Isolated and combined association of excessive screen time and physical inactivity with negative self-rated health in adolescents.

Objective: The aim of this study was to analyze isolated and combined associations of physical inactivity excessive screen time with negative self-rated health, according to sex, among school adolescents.

Methods: In this cross-sectional study conducted with 2,517 adolescents in Amazonas State, participants were asked about their self-rated health with the following question: How do you rate your health? Responses were dichotomized into positive (excellent and good) and negative (regular, bad, and terrible). Information on sex, age group, family income, physical activity, and screen time (watching TV, using a computer, or playing video games) was collected through a self-administered questionnaire.

Attitudes towards body weight dissatisfaction associated with adolescents' perceived health and sleep (PeNSE 2015).

This study aimed to investigate whether attitudes towards body weight dissatisfaction is associated with perceived health and impairments in sleep among a national population-based sample of Brazilian adolescents. This is a cross-sectional data from the 2015 National School-Based Health Survey (PeNSE). A total of 100.

[Fruit and vegetable consumption over a decade among adolescents in the State of Santa Catarina, Brazil].

Understanding the changes in the trends of fruit and vegetable consumption among adolescents is important in order to implement public health actions. The scope of this article is to investigate the changes over a ten-year period in the daily fruit and vegetable consumption among adolescents from Santa Catarina, according to sex, age and housing area. It is a secondary analysis of a panel survey entitled "Lifestyle and Risk Behavior of Adolescents in the State of Santa Catarina, Brazil (ComPAC).

Smoking among industrial workers in Brazil: association with sociodemographic factors, alcohol consumption, and stress levels.

Objective: To determine the prevalence of smoking, as well as its association with sociodemographic factors, alcohol consumption, and stress levels, among industrial workers in Brazil.

Methods: This was a nationwide survey, conducted in 24 capitals in Brazil through the application of a pre-tested questionnaire. The response to the question "What is your smoking status?" was the outcome variable.

Change in overweight and obesity over a decade according to sociodemographic factors in Brazilian adolescents.

The aims were to examine changes in the prevalence of overweight and obesity among students from 2001 to 2011, and to verify if these changes differ according to age group, area of residence, and family income. We analyzed two cross-sectional surveys conducted in 2001 and 2011 with brazilian adolescents. Sociodemographic and anthropometric characteristics were self-reported using a questionnaire.

Food consumption and its association with leisure-time physical activity and active commuting in Brazilian workers.

Background/objectives: An in-depth understanding of the relationship between food consumption and physical activity is relevant since these behaviours could influence each other, while both have an effect on obesity and chronic diseases. In this context, the aim of this study was to investigate the effect of various combinations of food consumption (fruits, vegetables, sweets and snacks) on the associations with PA domains (leisure and commute) among Brazilian industrial workers.

Subjects/methods: This is part of a cross-sectional national survey developed in Brazil using data from the "Lifestyle and Leisure Habits of Industrial Workers" project.

Association between loneliness, physical activity, and participation in physical education among adolescents in Amazonas, Brazil.

Loneliness is an individual and social problem associated with an unhealthy lifestyle among adolescents. We examined the association between loneliness, physical activity, and participation in physical education lessons among school-going adolescents. Participants included 2517 adolescents aged 14-19 years selected from state public high schools in Amazonas, Brazil.

Self-reported well-being and associated factors among industrial workers in Brazil: findings from a national survey.

The purpose of this study was to estimate self-perception of well-being and associated factors among industrial workers in Brazil. A cross-sectional survey was carried out with a representative sample from 23 Brazilian states and the Federal District. Self-reported of well-being was investigated by questionnaire.

Behavior change stages related to physical activity in adolescents from Santa Catarina: prevalence and associated factors.

Objective: Verify the prevalence and sociodemographic and economic factors associated with behavior change stages for habitual physical activity practice in adolescents from Santa Catarina.

Methods: Secondary analysis of a study on the Behavior of Adolescents from Santa Catarina (CompAC 2). Cross-sectional school-based study of 6,529 high-school students (males, n=2,903) from the state of Santa Catarina public education system in 2011, aged 15 to 19 years.

