright of Cadernos de Saude Publica is the property of Escola Nacional de Saude Publica Sergio Arouca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2010
- Full Text
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17. Concurrent determinants of blood pressure among adolescents: the 11-year follow-up of the 1993 Pelotas (Brazil) birth cohort study.
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Menezes, Ana M. B., Hallal, Pedro C., Araújo, Cora Luiza, Barros, Fernando C., and Victora, Cesar G.
- Abstract
Copyright of Cadernos de Saude Publica is the property of Escola Nacional de Saude Publica Sergio Arouca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
- Full Text
- View/download PDF
18. Resting pulse rate among adolescents: the 11-year follow-up of the 1993 Pelotas (Brazil) birth cohort study.
- Author
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Hallal, Pedro C., Menezes, Ana M. B., Bertoldi, Andréa D., Dumith, Samuel C., and Araújo, Cora Luiza
- Abstract
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- Published
- 2010
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19. Early determinants of attention and hyperactivity problems in adolescents: the 11-year follow-up of the 1993 Pelotas (Brazil) birth cohort study.
- Author
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Anselmi, Luciana, Menezes, Ana M. B., Barros, Fernando C., Hallal, Pedro C., Araújo, Cora Luiza, Domingues, Marlos R., and Rohde, Luis A.
- Abstract
Copyright of Cadernos de Saude Publica is the property of Escola Nacional de Saude Publica Sergio Arouca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
- Full Text
- View/download PDF
20. Self-reporting versus parental reporting of physical activity in adolescents: the 11-year follow-up of the 1993 Pelotas (Brazil) birth cohort study.
- Author
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Reichert, Felipe F., Menezes, Ana M. B., Araújo, Cora Luiza, and Hallal, Pedro C.
- Abstract
Copyright of Cadernos de Saude Publica is the property of Escola Nacional de Saude Publica Sergio Arouca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
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21. Intake of fat and fiber-rich foods according to socioeconomic status: the 11-year follow-up of the 1993 Pelotas (Brazil) birth cohort study.
- Author
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Neutzling, Marilda B., Araújo, Cora Luiza, Vieira, Maria de Fátima A., Hallal, Pedro C., Menezes, Ana M. B., and Victora, Cesar G.
- Abstract
Copyright of Cadernos de Saude Publica is the property of Escola Nacional de Saude Publica Sergio Arouca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
- Full Text
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22. Nutritional status of adolescents: the 11-year follow-up of the 1993 Pelotas (Brazil) birth cohort study.
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Araújo, Cora Luiza, Dumith, Samuel C., Menezes, Ana M. B., Hallal, Pedro C., Vieira, Maria de Fátima A., Madruga, Samanta W., and Victora, Cesar G.
- Abstract
Copyright of Cadernos de Saude Publica is the property of Escola Nacional de Saude Publica Sergio Arouca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
- Full Text
- View/download PDF
23. Well-being in adolescents: the 11-year follow-up of the 1993 Pelotas (Brazil) birth cohort study.
- Author
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Hallal, Pedro C., Dumith, Samuel C., Bertoldi, Andréa D., Scalco, Diogo L., Menezes, Ana M. B., and Araújo, Cora Luiza
- Abstract
Copyright of Cadernos de Saude Publica is the property of Escola Nacional de Saude Publica Sergio Arouca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
- Full Text
- View/download PDF
24. Validade e reprodutibilidade dos instrumentos de medida da atividade física do tipo self-report em adolescentes: uma revisão sistemática.
- Author
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de Farias Júnior, José Cazuza, Lopes, Adair da Silva, Florindo, Alex Antonio, and Hallal, Pedro C.
- Abstract
Copyright of Cadernos de Saude Publica is the property of Escola Nacional de Saude Publica Sergio Arouca and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
- Full Text
- View/download PDF
25. Prevalence and correlates of physical activity among adolescents from Southern Brazil.
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Dumith, Samuel C., Domingues, Marlos R., Gigante, Denise P., Hallal, Pedro C., Menezes, Ana M. B., and Kohl, Harold W.
- Abstract
Copyright of Revista de Saúde Pública is the property of Faculdade de Educacao da Universidade de Sao Paulo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
- Full Text
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26. Fatores socioculturais e nível de atividade física no início da adolescência.
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Gonçalves, Helen, Hallal, Pedro C., Amorim, Tales C., Araújo, Cora L. P., and Menezes, Ana M. B.
