Screen time and adiposity in adolescents in Mexico

Content Provider	Scilit
Author	Lajous, Martín Chavarro, Jorge Peterson, Karen E. Hernández-Prado, Bernardo Cruz-Valdéz, Aurelio Hernández-Ávila, Mauricio Lazcano-Ponce, Eduardo
Copyright Year	2009
Description	Objective: To assess the association of time spent viewing television, videos and video games with measures of fat mass (BMI) and distribution (triceps and subscapular skinfold thicknesses (TSF, SSF)).Design: Cross-sectional validated survey, self-administered to students to assess screen time (television, videos and video games) and lifestyle variables. Trained personnel obtained anthropometry. The association of screen time with fat mass and distribution, stratified by sex, was modelled with multivariable linear regression analysis, adjusting for potential confounders and correlation of observations within schools.Setting: State of Morelos, Mexico.Subjects: Males (n3519) and females (n5613) aged 11 to 18 years attending urban and rural schools in Morelos.Results: In males, screen time of >5 h/d compared with <2 h/d was significantly associated with a 0·13 (95 % CI 0·04, 0·23) higher BMIZ-score, 0·73 mm (95 % CI 0·24, 1·22) higher SSF and 1·08 mm (95 % CI 0·36, 1·81) higher TSF. The positive association of screen time with SSF was strongest in males aged 11–12 years. Sexual maturity appeared to modify the association in females; a positive association between screen time and SSF was observed in those who had not undergone menarche (Pfor trend = 0·04) but not among sexually mature females (Pfor trend = 0·75).Conclusion: Screen time is associated with fat mass and distribution among adolescent males in Mexico. Maturational tempo appears to affect the relationship of screen time with adiposity in boys and girls. Findings suggest that obesity preventive interventions in the Mexican context should explore strategies to reduce screen time among youths in early adolescence.
Related Links	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3968312/pdf https://www.cambridge.org/core/services/aop-cambridge-core/content/view/DDB39512839DC4D9A49037ED0B05DB4F/S1368980009004881a.pdf/div-class-title-screen-time-and-adiposity-in-adolescents-in-mexico-div.pdf
Ending Page	1945
Page Count	8
Starting Page	1938
ISSN	13689800
e-ISSN	14752727
DOI	10.1017/s1368980009004881
Journal	Public Health Nutrition
Issue Number	10
Volume Number	12
Language	English
Publisher	Cambridge University Press (CUP)
Publisher Date	2009-10-01
Access Restriction	Open
Subject Keyword	Public Health Nutrition Sport Sciences Body Mass Index Triceps Skinfold Subscapular Skinfold Television Viewing Screen Time
Content Type	Text
Resource Type	Article
Subject	Nutrition and Dietetics Public Health, Environmental and Occupational Health