TY - JOUR AU - Øverby, Nina C. AU - Klepp, Knut-Inge AU - Bere, Elling PY - 2013 DA - 2013/01/29 TI - Changes in screen time activity in Norwegian children from 2001 to 2008: two cross sectional studies JO - BMC Public Health SP - 80 VL - 13 IS - 1 AB - There has been an increase in screen-based communication, leading to concerns about the negative health effects of screen-based activities in children and adolescents. The present study aimed to (1) analyze changes in screen time activity in Norwegian children from 2001 to 2008, and (2) to analyze associations between the changes in screen time activity over time and sex, grade level and parental educational level. SN - 1471-2458 UR - https://doi.org/10.1186/1471-2458-13-80 DO - 10.1186/1471-2458-13-80 ID - Øverby2013 ER -