RT Journal Article SR Electronic T1 Physical activity and screen time in children who survived cancer – A report from the Swiss Childhood Cancer Survivor Study JF bioRxiv FD Cold Spring Harbor Laboratory SP 680140 DO 10.1101/680140 A1 Christina Schindera A1 Annette Weiss A1 Niels Hagenbuch A1 Maria Otth A1 Tamara Diesch A1 Nicolas von der Weid A1 Claudia E. Kuehni A1 for the Swiss Pediatric Oncology Group (SPOG) Scientific Committee YR 2019 UL http://biorxiv.org/content/early/2019/06/28/680140.abstract AB Background Physical activity (PA) can reduce the risk of chronic adverse health conditions in childhood cancer survivors. We examined physical activity and sedentary screen time behavior in a nationwide study in Switzerland.Procedures The Swiss Childhood Cancer Survivor Study sent questionnaires to parents of all Swiss resident ≥5 year-survivors diagnosed 1995–2010. We assessed physical activity including compulsory school sport, recreational sport, commuting to school, and time spent with screen media in those aged 5–15 years, and compared results to international recommendations.Results We included 766 survivors with a median age at diagnosis of 2.8 (interquartile range 1.4–5.0) years and a median age at study of 12.5 (10.0–14.3) years. Median PA time was 7.3 (4.8–10.0) hours/week and median screen time 1.4 (0.8–2.0) hours/day. Compulsory school sport hours and walking or cycling to school contributed significantly to total PA. 55% of survivors met PA and 68% screen time recommendations. PA was lower for children living in regions of Switzerland speaking French or Italian compared to German, and for those who had a relapse or musculoskeletal/neurological conditions. Screen time was higher in males, and children with lower parental education and a migration background.Conclusions PA and sedentary screen watching were associated with social factors and PA also with clinical risk factors. Structural preventions that afford active commuting to school and sufficient school sport are essential, as is counselling vulnerable survivor groups such as those with musculoskeletal and neurological problems, and those who have had a relapse.AAPAmerican Academy of PediatricsBMIBody mass indexCCSChildhood cancer survivorCIConfidence IntervalICCC-3International Classification of Childhood Cancer, third editionIQRInterquartile rangeMICEMultivariate imputation by chained equationsOROdds ratioTBITotal body irradiationWHOWorld Health Organization