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PHYSICAL fitness , *EXERCISE , *TEENAGERS , *SOCIOCULTURAL factors , *LIFESTYLES - Abstract
Objective. To describe the level of physical activity in adolescents born in 1993 in the city of Pelotas, Brazil, and to evaluate the effect of sociocultural variables on those levels. Methods. A combined ethno-epidemiological methodology was employed. In the epidemiological study, 4 452 adolescents born in 1993 were interviewed. Physical ac- tivity level was evaluated by means of a questionnaire. Adolescents with fewer than 300 minutes of physical activity per week were classified as sedentary. The ethrio- graphic study included 69 adolescents randomly selected from among all cohort par- ticipants. On average, three in-depth interviews were carried out (about one every 6 months), with mothers and adolescents being interviewed separately. Results. The prevalence of a sedentary lifestyle was 48.7% (95%CI: 46.5 to 50.8) in boys and 67.5% (95%CI: 65.6 to 69.5) in girls (P < 0.001). The independent variable pre- senting the strongest association with physical activity level was the weekly fre- quency with which the adolescent met friends outside of school. The ethnographic study showed that boys have more social and family support to engage in physical activities in adolescence, but that many parents associate poor school performance with the amount of time spent outside the home. Conclusions. This study suggests that physical activity is often viewed as compet- ing with family values in adolescence. This perspective should be explored in future studies and discussed with families so that physical activity may be adopted as a cul- tural norm. [ABSTRACT FROM AUTHOR]
- Published
- 2007
27. Prenatal and birth predictors of objectively measured physical activity and sedentary time in three population-based birth cohorts in Brazil
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Ding, Ding, Mielke, Gregore I, Silva, Inacio Crochemore M, Wehrmeister, Fernando C, Horta, Bernardo L, Brage, Soren, Hallal, Pedro C, and Ekelund, Ulf
- Subjects
Adult ,Male ,Adolescent ,Child Behavior ,Risk Assessment ,3. Good health ,Socioeconomic Factors ,Risk Factors ,Humans ,Female ,Sedentary Behavior ,Child ,Exercise ,Life Style ,Brazil - Abstract
Physical inactivity is a global pandemic with no signs of improvement. Prolonged sitting time is an emerging risk factor that exacerbates the health consequences of physical inactivity. Both behaviours are influenced by various individual and environmental factors but it remains unknown whether early-life exposures "program" these behaviours in later life. The current evidence is limited by a small number of studies which were primarily conducted in high-income countries, and a narrow range of early-life variables examined. Using data from three population-based Brazilian birth cohorts (analytical samples: n = 2740 for 1982 cohort, aged 30 years; n = 3592 for 1993 cohort, aged 18; n = 2603 for 2004 cohort, aged 6), we show that being female and higher family socioeconomic status at birth are strong and consistent predictors of lower physical activity and higher sedentary time from childhood to adulthood. Meanwhile, higher birth weight and lower birth order may also predict lower physical activity and higher sedentary time. Our findings are distinct from evidence from high-income countries, suggesting the importance of broader socioeconomic context in determining individual's activity patterns through the life- course. Such evidence is essential for understanding the biological etiology and socioeconomic context of physical activity and sedentary behaviour at an early stage in life.
28. Predictors of Body Mass Index Change From 11 to 15 Years of Age: The 1993 Pelotas (Brazil) Birth Cohort Study.
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Assunção, Maria Cecília F., Muniz, Ludmila C., Dumith, Samuel C., Clark, Valerie L., Araújo, Cora L.P., Gonçalves, Helen, Menezes, Ana M.B., and Hallal, Pedro C.
- Abstract
Abstract: Purpose: We explored predictors of nutritional status change from 11 to 15 years of age by analyzing prospective data. Methods: We collected data at 11 and 15 years of age from individuals born in 1993 in Pelotas, Brazil. We assessed nutritional status using body mass index (BMI) for age in z-score according to the World Health Organization 2007 standards. Independent variables collected at 11 years of age were socioeconomic position, adolescent''s perception of own weight, body dissatisfaction, and weight loss dieting. Results: Of the 4,032 adolescents whose nutritional status could be evaluated in the two follow-ups, 93% maintained their nutritional status classification from 11 to 15 years. A total of 102 (2.8%) became obese and 181 (4.5%) ceased to be obese in the 4-year period. The prevalence of obesity decreased from 11 to 15 years of age in both boys and girls. Low-income girls were more likely to become obese from 11 to 15 years of age compared with high-income ones. Among boys, those with high income were more likely to cease being obese compared those with low income. Those who perceived themselves to be obese, who wished to have a smaller silhouette, and who were on diets to lose weight were more likely to become obese or to achieve a normal BMI category at 15 years of age. Conclusions: BMI tracks strongly in early adolescence. This finding suggests that interventions to more effectively change nutritional status should be implemented in childhood and should consider emotional aspects as well as social and biological ones. [Copyright &y& Elsevier]
- Published
- 2012
- Full Text
- View/download PDF
29. Life Course Association of Maternal Smoking During Pregnancy and Offspring's Height: Data From the 1993 Pelotas (Brazil) Birth Cohort.
