scholarly journals Trends and inequalities in maternal and child health in a Brazilian city: methodology and sociodemographic description of four population-based birth cohort studies, 1982–2015

2019 ◽  
Vol 48 (Supplement_1) ◽  
pp. i4-i15 ◽  
Author(s):  
Andréa Dâmaso Bertoldi ◽  
Fernando C Barros ◽  
Pedro R C Hallal ◽  
Gregore I Mielke ◽  
Paula D Oliveira ◽  
...  
Keyword(s):  
Cohort Studies ◽  
Birth Cohort ◽  
Time Trends ◽  
Family Income ◽  
Skin Colour ◽  
Treated Water ◽  
Household Characteristics ◽  
Maternal Schooling ◽  
Low Middle Income Countries ◽  
Maternity Hospitals

Abstract Background Few low-middle-income countries have data from comparable birth cohort studies spanning over time. We report on the methods used by the Pelotas cohorts (1982, 1993, 2004 and 2015) and describe time trends in sociodemographic characteristics of the participant families. Methods During the four study years, all maternity hospitals in the city were visited daily, and all urban women giving birth were enrolled. Data on socioeconomic and demographic characteristics were collected using standardized questionnaires, including data on maternal and paternal skin colour, age and schooling, maternal marital status, family income and household characteristics. The analyses included comparisons of time trends and of socioeconomic and ethnic group inequalities. Results Despite a near 50% increase in the city’s population between 1982 and 2015, the total number of births declined from 6011 to 4387. The proportion of mothers aged ≥35 years increased from 9.9% to 14.8%, and average maternal schooling from 6.5 [standard deviation (SD) 4.2] to 10.1 (SD 4.0) years. Treated water was available in 95.3% of households in 1982 and 99.3% in 2015. Three-quarters of the families had a refrigerator in 1982, compared with 98.3% in 2015. Absolute income-related inequalities in maternal schooling, household crowding, household appliances and access to treated water were markedly reduced between 1982 and 2015. Maternal skin colour was associated with inequalities in age at childbearing and schooling, as well as with household characteristics. Conclusions During the 33-year period, there were positive changes in social and environmental determinants of health, including income, education, fertility and characteristics of the home environment. Socioeconomic inequality was also reduced.

scholarly journals Time trends in nutrient intake and dietary patterns among five birth cohorts of 70-year-olds examined 1971–2016: results from the Gothenburg H70 birth cohort studies, Sweden

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Jessica Samuelsson ◽  
Elisabet Rothenberg ◽  
Lauren Lissner ◽  
Gabriele Eiben ◽  
Anna Zettergren ◽  
...  
Keyword(s):  
Cohort Studies ◽  
Birth Cohort ◽  
Dietary Patterns ◽  
Time Trends ◽  
Protein Intake ◽  
Nutrient Intake ◽  
Alcohol Intake ◽  
Healthy Ageing ◽  
Birth Cohorts ◽  
Nutrient Density

Abstract Background Nutrition is a key factor in healthy ageing but there are still gaps in knowledge about risk- and protective factors linking diet and healthy ageing. The aim of this study was to investigate time trends in dietary patterns and nutrient intake in an older population, in order to increase the understanding of whether dietary recommendations are followed and if nutrient needs are met. Methods Cross-sectional data was derived from five samples of 70-year-olds examined 1971–72, 1981–83, 1992–93, 2000–02 and 2014–16 from the Gothenburg H70 birth cohort studies in Sweden. A total of 2246 individuals (56% women) participated. Dietary intake was determined by the diet history method, which is an interview including questions on usual frequencies and portion sizes of food intake during the preceding three months. Recommended values of nutrient intake and determinants of healthful dietary patterns were based on the Nordic Nutrition Recommendations 2012. Statistical analyses were performed using general linear models, student’s t-test and chi-square test, stratified by sex. Results The intake of fruits and vegetables, fish and seafood, whole grain products and nuts and seeds increased during the study period (p < 0.0001), among both sexes. However, there was also an increase in alcohol intake (p < 0.0001), especially from wine and beer, and in 2014–16 more than 30% had an alcohol intake above recommendations. Protein intake increased (p < 0.0001 for women and p = 0.0004 for men), and 48% of the women and 37% of the men had a protein intake above recommended 1.2 g/kg body weight and day in 2014–16. The proportion of participants at risk of inadequate intake of vitamins C, D and folate decreased during the study period, among both sexes (p < 0.0001). However, vitamin D intake from diet was still below average requirement level of 7.5 μg/day for 49% of the women and 32% of the men in 2014–16. Conclusions Dietary patterns have changed among 70-year-olds during the past five decades, with an increase in healthful foods and a higher nutrient density in later born birth cohorts. However, the intake of alcohol increased, especially among women. Results from this study can be useful as a basis for dietary guidelines and used for prevention strategies involving older adults in population-based and health care settings.

