title: Associations of sedentary behavior and physical activity with physical measurements and dyslipidemia in school-age children: a cross-sectional study.
abstract: Physical activity and sedentary behavior are common factors influencing cardiovascular health. However, how school and leisure-time activity/sedentary behavior are associated with physical fitness and blood lipid levels in primary school children in consideration of gender disparity remains unclear.
  
  
  
  Data was obtained from a health and nutrition survey on primary school children from nine areas in China. The association between physical activities/sedentary behaviors (school and leisure-time physical activity levels, screen time, and other sedentary behaviors) and anthropometric measurements/prevalence of dyslipidemia were examined by multilevel analysis (the individual level, class level, grade level, and investigation area level) adjusted for age, energy intake and family income.
  
  
  
  A total of 770 participants (average age = 9.4 ± 1.7 years) were included. Prevalence of dyslipidemia was 10.9%. Prevalence of dyslipidemia was associated with screen time in boys [OR = 3.04, 95% CI (1.24-7.45)] and inversely associated with leisure-time physical activity in boys [OR = 2.22, 95% CI (1.08-4.56)] and school-time activity in girls [OR = 5.34, 95% CI (1.18-24.16)].
  
  
  
  Physical activity-but not sedentary behavior-was significantly associated with dyslipidemia in both genders. Increasing leisure-time physical activity for boys and school-time physical activity for girls may be critical.
authors.affiliation: Department of Social Medicine and Health Education, School of Public Health, Peking University Health Science Center, Beijing, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zheng
authors.affiliation: Dairy Research Institute, Inner Mongolia Mengniu Dairy (Group) Co. Ltd, Inner mongolia, China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Department of Social Medicine and Health Education, School of Public Health, Peking University Health Science Center, Beijing, China.
authors.forename: Ai
authors.initials: A
authors.lastname: Zhao
authors.affiliation: CAS key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Science, Beijing, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Xue
authors.affiliation: Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China.
authors.forename: Yingdong
authors.initials: Y
authors.lastname: Zheng
authors.affiliation: Dairy Research Institute, Inner Mongolia Mengniu Dairy (Group) Co. Ltd, Inner mongolia, China.
authors.forename: Zhishen
authors.initials: Z
authors.lastname: Mu
authors.affiliation: Department of Social Medicine and Health Education, School of Public Health, Peking University Health Science Center, Beijing, China. wpeiyupku@gmail.com.
authors.forename: Peiyu
authors.initials: P
authors.lastname: Wang
authors.affiliation: Department of Nutrition and Food Hygiene, School of Public Health, Peking University Health Science Center, Beijing, China. zhangyumei@bjmu.edu.cn.|Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Beijing, China. zhangyumei@bjmu.edu.cn.
authors.forename: Yumei
authors.initials: Y
authors.lastname: Zhang
mesh_terms: D002648:Child; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D050171:Dyslipidemias / Q000453:epidemiology / Q000209:etiology*; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D007899:Leisure Activities; D008297:Male; D010809:Physical Fitness / Q000502:physiology*; D015995:Prevalence; D057185:Sedentary Behavior
keywords: Anthropometric measurements; Dyslipidemia; Physical activity; Sedentary behavior