biostudies-literatureWhiting SWorld Health Organization32-44https://www.ebi.ac.uk/biostudies/studies/S-EPMC7983588biostudies-literatureUnknown14(1)<h4>Background</h4>Children are becoming less physically active as opportunities for safe active play, recreational activities, and active transport decrease. At the same time, sedentary screen-based activities both during school and leisure time are increasing.<h4>Objectives</h4>This study aimed to evaluate physical activity (PA), screen time, and sleep duration of girls and boys aged 6-9 years in Europe using data from the WHO European Childhood Obesity Surveillance Initiative (COSI).<h4>Method</h4>The fourth COSI data collection round was conducted in 2015-2017, using a standardized protocol that included a family form completed by parents with specific questions about their children's PA, screen time, and sleep duration.<h4>Results</h4>Nationally representative data from 25 countries wObesity factsPhysical Activity, Screen Time, and Sleep Duration of Children Aged 6-9 Years in 25 Countries: An Analysis within the WHO European Childhood Obesity Surveillance Initiative (COSI) 2015-2017.PMC7983588001Zamrazilova HAbu-Omar KKujundzic ERussell Jonsson KPudule IWilliams JTanrygulyyeva MAhrens WRasmussen MTicha LPetrauskiene ADuleva VBuoncristiano MSchindler KFijalkowska AHassapidou MStojisavljevic DRakovac IHyska JGutierrez-Gonzalez EWhiting SShengelia LOstojic SMAbdrakhmanova SHejgaard TSant'Angelo VFStarc GMendes RSpiroski INurk EAbildina AAitmurzaeva GBrinduse LAPeterkova VHeinen MMCucu ANardone PFilipovic Hadziomeragic AUsuopva ZBoymatova KGelius PAbdurrahmonova ZKelleher CCSpinelli AGualtieri ARutter HBergh IHGarcia-Solano MFismen ASYardim NKovacs VAPattison MMarkidou Ionnaidu ERito AIMusic Milanovic SPopovic SWeghuber DBreda JfalsePhysical Activity, Screen Time, and Sleep Duration of Children Aged 6-9 Years in 25 Countries: An Analysis within the WHO European Childhood Obesity Surveillance Initiative (COSI) 2015-2017.<h4>Background</h4>Children are becoming less physically active as opportunities for safe active play, recreational activities, and active transport decrease. At the same time, sedentary screen-based activities both during school and leisure time are increasing.<h4>Objectives</h4>This study aimed to evaluate physical activity (PA), screen time, and sleep duration of girls and boys aged 6-9 years in Europe using data from the WHO European Childhood Obesity Surveillance Initiative (COSI).<h4>Method</h4>The fourth COSI data collection round was conducted in 2015-2017, using a standardized protocol that included a family form completed by parents with specific questions about their children's PA, screen time, and sleep duration.<h4>Results</h4>Nationally representative data from 25 countries w2021-01-01T00:00:00Z20212025-04-26T09:01:43.483Z2025-04-06T12:55:09.274ZS-EPMC79835883335257510.1159/000511263