scholarly journals Association of family income with BMI from childhood to adult life: a birth cohort study

2012 ◽  
Vol 16 (2) ◽  
pp. 233-239 ◽  
Author(s):  
Denise P Gigante ◽  
Cesar G Victora ◽  
Alícia Matijasevich ◽  
Bernardo L Horta ◽  
Fernando C Barros
Keyword(s):  
Cohort Study ◽  
Birth Cohort ◽  
White Women ◽  
Family Income ◽  
Adult Life ◽  
Skin Colour ◽  
Birth Cohort Study ◽  
Adult Women ◽  
Prevalence Of Obesity ◽  
The Relationship

AbstractObjectiveTo investigate the association of family income at birth with BMI among young adults who have been followed since birth.DesignA birth cohort study.SettingIn 1982, all children born in Pelotas, southern Brazil, were included in a perinatal survey and visited at ages 1, 2, 4, 15, 18–19 and 23 years.SubjectsCohort members (n 4297) were traced and interviewed in 2004–2005. In all follow-ups, participants were weighed and measured, and BMI and prevalence of obesity were calculated for each age. Family income was obtained in minimum wages in 1982 and as a continuous variable, in reais, in later follow-ups. Skin colour was self-reported in 2004–2005.ResultsMean BMI and prevalence of obesity differed between males and females. In males, a direct relationship was found throughout life and among females this relationship was modified by age. During childhood, BMI was higher among girls from higher income groups and this association was inversed at age 23 years. At this same age, mean BMI among black women was 1·3 kg/m2 higher than among white women, even after adjustment for current family income.ConclusionsThe findings show in men that the relationship between income and BMI is similar to that seen in less developed areas, whereas among adult women the relationship is similar to that observed in developed countries. In addition to the effect of socio-economic status, skin colour also has an influence on the BMI of adult women.

scholarly journals Life-course socio-economic factors, skin colour and abdominal obesity in adulthood in a Brazilian birth cohort

2009 ◽  
Vol 12 (11) ◽  
pp. 2225-2235 ◽  
Author(s):  
David A González ◽  
Aydin Nazmi ◽  
John S Yudkin ◽  
Cesar G Victora
Keyword(s):  
Black Women ◽  
Life Course ◽  
Birth Cohort ◽  
Abdominal Obesity ◽  
White Women ◽  
Family Income ◽  
Skin Colour ◽  
Birth Cohort Study ◽  
Nutritional Disorder ◽  
Economic Position

AbstractObjectiveObesity is an increasingly prevalent nutritional disorder throughout the world. In particular, abdominal obesity is associated with cardiovascular and metabolic risk. The present study aimed to evaluate the effects of skin colour and life-course socio-economic indicators on waist circumference (WC), hip circumference (HC) and waist:hip ratio (WHR) in young adults.DesignPopulation-based birth cohort study. Individuals born in 1982 in Pelotas (southern Brazil) were visited on a number of occasions from birth to age 23–24 years. A sample of the cohort was sought in 2006 and 972 individuals were located. The analysis was restricted to individuals with complete data available (442 males, 414 females).ResultsIn men, family income at birth and in 2004–5 were positively associated with WC and HC, but not with WHR. Regardless of current income, men born to wealthier families had larger WC and HC as adults. Skin colour was not associated with any of the outcomes. In women, early poverty was associated with smaller HC, and current poverty with larger WC. Poverty at any age thus led to higher WHR. Black women had larger WC and HC than white women, but there were no differences in WHR. All the associations were partially mediated by education and behavioural variables.ConclusionsThe effects of early socio-economic position on WC and HC persist even after adjustment for adult socio-economic position, highlighting the importance of interventions during the first years of life.