- Author
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Martínez-Mesa, Jeovany, Menezes, Ana M.B., González, David A., Horta, Bernardo L., Matijasevich, Alicia, Gigante, Denise P., and Hallal, Pedro C.
- Abstract
Abstract: Purpose: To evaluate the effect of (1) maternal smoking during pregnancy; and (2) partner smoking on offspring''s height in infancy, childhood, and adolescence. Methods: All hospital live births from 1993 (5,249) were identified, and these infants were followed up at several ages. Height for age, expressed as z-scores using the World Health Organization growth curves, was measured at all follow-up visits. Maternal smoking during pregnancy was collected retrospectively at birth and analyzed as number of cigarettes/day smoked categorized in four categories (never smoked, <10, 10–19, and ≥20 cigarettes/day). Partner smoking was analyzed as a dichotomous variable (No/Yes). Unadjusted and adjusted analyses were performed by use of linear regression. Results: The prevalence of self-reported maternal smoking during pregnancy was 33.5%. In the crude analysis, the number of cigarettes/day smoked by the mother during pregnancy negatively affected offspring''s height in infancy, childhood, and adolescence. After adjustment for confounders and mediators, this association remained statistically significant, although the magnitude of the regression coefficients was reduced. Paternal smoking was not associated with offspring''s height in the adjusted analyses. Conclusions: In addition to the well-known harmful effects of smoking, maternal smoking during pregnancy negatively affects offspring''s height. Public health policies aimed at continuing to reduce the prevalence of maternal smoking during pregnancy must be encouraged. [Copyright &y& Elsevier]
- Published
- 2012
- Full Text
- View/download PDF
30. Socioeconomic Trajectories From Birth to Adolescence and Risk Factors for Noncommunicable Disease: Prospective Analyses.
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Hallal, Pedro C., Clark, Valerie L., Assunção, Maria Cecilia, Araújo, Cora L.P., Gonçalves, Helen, Menezes, Ana M.B., and Barros, Fernando C.
- Abstract
Abstract: Purpose: To evaluate the associations between family socioeconomic trajectories from 0 to 11 years of age and risk factors for noncommunicable disease at 15 years. Methods: Individuals born in the city of Pelotas, Brazil, in 1993 are part of a birth cohort study. Socioeconomic position, collected at birth and at 11 years of age, was our main exposure. Risk factors for chronic disease were collected at 15 years. Body mass index was transformed into Z score using the World Health Organization standard. Transport and leisure-time physical activity, smoking, and alcohol consumption were assessed by self-report. Blood pressure was measured using a digital sphygmomanometer. Results: Of 5,249 cohort members, 85.7% were located at the 15-year follow-up visit. Rich adolescents were more likely to be overweight, be obese, and not use active modes of transport to school. Poor adolescents were more likely to smoke. In relation to socioeconomic trajectories, the odds of obesity were 46% higher among those who were “always rich” compared with those who were “always poor”; the odds of use of an inactive mode of transportation were 326% greater among the “always rich” than the “always poor,” whereas the reverse was observed for smoking (odds of 200%). The “always rich” had one-half the odds of walking or cycling to school compared with those who became wealthy in the studied period. Conclusions: Adolescent socioeconomic position is a stronger determinant of risk factors for noncommunicable diseases than socioeconomic trajectories. However, trajectories do matter, particularly in terms of use of active transportation to school. [Copyright &y& Elsevier]
- Published
- 2012
- Full Text
- View/download PDF
31. Clustering of risk factors for chronic diseases among adolescents from Southern Brazil
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Dumith, Samuel C., Muniz, Ludmila C., Tassitano, Rafael M., Hallal, Pedro C., and Menezes, Ana M.B.
