Investigating changes in IQ scores over a decade in Brazil: factors at play.

Purpose: This study aimed to determine whether the factors underlying potential differences between two birth cohorts, born in 1982 and 1993, influence the changes in IQ over time.

Methods: Data from two Brazilian birth cohorts were used (1993 and 1982 Pelotas Birth Cohorts). The IQ scores were assessed using the WAIS-III test.

Mediating effect of eating pattern on the relationship between television exposure and caries in children.

Behavioral characteristics may also take part in the etiology of dental caries. Sedentary behavior, especially watching television, is associated with increased intake of foods high in fat or free sugar, which could influence the occurrence of dental caries. The aim of this study was to assess the mediating effect of eating pattern on the relationship between television exposure time and the presence of dental caries in children.

Early Sugar Introduction Associated with Early Childhood Caries Occurrence.

Consensus has yet to be reached on the impact of early sugar introduction on early childhood dental caries (ECC). This study aimed to evaluate the association between the time of introduction of sugar in the infant's diet and ECC at 48 months, using data from the 2015 Pelotas Birth Cohort Study. This cohort comprises 4,275 children.

Periodontitis Is Associated with Consumption of Processed and Ultra-Processed Foods: Findings from a Population-Based Study.

The association between periodontitis and lifestyle factors has been widely investigated. However, an association between periodontitis and dietary patterns has not been explored. Therefore, this study investigated the association between periodontitis and food consumption among a Southern Brazil population.

Socioeconomic status and body mass index life course models: the 1993 Pelotas (Brazil) birth cohort.

This article aims to assess the relationship between an individual's socioeconomic status over their life-course and their body mass index (BMI) at 22 years of age, according to the hypotheses generated by risk accumulation, critical period, and social mobility models. This was a population-based prospective study based on the Pelotas (Brazil) 1993 birth cohort. The risk accumulation, critical period, and social mobility models were tested in relation to a saturated model and compared with a partial F-test.

Common Mental Disorders and Contemporary Factors: 1982 Birth Cohort.

Objective: To describe the association between common mental disorders and socio-demographic variables, smoking habits and stressful events among the 30-year-old members of a 1982 cohort.

Method: Mental disorder was analyzed by the Self-Reporting Questionnaire (SRQ-20). Poisson regression was used to analyze the unadjusted and adjusted associations.

People living with HIV/AIDS: body image and its important associations with mental health and BMI.

Patients on antiretroviral therapy face new challenges, such as bodily changes. We conducted a cross-sectional study with people living with HIV/AIDS. We investigate the self-perception of body image and its associations.

Emotional and behavioral problems: a school-based study in southern Brazil.

Introduction: Mental health assessment in childhood needs to be carried out within a broader context that includes different factors.

Objective: To assess the prevalence of emotional and behavioral problems in schoolchildren and associated factors.

Method: A cross-sectional study was conducted with a school-based sample at 20 schools selected by systematic random sampling.

Association of breastfeeding, maternal anthropometry and body composition in women at 30 years of age.

This study aimed at assessing the association of breastfeeding with maternal body mass index (BMI), waist circumference, fat mass index, fat free mass index, android/gynoid fat ratio and bone mineral density. In 1982, the maternity hospitals in Pelotas, Rio Grande do Sul State, Brazil, were daily visited and all live births were identified and examined. These subjects underwent follow-up for several times.

Biological Rhythm Disruption Associated with Obesity in School Children.

Background: Biological rhythm is the daily metabolic cycle of mammals that involves the sleep-wake cycles, hormone release, eating habits and digestion, body temperature, and other important bodily functions that are repeated daily. Thus, greater difficulty in maintaining the circadian rhythms may be involved in the increased risk of obesity. This study assessed the association between biological rhythm disruption and childhood obesity among school children.

Effect of aquatic exercise on mental health, functional autonomy, and oxidative dysfunction in hypertensive adults.

The aquatic exercise is an effective non-pharmacological therapy for prevention and control of hypertension. The objective of the present study was to investigate the effect of aquatic exercise on mental health, functional autonomy, and oxidative dysfunction in hypertensive adults. Methodologically 29 adults (mean age 53 ± 7.

Adolescence and Later Life Disease Burden: Quantifying the Contribution of Adolescent Tobacco Initiation From Longitudinal Cohorts.