Moderating effect of gross family income on the association between demographic indicators and active commuting to work in Brazilian adults.

Objective: To investigate the moderating effect of gross family income on the association between demographic indicators and active commuting to work in Brazilian adults.

Methods: Secondary analysis of the survey "Lifestyle and leisure habits of industry workers" (n=46,981), conducted in 24 Brazilian states (2006-2008). Self-reported information was collected with a previously tested questionnaire.

[Socio-demographic factors associated with three sedentary behaviors in Brazilian workers].

This study focused on the association between socio-demographic characteristics and three sedentary behaviors among industrial workers in Brazil. Data were analyzed on 47,477 workers from 24 Brazilian states, collected by questionnaires from 2006 to 2008. Individual and simultaneous presence of ≥ 4 hours of TV time per day, commuting by car or motorcycle, and sitting most of the time at work were investigated, as well as associations between these behaviors and gender, age, schooling, and family income.

Clustering of Physical Inactivity in Leisure, Work, Commuting, and Household Domains: Data From 47,477 Industrial Workers in Brazil.

Background: Physical inactivity in each domain (leisure, work, commuting, and household) is not completely independent. This study aimed to describe the clustering of physical inactivity in different domains and its association with sociodemographic factors among Brazilian industrial workers.

Methods: This was a cross-sectional, population-based study using data from 23 Brazilian states and the Federal District collected via questionnaires between 2006 and 2008.

Time spent by Brazilian students in different modes of transport going to school: changes over a decade (2001-2011).

To examine changes in the time spent in each mode of transportation used for going to school by gender and age among adolescents from Santa Catarina State, Brazil. Two school-based surveys were performed in 2001 (N = 5,028) and 2011 (N = 6,529) in high school students (15-19 years old). The mode of transportation (on foot; by bicycle; by bus; car/motorcycle) and the time spent for commuting to school were assessed.

[Leisure-time physical activities among adults in Florianopolis, state of Santa Catarina, Brazil: a population-based study on the characteristics of the practices and the practitioners].

The study established characteristics of practices and practitioners of leisure-time physical activities among adults in Florianopolis, Brazil. It was a population-based, cross-sectional survey conducted between September 2009 and January 2010. Leisure-time physical activity was assessed using a validated questionnaire.

Gender differences in the clustering patterns of risk behaviours associated with non-communicable diseases in Brazilian adolescents.

Objective: The aim of this study is to investigate gender differences in the clustering of risk behaviours associated with chronic non-communicable diseases in Brazilian adolescents.

Methods: A cross-sectional survey was conducted in 2011 comprising 6529 adolescents aged 15-19years from Santa Catarina State, Brazil. Excessive screen-time, insufficient moderate to vigorous physical activity (MVPA), low fruit/vegetable intake and consumption of alcohol were investigated.

Sedentary behaviors, leisure-time physical inactivity, and chronic diseases in Brazilian workers: a cross sectional study.

Background: Our purpose was to examine the association of television viewing (hours/day), sedentary work (predominantly sitting at work), passive transportation to work (car or motorcycle), and the clustering of these behaviors ("sedentary lifestyle"), as well as leisure-time physical inactivity (LTPI), with chronic diseases (hypertension, hypercholesterolemia, type 2 diabetes, obesity, and clustering of chronic diseases) in Brazilian workers.

Methods: Cross-sectional study conducted from 2006 to 2008 in 24 Brazilian federal units (n = 47,477). A questionnaire was applied.

Trends in screen time on week and weekend days in a representative sample of Southern Brazil students.

Background: Economic and technological improvements can help increase screen time use among adolescents, but evidence in developing countries is scarce. The aim of this study was to examine changes in TV watching and computer/video game use patterns on week and weekend days after a decade (2001 and 2011), among students in Santa Catarina, southern Brazil.

Methods: A comparative analysis of two cross-sectional surveys that included 5 028 and 6 529 students in 2001 and 2011, respectively, aged 15-19 years.

