ABSTRACT
OBJECTIVE: The aim of the study was to analyze gender inequalities in types of physical activity (PA) and in the use of screen-based devices among schoolchildren from both urban and rural areas in Brazil. METHODS: Data from two population-based surveys conducted in 2019 (urban areas: n = 2,479; 52.6% girls; age = 9.2 ± 1.51 years) and 2022 (rural areas: n = 979; 42.6% girls; age = 9.4 ± 1.52 years) were used. PA (active play, nonactive play, home chores, and structured physical activities) and the use of screen-based devices (TV, cellphone, videogame, and computer) were self-reported in a previous-day-recall online questionnaire (Web-CAAFE). Absolute gender inequalities were evaluated and presented as equiplots. Relative gender inequalities were evaluated by the prevalence ratio (PR) and respective 95% confidence intervals (95% CI), which were estimated by Poisson regression, with adjustments for age and BMI z scores. RESULTS: Girls from urban and rural areas presented a lower prevalence of active play and a higher prevalence of home chores. The prevalence of nonactive play among girls from urban areas was also lower; however, their prevalence of structured physical activities was higher, especially among girls aged seven to nine years. Girls in both urban and rural areas presented a higher prevalence of TV viewing and lower use of video games. CONCLUSION: The gender inequalities observed in the types of physical activities and in the use of screen-based devices could be considered potential correlates of the likelihood of girls' and boys' compliance with the physical activity guidelines.
Subject(s)
Gender Equity , Sports , Male , Female , Humans , Child , Brazil , Exercise , Surveys and Questionnaires , Rural PopulationABSTRACT
BACKGROUND: The intake of unhealthy food taken on very regular basis may bring even further negative impact on health if associated with excessive time using of screen-based electronic devices. OBJECTIVE: To estimate the association between the use of different types of screen-based devices and the intake of unhealthy foods amongst children and adolescents and to determine whether daily physical activity (DPA) has a moderating effect on the association. METHODS: Cross-sectional study carried out with a probabilistic sample of students from second to fifth grade of public elementary schools in Feira de Santana, Bahia (n = 2,477; girls: 53.2%; age: 9.1 ± 1.38 years; BMI z-score 0.37 ± 4.19 Kg/m²). Food intake, screen use, and physical activity were assessed using an online questionnaire based on previous day recall (Web-CAAFE). Prevalence Ratios (PR) and 95% Confidence Intervals (95%CI) were estimated via multiple zero-inflated negative binomial regression, with adjustments for sex, age, and weekly frequency of school meal intake. The moderating effect of DPA was verified by inserting interaction terms with each screen-based device individually and with the daily sum of screen-based device exposure (∑ Screens). RESULTS: The majority of students (72.2%) reported using screens. The intake of unhealthy foods was positively associated with the use of cell phones (PR = 1.21; 95%CI = 1.13-1.30), computers (PR = 1.33; 95%CI = 1.22-1.46), and video games (PR = 1.36; 95%CI = 1.22-1.52). TV use was inversely associated with intake of unhealthy foods (PR = 0.92; 95%CI = 0.87-0.99). DPA moderated the effect of video game use on intake of unhealthy foods, that is, among students with DPA ≥ 4 who used video games, the intake of unhealthy foods was 21% lower (PR = 0.79; 95%CI = 0. 65-0.97). Overall, ∑ Screen-based devices were associated with a 20% increase in intake of unhealthy foods. CONCLUSION: The intake of unhealthy foods was positively associated with the use of cell phones, computers, and video games. In addition, a frequency of four or more DPA attenuated the effect of video game exposure on intake of unhealthy foods. Upcoming investigations on the use of screen-based devices and the intake of unhealthy foods among schoolchildren should consider the exposure to different types of screen-based devices, as well as the influence of DPA.
ABSTRACT
O parto cesáreo é apontado como fator de risco para diversas doenças crônicas. Neste estudo, objetivou-se averiguar a associação entre parto cesáreo e pressão arterial (PA) de crianças de 6 anos. Trata-se de estudo transversal conduzido em Feira de Santana (BA), com 635 pares de mãe e filho. O tipo de parto foi categorizado em cesárea e vaginal. A PA foi aferida por meio de esfigmomanometria e considerada elevada quando atingiu níveis iguais ou maiores ao percentil 90 para idade, sexo e altura. Razões de prevalência brutas (RPbruta) e ajustadas (RPajustada) e respectivos intervalos de confiança de 95% (IC95%) foram estimados via regressão logística múltipla. A cesariana ocorreu em 46,5% dos casos, as prevalências de pressão arterial sistólica (PAS) e diastólica (PAD) elevadas foram de 17,2% e 5,6%, respectivamente. O excesso de peso foi verificado em 28,6% das crianças. A maior prevalência de PAS elevada foi observada entre as crianças que nasceram por cesariana (61%) em relação às que nasceram por parto vaginal (RPbruta: 1,51; IC95%: 1,07-2,14; RPajustada: 1,61; IC95%: 1,05-2,46). A idade materna ao nascimento da criança foi fator de interação na associação principal, assim, as crianças nascidas via parto vaginal exibiram maior prevalência de PAS elevada, comparadas às nascidas via cesárea. O parto cesáreo se associou à PAS elevada aos 6 anos de idade.
