Table 3 The characteristics of studies included in the two-class meta-analysis regarding the comparison of WC in children and adolescents with high screen time versus low screen time
Journal / Year | First author | Country | Setting/ num | Age (y) | Central obesity definition | Disease status | Screen tools | High screen time definition | Main findings |
|---|---|---|---|---|---|---|---|---|---|
Revista Paulista de Pediatria/ 2016* | Castro JAC [9] | Brazil | School/ 930 | 14–19 | WC ≥ 85th percentile | Healthy | TV, PC, VG |  ≥ 2 h /d | WC was significantly higher among those with video game time more than 2 h (P = 0.01). For other screens, the difference was not significant (for PC, P = 0.83; for TV, P = 0.23) |
Int J Obes (Lond)/ 2014 | Berentzen NE [25] | Netherland | Community/ 1447 | 11 | WC ≥ 85th percentile | Healthy | TV, PC |  ≥ 2 h /d | Significantly higher screen time in the highest versus lowest quintile of central obesity (P = 0.0001) |
J Adolesc/ 2016 | Suchert, V [40] | Germany | School/ 1228 | 12–17 | WC ≥ 85th percentile | Healthy | TV, DVD, PC |  ≥ 2 h /d | Significantly higher WC in those with more than 2 h/day screen time compared with those with less than 2 h per day (P = 0.003) |
Iran J Public Health/ 2015 | Safari S [41] | Iran | School/ 5326 | 10–18 | WC ≥ 85th percentile | Healthy | TV, PC |  ≥ 2 h /d | Those with the highest screen time had significantly higher WC (P < 0.05) |