Commuting to school and to work among high school students in Santa Catarina state, Brazil: a comparative analysis between 2001 and 2011.

Background: Commuting reflects an important opportunity for youth to engage in physical activity. This study aimed to compare modes of commuting to school and to work and to identify sociodemographic factors associated with various modes of transportation.

Methods: Epidemiologic study with a repeated cross-sectional design.

Physical activity indicators in adults from a state capital in the South of Brazil: a comparison between telephone and face-to-face surveys.

The aim of this study was to compare estimates of prevalence of physical activity indicators and associated sociodemographic factors obtained from telephone and face-to-face interviews with adults. Data from a cross-sectional populationbased survey of adults living in Florianópolis, Santa Catarina State, Brazil was compared to data collected through the telephonic system VIGITEL. There was no significant difference between the results from telephone interviews (n = 1,475) and face-to-face interviews (n = 1,720) with respect to prevalence of sufficient leisure time physical activity (19.

Sociodemographic factors associated with sleep quality and sleep duration in adolescents from Santa Catarina, Brazil: what changed between 2001 and 2011?

Objective: We aimed to identify and compare the sociodemographic and economic factors associated with perceived sleep quality and sleep duration in high school students from Santa Catarina, Brazil (2001 and 2011).

Methods: Our study used a school-based, cross-sectional survey administered in 2001 and 2011 to high school students aged 15-19 years (n=5028 in 2001; n=6529 in 2011) enrolled in public schools in Santa Catarina, Brazil.

Results: The students responded to a questionnaire that asked about the number of hours slept on school days (insufficient, <8 h; sufficient, > or = 8 h), perceived sleep quality (adequate or poor), sociodemographic characteristics (gender, age, and area), economic factors (work and family income), and school-related variables (grade and shift).

Changes in television viewing and computers/videogames use among high school students in Southern Brazil between 2001 and 2011.

Objectives: To compare the prevalence of television (TV) watching and of computer/videogame use among high school students (15-19 years) from Southern Brazil between 2001 and 2011 and to identify associated socio-demographic factors.

Methods: Panel studies were conducted with high school students in the state of Santa Catarina, Brazil, in 2001 (n = 5,028) and 2011 (n = 6,529). TV watching and computer/videogame use were collected using questionnaires.

MONISA study: characteristics and methodological aspects.

The objective is to present the characteristics and methodological procedures adopted in the MONISA Study (Surveillance of health and quality of life indicators of college students). This is a prospective, panel type study, with biannual surveys of representative samples of undergraduate students at a public university in the State of Bahia, Brazil. This study carried out five surveys, totaling 10 years of monitoring (2010-2018).

Prevalence and sociodemographic correlates of all domains of physical activity in Brazilian adults.

Objective: To estimate the prevalence and sociodemographic indicators associated with physical inactivity in leisure, commuting, work, and household in adults in Florianopolis, Brazil.

Methods: Population-based cross-sectional study was conducted from September 2009 to January 2010, with adults between 20 to 59 years of age (n=1720). Sociodemographic indicators and physical inactivity in each domain were assessed by a validated questionnaire, applied through face-to-face interviews.

Lifestyle, self-reported morbidities, and poor sleep quality among Brazilian workers.

Objective: To examine perceived poor sleep quality and its association with unhealthy lifestyle and self-reported morbidities among Brazilian workers.

Methods: This study was part of a national survey involving 47,477 workers who received a questionnaire about lifestyle. Chi-square tests and logistic regression (OR=Odds Ratio) were conducted.

Clustering of unhealthy behaviors in a Brazilian population of industrial workers.

Objective: To analyze the clustering of four unhealthy behaviors (tobacco use, excessive alcohol consumption, physical inactivity and low consumption of fruits and vegetables) and their association with sociodemographic factors among adult industrial workers in Brazil.

Methods: Data from 23 Brazilian states and the Federal District were collected via questionnaire from 2006 to 2008. Clustering of risk behaviors was identified using the ratio between the observed and expected percentages of each combination of unhealthy behaviors.