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CHRONIC disease risk factors , *CHRONIC diseases in adolescence , *REGRESSION analysis , *HEALTH & Nutrition Examination Survey , *SOCIOECONOMIC factors , *COMPARATIVE studies - Abstract
Abstract: Objective: To investigate the clustering of risk behaviors for chronic non-communicable diseases and their associated factors among adolescents from Southern Brazil. Methods: In 2008, a survey was conducted with 3990 adolescents aged 14–15years (mean: 14.3; SD: 0.6) from the 1993 Pelotas Birth Cohort Study. Clustering was determined by comparing observed (O) and expected (E) prevalence of all possible combinations of the four risk factors investigated (smoking, alcohol intake, low fruit intake, and physical inactivity). We carried out Poisson regression to evaluate the effect of individual characteristics on the presence of at least three risk behaviors. Results: All risk factors tended to cluster together (O/E prevalence=3.0), especially smoking and alcohol intake (odds ratio to present on behavior in the presence of other >5.0). Approximately 15% of adolescents displayed three or more risk behaviors. Females (adjusted OR=1.55), people 15years and older (OR=1.47), with black skin color (OR=1.23), and of low socioeconomic level (OR=1.29) were more likely to display three or more risk factors. Conclusion: These findings suggest that lifestyle-related risk factors tend to cluster among adolescents. Identifying subgroups at greater risk of simultaneously engaging in multiple risk behaviors may aid in the planning of preventive strategies. [Copyright &y& Elsevier]
- Published
- 2012
- Full Text
- View/download PDF
32. Prevalência de retenção escolar e fatores associados em adolescentes da coorte de nascimentos de 1993 em Pelotas, Brasil.
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Vieira, Maria de Fátima A., Matijasevich, Alicia, Damiani, Magda F., Madruga, Samanta W., Neutzling, Marilda B., Menezes, Ana M. B., Araújo, Cora L., and Hallal, Pedro C.
- Subjects
- *
SCHOOL dropout prevention , *GRADE levels , *SCHOOL children , *EMPLOYMENT , *TEENAGERS - Abstract
Objective. To evaluate the occurrence of grade retention until 11 years of age and the factors associated with retention. Methods. This prospective study included 4 452 adolescents from the 1993 city of Pelotas birth cohort (state of Rio Grande do Sul, Brazil). This sample represents 87.5% of the original cohort. Grade retention was defined as the repetition of at least one school grade until the date of the interview. The following independent variables were analyzed: sex, skin color, birth weight, ownership of goods, age, maternal schooling, type of school (private, state, or city), age at school entry, and employment. Results. The overall frequency of grade retention was 36.3%, vs. 42.8% for boys and 30.0% for girls. The adjusted analysis showed that the lower the level of maternal schooling, ownership of goods, and birth weight, the higher the risk of grade retention for both boys and girls. Black/brown adolescents, those studying in public schools, and those who were 7 years of age or older at school entry had a higher risk of grade retention. For boys, childhood labor was associated with grade retention. Conclusions. Low socioeconomic and low maternal schooling levels were the factors most strongly associated with grade retention. Strategies to reduce this situation must take into account demographic and socioeconomic characteristics. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
33. Discriminação autorrelatada por adolescentes de uma coorte de nascimentos brasileira: prevalência e associações.
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Gonçalves, Helen, Dumith, Samuel C., González, David Alejandro, Menezes, Ana M. B., Araújo, Cora L. P., Hallal, Pedro C., and Bastos, João Luiz
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- *
SELF-evaluation , *DISCRIMINATION (Sociology) , *DEMOGRAPHIC characteristics , *NUTRITION ,ADOLESCENT psychology research - Abstract
Objective. To evaluate the prevalence of and factors associated with discrimination self-reported by adolescents. Methods. Cross-sectional analysis of adolescents belonging to a cohort of live births in 1993 in the city of Pelotas, Brazil. From the 5 249 members of the cohort, information was collected from 4 452 adolescents in 2004 and 2005 regarding self-reported discrimination, sociodemographic variables, physical attributes, and nutritional status. A Poisson regression was utilized in the raw and adjusted analyses to estimate prevalence rates (RP). Results. The global prevalence of self-reported discrimination was 16.4%. In the adjusted analysis, discrimination was reported more by the following groups: girls (RP = 1.27, 95%CI: 1.10-1.48), people identified by others as black (RP = 1.28, 95%CI: 1.04-1.57), poorer adolescents (RP = 1.58, 95%CI: 1.23-2.02), those who perceived themselves to be very thin or very fat (RP = 1.81 and 1.54 respectively), those whose families had financial trouble (RP = 1.76, 95%CI: 1.49-2.08), those who wore glasses (RP = 1.74, 95%CI: 1.45-2.10), those who thought their teeth looked bad (RP = 1.58, 95%CI: 1.21-2.07), those who had been reprimanded in school (RP = 1.23, 95%CI: 1.01- 1.51), and those who had been involved in fights in the past year (RP = 1.62, 95%CI: 1.36-1.94). The association between discrimination and nutritional status varied by sex (interaction P = 0.009). Thin children reported greater discrimination than those who were overweight or obese. Discrimination on the basis of obesity was higher among girls, with this effect more strongly felt among rich girls than among poor ones. Conclusions. Self-reported discrimination was prevalent and unequally distributed among the population. Actions to reduce experiences of discrimination must be implemented during the initial stages of life. [ABSTRACT FROM AUTHOR]
