Screen use and sleep duration and quality at 15 years old: Cohort study.

Objective/background: The evidence on the association between screen use and sleep of adolescents is mainly based on studies about time watching television, with a few examining time using computers, videogames, and mobile devices. Our aim was to investigate the association between screen time for entertainment (watching TV, using computer, or playing games on tablets, smartphones, or videogame consoles) and sleep duration and self-reported sleep quality, among adolescents aged 15 years.

Methods: With data from the 2004 Pelotas Birth Cohort, sleep duration was assessed with questions extracted from the Munich Chronotype Questionnaire and quality was self-reported.

Impact of covid-19 pandemic over depressive symptoms among mothers from a population-based birth cohort in southern brazil.

Purpose: Our aim was to assess the impact of COVID-19 on depressive symptoms among mothers from a population-based birth cohort in Pelotas, Southern Brazil.

Methods: A subgroup of mothers from the Pelotas 2004 Birth Cohort was assessed pre-pandemic (November,2019 to March,2020) and mid-pandemic (August-December,2021). In both follow-ups, depressive symptoms were assessed using the Edinburgh Postnatal Depression Scale (EPDS).

Breastfeeding Duration and Exclusivity Among Early-Term and Full-Term Infants: A Cohort Study.

Background: As compared to full-term infants (39-41 weeks of gestation), early-term infants (37-38 wk) are at increased risk of adverse outcomes, including shorter exclusive breastfeeding (EB) duration and continued breastfeeding.

Objectives: To compare early-term with full- and late-term infants regarding the prevalence of EB at 3 mo and any breastfeeding at 12 mo.

Methods: Data sets from two population-based birth cohorts conducted in the city of Pelotas, Brazil, were combined.

Sleep characteristics and excessive daytime sleepiness in adolescents and adults: results from the birth cohorts of three Brazilian cities - RPS Consortium.

Objective: To describe the prevalence of insufficient sleep duration, long sleep latency, terminal or maintenance insomnia, subjective sleep quality, and excessive daytime sleepiness among participants of birth cohorts conducted in three Brazilian cities, and to evaluate differences in prevalence rates within cohorts according to sociodemographic characteristics.

Methods: Cross-sectional analyses involving adolescents and adults participating in four birth cohorts conducted in Ribeirão Preto (RP78 and RP94), Pelotas (PEL93) and São Luís (SL97/98). Sleep duration, latency, terminal or maintenance insomnia, and subjective sleep quality were obtained through the Pittsburgh Sleep Quality Index; and excessive daytime sleepiness was assessed using the Epworth Sleepiness Scale.

A WhatsApp-Based Intervention to Improve Maternal Social Support and Maternal-Child Health in Southern Brazil: The Text-Message Intervention to Enhance Social Support (TIES) Feasibility Study.

Participatory learning and action cycles with women's groups have been recommended by the WHO to promote maternal and newborn health, but few studies have tested its feasibility and acceptability in mobile health (mHealth) interventions among mothers of toddlers. This was a mixed-method feasibility assessment of an 8-week WhatsApp-based maternal support group for mothers of toddlers (12-18 months of age) enrolled in a birth cohort study in Southern Brazil. Daily messages and weekly activities were sent by moderators to promote maternal-child outcomes: child nutrition, child sleep, nurturing care, and maternal psychosocial well-being (assessed pre- and post-intervention via self-reported questionnaire).

Maternal mental health before and during the COVID-19 pandemic in the 2019 Rio Grande birth cohort.

Objective: To describe and compare measures of maternal depression, anxiety, and posttraumatic stress symptoms before and during the coronavirus disease 2019 (COVID-19) pandemic in a Brazilian birth cohort.

Methods: All hospital births occurring in the municipality of Rio Grande (southern Brazil) during 2019 were identified. Mothers were invited to complete a standardized questionnaire on sociodemographic and health-related characteristics.

Maternal intention to breastfeed, duration of breastfeeding and reasons for weaning: a cohort study, Pelotas, RS, Brazil, 2014.

Objective: to evaluate maternal intention to breastfeed, duration of breastfeeding up to 24 months-of-age and reasons for weaning in the first year of life.

Methods: this was a cohort study conducted in Pelotas, RS, Brazil, with participants from the Multi-Center Body Composition Study; a life table was used to analyze duration of breastfeeding.

Results: of the 1377 mothers screened, 74.

Maternal perinatal depression and infant sleep problems at 1 year of age: Subjective and actigraphy data from a population-based birth cohort study.

This study used data from 2,222 mothers and infants participating in a population-based birth cohort to verify whether maternal depression in the perinatal period was associated with poor infant sleep. Mothers who scored ≥13 points on the Edinburgh Postnatal Depression Scale at 16-24 weeks of gestation and/or 3 months after delivery were considered perinatally depressed. The main outcome variable was poor infant sleep at 12 months of age, defined as >3 night wakings, nocturnal wakefulness >1 hr or total sleep duration <9 hr.

Validity of the Brief Infant Sleep Questionnaire (BISQ) in Brazilian children.

Objective: To investigate the validity of the Brief Infant Sleep Questionnaire (BISQ), in assessing sleep quality in childhood.

Methods: This was a validation study with children from the Pelotas 2015 Birth Cohort. BISQ was applied to mothers when their children were 3, 6, 12, and 24 months of age.

Is social jetlag similar to travel-induced jetlag? Results of a validation study.

