Table 2

Subgroup analyses for studies reporting screen time outcomes

Number of studiesMean difference (min/day)95% CIs Heterogeneity within subgroups
SubgroupLowerUpperZp Valueχ2I2 (%)p Value
Duration of intervention
 Short (<6 months)11−15.45−32.631.731.760.0893.3689<0.00001
 Long (≥6 months)6−16.14−23.33−8.944.39<0.00016.3421<0.0001
Behaviours targeted
 Targeted SB alone4−34.24−53.53−14.953.480.00057.44600.06
 Targeted SB, PA and diet13−12.19−17.72−6.654.31<0.000114.38170.28
Child age
 <3 years4−13.17−20.70−5.643.430.00063.2160.36
 ≥3 years13−18.20−32.54−3.872.490.01100.6588<0.00001
Setting
 Preschool/childcare7−11.97−21.41−2.542.490.017.69220.26
 Home4−30.55−54.80−6.312.470.0112.86770.005
 Community-based (eg, community venues)3−16.03−23.93−8.123.97<0.00011.1000.58
 Healthcare centre/paediatric office3−9.91−23.884.051.390.163.52430.17
  • PA, physical activity; SB, sedentary behaviour.