scholarly journals Recomposing persons: Scavenging and storytelling in a birth cohort archive

2021 ◽  
pp. 095269512199539
Author(s):  
Penny Tinkler ◽  
Resto Cruz ◽  
Laura Fenton
Keyword(s):  
Life Course ◽  
Cohort Studies ◽  
Birth Cohort ◽  
Quantitative Data ◽  
Population Level ◽  
Relational Embeddedness ◽  
The Life Course ◽  
Over Time

Birth cohort studies can be used not only to generate population-level quantitative data, but also to recompose persons. The crux is how we understand data and persons. Recomposition entails scavenging for various (including unrecognised) data. It foregrounds the perspective and subjectivity of survey participants, but without forgetting the partiality and incompleteness of the accounts that it may generate. Although interested in the singularity of individuals, it attends to the historical and relational embeddedness of personhood. It examines the multiple and complex temporalities that suffuse people’s lives, hence departing from linear notions of the life course. It implies involvement, as well as reflexivity, on the part of researchers. It embraces the heterogeneity and transformations over time of scientific archives and the interpretive possibilities, as well as incompleteness, of birth cohort studies data. Interested in the unfolding of lives over time, it also shines light on meaningful biographical moments.

scholarly journals Work-Family Life Courses and Psychological Distress: Evidence from Three British Birth Cohort Studies

2021 ◽  
pp. 100429
Author(s):  
Anne McMunn ◽  
Rebecca Lacey ◽  
Diana Worts ◽  
Diana Kuh ◽  
Peggy McDonough ◽  
...  
Keyword(s):  
Psychological Distress ◽  
Cohort Studies ◽  
Birth Cohort ◽  
Family Life ◽  
Life Courses ◽  
Work Family

scholarly journals Cognitive Performance and Cerebrospinal Fluid Markers in Preclinical Alzheimer’s Disease: Results from the Gothenburg H70 Birth Cohort Studies

2021 ◽  
Vol 79 (1) ◽  
pp. 225-235
Author(s):  
Maya Arvidsson Rådestig ◽  
Johan Skoog ◽  
Henrik Zetterberg ◽  
Jürgen Kern ◽  
Anna Zettergren ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Cerebrospinal Fluid ◽  
Cohort Studies ◽  
Cognitive Performance ◽  
Birth Cohort ◽  
Population Based ◽  
Tau Pathology ◽  
Preclinical Alzheimer’S Disease ◽  
Preclinical Ad

Background: We have previously shown that older adults with preclinical Alzheimer’s disease (AD) pathology in cerebrospinal fluid (CSF) had slightly worse performance in Mini-Mental State Examination (MMSE) than participants without preclinical AD pathology. Objective: We therefore aimed to compare performance on neurocognitive tests in a population-based sample of 70-year-olds with and without CSF AD pathology. Methods: The sample was derived from the population-based Gothenburg H70 Birth Cohort Studies in Sweden. Participants (n = 316, 70 years old) underwent comprehensive cognitive examinations, and CSF Aβ-42, Aβ-40, T-tau, and P-tau concentrations were measured. Participants were classified according to the ATN system, and according to their Clinical Dementia Rating (CDR) score. Cognitive performance was examined in the CSF amyloid, tau, and neurodegeneration (ATN) categories. Results: Among participants with CDR 0 (n = 259), those with amyloid (A+) and/or tau pathology (T+, N+) showed similar performance on most cognitive tests compared to participants with A-T-N-. Participants with A-T-N+ performed worse in memory (Supra span (p = 0.003), object Delayed (p = 0.042) and Immediate recall (p = 0.033)). Among participants with CDR 0.5 (n = 57), those with amyloid pathology (A+) scored worse in category fluency (p = 0.003). Conclusion: Cognitively normal participants with amyloid and/or tau pathology performed similarly to those without any biomarker evidence of preclinical AD in most cognitive domains, with the exception of slightly poorer memory performance in A-T-N+. Our study suggests that preclinical AD biomarkers are altered before cognitive decline.

Sign in / Sign up

Export Citation Format

Share Document