Cesarean delivery is considered a risk factor for several chronic diseases. This study aimed to investigate the association between cesarean section and blood pressure (BP) in 6-year-old children. This is a cross-sectional study carried out in Feira de Santana, (BA) with 635 mother-child pairs. The type of birth was categorized into cesarean and vaginal. The BP was measured by using sphygmomanometry and considered high when it reached levels equal or higher than the 90th percentile for age, gender, and height. Crude (PRcrude) and adjusted (PRadjusted) prevalence rate and respective 95% confidence intervals (95%CI) were estimated by multiple logistic regression. Cesarean section occurred in 46.5% of the cases, the prevalence of high systolic (SBP) and diastolic (DBP) blood pressure were 17.2% and 5.6%, respectively. Excess weight was verified in 28.6% of the children. The highest prevalence of high SBP was among children who were born by cesarean section (61%) compared with those who were born vaginally (PRcrude: 1.51; 95%CI: 1.07-2.14; PRadjusted: 1.61; 95%CI %: 1.05-2.46). Maternal age at the birth of the child was an interaction factor in the main association, thus, children born vaginally had a higher prevalence of elevated SBP, compared with those born via cesarean section. Cesarean section was associated with increased SBP at six years of age.
El parto por cesárea presenta un factor de riesgo para varias enfermedades crónicas. El objetivo de este estudio fue investigar la asociación entre el parto por cesárea y la presión arterial (PA) en niños de 6 años de edad. Se trata de un estudio transversal, realizado en Feira de Santana, en Bahía (Brasil), con 635 pares de madre e hijo. El tipo de parto se clasificó en cesárea y vaginal. La PA se midió mediante esfigmomanometría y se consideró alta cuando alcanzó niveles más altos o iguales al percentil 90 para edad, sexo y talla. Las razones de prevalencia crudas (RPcrudas) y ajustadas (RPajustadas) y los respectivos intervalos de confianza del 95% (IC del 95%) se estimaron mediante regresión logística múltiple. La cesárea ocurrió en el 46,5%, las prevalencias de presión arterial sistólica (PAS) y diastólica (PAD) altas fueron el 17,2% y el 5,6%, respectivamente. El exceso de peso se presentó en el 28,6% de los niños. La mayor prevalencia de PAS alta se observó entre los niños nacidos por cesárea (61%) en comparación con los nacidos por vía vaginal (RPcruda: 1,51; IC95%: 1,07-2,14; RPajustada: 1,61; IC95%: 1,05-2,46). La edad materna al nacimiento del niño fue un factor de interacción en la principal asociación, así, los niños nacidos por vía vaginal tuvieron una mayor prevalencia de PAS elevada en comparación con los nacidos por cesárea. El parto por cesárea se asoció con un aumento de la PAS a los 6 años de edad.
Subject(s)
Humans , Child, Preschool , Child, PreschoolABSTRACT
BACKGROUND: Attendance in physical education classes (PE) helps young people to achieve the physical activity recommendations and to reduce their exposure to sedentary behavior. However, the association between PE attendance and the daily frequency of specific forms of physical activity is less known. The current study analyzed the association between weekly attendance in PE and daily frequencies of different forms of physical activity (active play, non-active play, structured physical activity), and overall daily frequencies of physical activity (PA) and sedentary behaviors (SB) among schoolchildren. METHODS: Cross-sectional study with schoolchildren from second to fifth grade of 11 public schools (n = 2,477; 9.1 ± 1.38-y-old; 53.2% girls; 17.5 ± 3.5 kg/m2) in Feira de Santana (Northeast Brazil). PA, SB, and attendance in PE were self-reported using a previously validated on-line questionnaire based on the previous day's recall (Web-CAAFE). Multiple Binomial Negative regression modeling was carried out to analyze the association (Prevalence Rate: PR) between weekly attendance in PE (0/week, 1/week, ≥ 2/week) and frequencies of active play, non-active play, and structured physical activity, with adjustments by age, school shift, and BMI z-scores. Regression models analyzing overall PA also included adjustments by household chores. RESULTS: Attendance in PE ≥ 2/week was associated with higher frequencies of active play (girls: PR = 1.40, 95%CI = 1.11-1.78; boys: PR = 1.49, 95%CI = 1.15-1.94) and structured physical activity (girls: PR = 2.11, 95%CI = 1.31-3.40; boys: PR = 4.33, 95%CI = 1.63-11.52). Higher attendance in PE (≥ 2/week) was associated with high overall PA (girls: PR = 1.31, 95%CI = 1.06-1.62; boys: PR = 1.42, 95%CI = 1.14-1.77) and low SB (girls: PR = 0.80, 95%CI = 0.71-0.90; boys: PR = 0.81, 95%CI = 0.68-0.97). Attendance in PE 1/week was also associated with a lower frequency of daily SB among girls (PR = 0.73, 95%IC = 0.64-0.84) CONCLUSION: Higher weekly attendance in PE was associated with higher frequencies of active play, structured physical activity, higher overall PA, and lower SB among both girls and boys.
Subject(s)
Physical Education and Training , Sedentary Behavior , Adolescent , Child , Cross-Sectional Studies , Exercise , Female , Humans , Male , SchoolsABSTRACT
The study sought to analyze the nutritional deficit of children and associated environmental factors and maternal and infant characteristics in a major city in the interior of the state of Bahia. Information from mother/child-under-four duos of a birth cohort was assessed. Malnutrition was defined by the height-for-age (H/A) anthropometric index, at a cutoff of -1 z-score relative to the benchmark of the 2006 Multicentre Growth Reference Study. The variables studied were: the characteristics of children (birth weight and multiple births) and mothers (age at the time of birth, education level, parity and performing prenatal exams) and environmental factors (floor and roof material of residence, source of water consumed, indoor plumbing, water used for consumption and ownership of a refrigerator). Logistic regression was used to identify factors associated with nutritional deficit. Nutritional deficit occurred in 24.6% of children. Underweight at birth, inadequate prenatal care, precarious nature of the floor of the home and no indoor plumbing were predictors of malnutrition among children in the study. Factors associated with malnutrition confirm the contribution of social issues in the genesis of malnutrition.