Social jetlag (SJL) is defined as the misalignment between the biological clocks and the social clock imposed by work and social constraints. In order to accomplish the workdays duties, people tend to not respect the internally sleep-wake cycle during the week, often using alarm clock to wake-up, which would lead to a chronic form of travel-induced jetlag. This circadian misalignment has been found to be associated with increased health risk and health-impairing behaviors.

Effect of Parental Counseling on Infants' Healthy Sleep Habits in Brazil: A Randomized Clinical Trial.

Importance: Poor sleep during early childhood is associated with adverse outcomes, including obesity, cognitive impairment, and mental and behavioral disorders.

Objective: To assess the efficacy of an educational intervention in the promotion of nighttime sleep duration.

Design, Setting, And Participants: This single-blind, intent-to-treat randomized clinical trial included participants in Pelotas, Brazil, aged 3 months who were followed up until age 24 months.

The Role of Sleep Duration and Sleep Problems During Childhood in the Development of ADHD in Adolescence: Findings From a Population-Based Birth Cohort.

We aimed to investigate the association between sleep in early life and ADHD in adolescence. As a secondary analysis, we tested whether the associations may be specific to ADHD. Data from 3,467 participants of the 2004 Pelotas Birth Cohort were used.

Maternal depression symptoms and use of child health-care services at The Pelotas 2004 Birth Cohort.

Objective: To investigate the influence of maternal depression on child health-care services utilization.

Methodology: Data from The Pelotas 2004 Birth Cohort collected at birth and at 12- and 24-month follow-ups were used. Four outcomes occurring in the second year of life were investigated: number of well-baby visits, number of medical appointments, number of visits to emergency rooms, and number of hospitalizations.

Dietary patterns and attention deficit/hyperactivity disorder (ADHD): A systematic review and meta-analysis.

Background: The Attention Deficit Hyperactivity Disorder (ADHD) is a neurobiological disorder characterized by persistent symptoms of inattention, impulsivity and hyperactivity. The diet during childhood has been investigated as a factor potentially involved in the ADHD etiology.

Objective: To review systematically the evidence of the association between dietary patterns and ADHD.

Is intrauterine exposure to acetaminophen associated with emotional and hyperactivity problems during childhood? Findings from the 2004 Pelotas birth cohort.

Background: Longitudinal studies have consistently reported that prenatal exposure to acetaminophen can to lead to an increased risk of attention deficit-hyperactivity disorder during childhood. This study aimed to investigate the association between intrauterine exposure to acetaminophen and the presence of emotional and behavioral problems at the ages of 6 and 11 years in a low-middle income country.

Methods: We performed a prospective longitudinal population-based study using data from the 2004 Pelotas birth cohort.

Sugar consumption and attention-deficit/hyperactivity disorder (ADHD): A birth cohort study.

Background: Attention-deficit/hyperactivity disorder (ADHD) is characterized by persistent symptoms of lack of attention, impulsivity and hyperactivity. The association between nutritional exposures and ADHD has been investigated and some studies have identified adverse effects from higher intake of sugar. The objective of the present study was to evaluate the association between change in sugar consumption between 6 and 11 years of age and incidence of attention-deficit/hyperactivity disorder (ADHD).

Epidemiology of smoking in the rural area of a medium-sized city in Southern Brazil.

Objective: To estimate the prevalence of smoking and associated factors among rural residents.

Methods: This is a population-based, cross-sectional study of 1,519 individuals carried out in 2016. We randomly selected 24 of the 50 census tracts that make up the eight rural districts of the city of Pelotas, State of Rio Grande do Sul, Brazil.

Interventions to reduce accidents in childhood: a systematic review.

Objective: To review the literature on interventions planned to prevent the incidence of injuries in childhood.

Source Of Data: The PubMed, Web of Science, and Bireme databases were searched by two independent reviewers, employing the single terms accidents, accident, injuries, injury, clinical trial, intervention, educational intervention, and multiple interventions, and their combinations, present in the article title or abstract, with no limits except period of publication (2006-2016) and studies in human subjects.

Synthesis Of Data: Initially, 11,097 titles were located.

Consumption of ultra-processed foods and body fat during childhood and adolescence: a systematic review.

Objective: To review the available literature on the association between consumption of ultra-processed foods and body fat during childhood and adolescence.

Design: A systematic review was conducted in the PubMed, Web of Science and LILACS databases. Studies that evaluated the association between consumption of ultra-processed food (exposure) and body fat (outcome) during childhood and adolescence were eligible.

Caffeine consumption during pregnancy and ADHD at the age of 11 years: a birth cohort study.

Objective: Studies evaluating caffeine intake during pregnancy and long-term outcomes, such as the child's neurobehaviour, are still scarce and their results are inconsistent. The objective of the present study was to evaluate the association between maternal consumption of caffeine during pregnancy and attention deficit hyperactivity disorder (ADHD) at the age of 11 years.

Methodology: All children born in the city of Pelotas, Brazil, during the year 2004, were selected for a cohort study.

Infant sleep hygiene counseling (sleep trial): protocol of a randomized controlled trial.

Background: Sleep problems in childhood have been found to be associated with memory and learning impairments, irritability, difficulties in mood modulation, attention and behavioral problems, hyperactivity and impulsivity. Short sleep duration has been found to be associated with overweight and obesity in childhood. This paper describes the protocol of a behavioral intervention planned to promote healthier sleep in infants.