Purpose: Adolescence is a time of initiation of behaviors leading to noncommunicable diseases (NCDs). We use tobacco to illustrate a novel method for assessing the contribution of adolescence to later burden.

Methods: Data on initiation of regular smoking during adolescence (10-19 years) and current adult smoking were obtained from the 1958 British Birth Cohort, the U.

Caesarean section and adiposity at 6, 18 and 30 years of age: results from three Pelotas (Brazil) birth cohorts.

Background: Association between caesarian section (C-section) and obesity is controversial and mostly based on body mass index (BMI), which has inherent limitations. Using direct estimates of body fat mass, we aimed to assess the association between C-section and adiposity using fat mass index and BMI z-score in three birth cohort studies from Pelotas, Brazil.

Methods: We measured weight, height and fat mass (using dual X-ray absorptiometry (DXA)) at ages 6, 18 and 30 years among participants in the 2004, 1993 and 1982 population-based Pelotas Birth Cohort Studies, respectively.

Associations of Linear Growth and Relative Weight Gain in Early Life with Human Capital at 30 Years of Age.

Objective: To assess the associations of birthweight, nutritional status and growth in childhood with IQ, years of schooling, and monthly income at 30 years of age.

Study Design: In 1982, the 5 maternity hospitals in Pelotas, Brazil, were visited daily and 5914 live births were identified. At 30 years of age, 3701 subjects were interviewed.

Aging, neurocognitive impairment and adherence to antiretroviral therapy in human immunodeficiency virus-infected individuals.

Background/objective: There is an increasing number of older patients with human immunodeficiency virus infection due to the success of antiretroviral therapy, the improved prognosis and life expectancy of patients, and the higher number of new infections among older individuals. The main objective of the present study was to compare the characteristics of older human immunodeficiency virus patients with those of younger patients.

Materials And Methods: We conducted a cross-sectional study with human immunodeficiency virus-infected patients who were treated at the Specialized Care Service (Serviço de Assistência Especializada) for human immunodeficiency virus/AIDS in the city of Pelotas, South Brazil.

[Social impact of literacy in the household: analysis of the association with smoking in illiterate co-residents in Brazil].

Objective To investigate the social impact of literacy on the smoking behavior of illiterate individuals who share the household with literate individuals. Method This cross-sectional study employed data from the 2008 Brazilian National Household Survey (Pesquisa Nacional por Amostra de Domicílios, PNAD). Smokers were defined as individuals reporting use of any tobacco product daily or less than daily.

Genomic ancestry and the social pathways leading to major depression in adulthood: the mediating effect of socioeconomic position and discrimination.

Background: Evidence suggests that there is an association between ethnicity/skin color and depression; however, many contextual and individual variables, like sense of discrimination and socioeconomic position (SEP), might influence the direction of this association. We assessed the association between African ancestry and major depression among young adults that have been followed-up since birth in a Southern Brazilian city, and the mediating effect of SEP and discrimination.

Methods: In 1982, all hospital deliveries in Pelotas (Southern Brazil) were identified; liveborns were examined and their mothers interviewed (n = 5914).

Design of a digital and self-reported food frequency questionnaire to estimate food consumption in adolescents and young adults: birth cohorts at Pelotas, Rio Grande do Sul, Brazil.

Purpose: Methodological paper aiming to describe the development of a digital and self-reported food frequency questionnaire (FFQ), created to the 1982 and 1993 Pelotas Birth Cohorts.

Methods: The instrument was created based on FFQs previously applied to subjects belonging to both cohorts in the 2004 and 2008 follow-ups. The FFQ was developed including 88 foods and/or meals where frequencies were clustered from a minimum of never or once/month to a maximum of greater than or equal to 5 times/day.

[Evolution of overweight and obesity into adulthood, Pelotas, Rio Grande do Sul State, Brazil, 1982-2012].

This study assessed the prevalence of overweight and obesity in adolescence and adulthood among subjects enrolled in the 1982 Pelotas Birth Cohort, Rio Grande do Sul State, Brazil, according to social and demographic characteristics. In 1982, hospital births in Pelotas were identified and all live born infants (n = 5,914) were examined and have been followed since. The data were collected at 15, 18, 23, and 30 years of age.