- Published
- 2012
34. Peso medido, peso percebido e fatores associados em adolescentes.
- Author
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Araújo, Cora L., Dumith, Samuel C., Menezes, Ana Maria B., and Hallal, Pedro C.
- Subjects
- *
BODY weight , *BODY size , *SELF-perception , *TEENAGERS - Abstract
Objective. To compare weight self-perception and nutritional status based on objective measurements of weight, height, and skin folds in adolescents, and to evaluate factors associated with disagreement between these measures. Methods. The sample included the 1993 birth cohort from the city of Pelotas, Brazil, who were interviewed at home in 2004 and 2005. The study outcome resulted from the comparison between nutritional status and the weight self-perception of adolescents, and was divided into three categories: underestimation, agreement, and overestimation. The explanatory variables were sex, skin color, accumulated goods index, physical activity, eating habits, discrimination, dieting, feeling of well-being, and opinion of the adolescent concerning the perception of his/her parents regarding the adolescent's weight. Multivariate logistic regression was used for statistical analysis. Results. A total of 4 452 interviews were conducted (87.5% of original cohort). Mean age was 11 years. The analysis of nutritional status revealed that 7.1% were underweight, 69.8% normal weight, 11.6% overweight, and 11.6% obese. The analysis of self-perceived weight revealed that 19% saw themselves as thin or very thin, 56% believed their weight was normal, and 25% saw themselves as fat or very fat. Global agreement between weight self-perception and nutritional status was 65% (kappa = 0.36). Weight underestimation occurred in 24.9% of boys vs. 20.3% of girls. Overestimation occurred in 15.8% of girls vs. 8.5% of boys. Conclusion. Girls tended to overestimate their weight, and boys, to underestimate it. There was a strong association between the opinion of adolescents concerning their parents' view of the adolescent's body and self-perceived weight. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
35. Religiosidade, consumo de bebidas alcoólicas e tabagismo em adolescentes.
- Author
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Bezerra, Jorge, Gomes Barros, Mauro Virgílio, Marinho Tenório, Maria Cecília, Tassitano, Rafael Miranda, Honda Barros, Simone Storino, and Hallal, Pedro C.
- Subjects
- *
RELIGIOUSNESS , *ALCOHOL drinking , *SMOKING , *HEALTH surveys , *STUDENT health - Abstract
Objective. To analyze the association between religiousness and exposure to alcohol consumption and smoking in adolescence. Methods. The sample included 4 210 high-school students from state schools in Pernambuco, Brazil, selected through two-stage cluster sampling. Information was collected using the Global school-based student health survey (GSHS). Exposure to alcohol consumption and smoking was defined as consumption of either substance at least 1 day in the past 30 days, regardless of intensity. Religious affiliation and practice were analyzed as religiousness-related variables. Results. The prevalence of exposure to alcohol consumption was 30.3% (95%CI: 28.9-31.7). Alcohol consumption was significantly higher in males (38.6%) than females (24.8%). The prevalence of exposure to smoking was 7.8% (IC95%: 7.0-8.7), higher in males (9.8%) than females (6.2%). Crude analyses revealed that regardless of sex, exposure to alcohol consumption and smoking was inversely proportional to religious affiliation or practice. Logistic regression adjustment revealed that the likelihood of reporting exposure to alcohol consumption (OR = 0.71; 95%CI: 0.60-0.83) and smoking (OR = 0.61; 95%CI: 0,46-0,79) was lower in adolescents who reported religious practice, independently of affiliation. Conclusions. The present results suggest that religiousness may act as a modulator for the exposure to alcohol consumption and smoking in adolescence. Further studies should be carried out to analyze how the protective effect of religiousness can be enhanced through health interventions and campaigns. [ABSTRACT FROM AUTHOR]
- Published
- 2009
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