P08-17 Physical activity according to migration status in adolescents living in French-speaking Belgium

Abstract Background Rising levels of childhood obesity is a worldwide concern, with physical inactivity considered to be amongst the many contributors. Worryingly, physical activity (PA) tends to decline throughout adolescence. Although there is extensive research on the sociodemographic disparities of adolescent PA participation, less evidence is available on the potential involvement of immigration status in such disparities. The aim of this study was to investigate PA levels according to migration status among adolescents aged 12-20 years in Belgium. Methods This study used the data from the cross-sectional 2018 Health Behaviour in School-aged Children (HBSC) survey in French-speaking Belgian schools (Brussels and Wallonia). A two-stage random sample was used to select participants. Data was collected using self-administrated questionnaires. Adolescents aged 12 to 20 were included in the analyses presented here (n = 8635, boys: n = 4179, girls: n = 4456). The association of global PA (GPA) and vigorous PA (VPA) with migration status (natives, 2nd and 1st-generation immigrants) was analysed using multiple binary logistic regression analyses. Interactions with gender were tested. Results The prevalence of adolescents undertaking sufficient GPA (moderate to vigorous PA 60 minutes/day and VPA ≥3 times/week) was higher amongst 1st-generation immigrants (11.7%) compared to 2nd-generation immigrants (7.4%) and natives (8.9%) (p = 0.01). Vigorous PA ≥ 3 times/week was significantly more prevalent amongst natives (52.6%) than 2nd (44.9%) and 1st (48.8%) generation immigrants. After adjusting for sociodemographic variables, compared to natives, 2nd-generation immigrants were less likely to participate in sufficient GPA (aOR= 0.83, 95%CI: 0.69-1.00) and VPA (aOR= 0.77, 95%CI: 0.68-0.87). Conversely, 1st-generation immigrants were more likely to be sufficiently active compared to natives (GPA: aOR= 1.44, 95%CI: 1.03-2.01). An interaction between migration status and gender was found for VPA only (p > 0.001). Compared to natives, 1st-generation immigrant boys were more likely (aOR=1.42, 95%CI: 1.15-1.75) and immigrant girls were less likely to undertake VPA ≥3 times/week (2nd-generation: aOR= 0.66, 95%CI: 0.56-0.78; 1st-generation: aOR=0.72, 95%CI: 0.57-0.90). Conclusions This study shows disparities in PA participation according to migration status and gender, independently of sociodemographic characteristics, for adolescents living in French-speaking Belgium. These findings will enable to inform future public health initiatives promoting PA in adolescents on migration and gender-specific considerations.

Corresponding author: Emma.Holmberg@ulb.be Background Rising levels of childhood obesity is a worldwide concern, with physical inactivity considered to be amongst the many contributors. Worryingly, physical activity (PA) tends to decline throughout adolescence. Although there is extensive research on the sociodemographic disparities of adolescent PA participation, less evidence is available on the potential involvement of immigration status in such disparities. The aim of this study was to investigate PA levels according to migration status among adolescents aged 12-20 years in Belgium.

Methods
This study used the data from the cross-sectional 2018 Health Behaviour in School-aged Children (HBSC) survey in Frenchspeaking Belgian schools (Brussels and Wallonia). A two-stage random sample was used to select participants. Data was collected using self-administrated questionnaires. Adolescents aged 12 to 20 were included in the analyses presented here (n = 8635, boys: n = 4179, girls: n = 4456). The association of global PA (GPA) and vigorous PA (VPA) with migration status (natives, 2nd and 1st-generation immigrants) was analysed using multiple binary logistic regression analyses. Interactions with gender were tested.

Conclusions
This study shows disparities in PA participation according to migration status and gender, independently of sociodemographic characteristics, for adolescents living in French-speaking Belgium. These findings will enable to inform future public health initiatives promoting PA in adolescents on migration and gender-specific considerations. Keywords: Physical activity, Adolescents, Immigration status, Youth, Sociodemographic disparities

Background
The health benefits of a physically active lifestyle adolescence include improved muscular fitness, bone cardiometabolic health, and positive effects on weight. activity has also a positive impact on cognitive development and socializing. Trends show a decline in its practice, especially in developing countries. As the potential related-factors of physical activity are not commonly assessed in Ivorian youth, we investigated factors associated with physical activity among schoolchildren in Abidjan. Methods A cross-sectional study was carried out in a random sample of 394 schoolchildren aged 11-20 years in 2019, in Abidjan, Southern Cô te d'Ivoire. Moderate-to-vigorous physical activity was assessed using a questionnaire based on Youth Risk Behaviour Surveillance System (YRBSS). Height and weight were objectively measured and body mass index (BMI) was calculated. Demographic and socioeconomic characteristics and dietary factors were also collected. Chi square test was used to compare proportions.

Results
The majority of children (71.3%) do not achieve the daily recommended duration of physical activity (at least 60 minutes/day). Walking to school (80.4%) was the most common physical activity. Schoolchildren that were male (p = 0.039), had normal BMI (p = 0.04), consumed water during meals (p = 0.000) were the more physically active. The others factors that increase physical activity in our population were physically active mothers (p = 0.037) and the presence of