Table 3 Intervention effect on screen-time behaviours per intervention stage and the whole intervention period
Screen-time | Intervention effect after first intervention stage (0 to 18 months)a | Intervention effect after second intervention stage (18 to 28 months)a | Intervention effect considering baseline and last follow-up measurementsd | Overall intervention effect considering three measurementse | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
β [95 % CI] | Pb | β [95 % CI] | Pb | ICCc | β [95 % CI] | Pb | ICCc | β [95 % CI] | Pb | ICCc | |
TV on a weekday (min/day) | −15.66 [−26.1, −5.22] | 0.003 | 13.10 [2.00, 24.20] | 0.02 | 0.08 | −2.52 [−13.44, 8.68] | 0.66 | 0.07 | −7.84 [−17.92, 2.52] | 0.14 | 0.08 |
TV on a weekend (min/day) | −18.90 [−32.04, −5.58] | 0.005 | 9.80 [−4.50, 24.10] | 0.18 | 0.00 | −10.36 [−23.8, 2.8] | 0.12 | 0.00 | −14.84 [−27.44, −2.52] | 0.02 | 0.00 |
Video games on a weekday (min/day) | −0.72 [−5.94, 4.32] | 0.76 | 5.90 [−1.00, 12.80] | 0.10 | 0.00 | 5.88 [−0.84, 12.6] | 0.08 | 0.00 | 3.92 [−1.68, 9.52] | 0.18 | 0.00 |
Video games on a weekend day (min/day) | −1.80 [−10.44, 6.84] | 0.68 | 0.30 [−9.20, 9.70] | 0.96 | 0.01 | −3.08 [−11.76, 5.6] | 0.50 | 0.01 | −2.80 [−10.64, 5.32] | 0.52 | 0.01 |
Computer on a weekday (min/day) | 1.80 [−8.64, 12.24] | 0.74 | 3.10 [−8.10, 14.20] | 0.59 | 0.08 | 3.92 [−8.4, 16.52] | 0.52 | 0.06 | 4.48 [−7.84, 16.8] | 0.48 | 0.07 |
Computer on a weekend day (min/day) | −3.42 [−16.38, 9.54] | 0.60 | 0.30 [−12.70, 13.30] | 0.96 | 0.08 | −6.44 [−20.72, 7.84] | 0.37 | 0.07 | −5.04 [−19.32, 8.96] | 0.48 | 0.07 |
Total screen-time on a weekday (min/day) | −14.22 [−30.78, 2.52] | 0.10 | 21.40 [2.10, 40.70] | 0.03 | 0.04 | 7.22 [−12.88, 27.44] | 0.48 | 0.03 | 0.56 [−17.64, 19.04] | 0.95 | 0.03 |
Total screen-time on a weekend day (min/day) | −25.92 [−48.96, −3.06] | 0.03 | 9.60 [−14.40, 33.60] | 0.43 | 0.02 | −22.42 [−47.04, 2.24] | 0.07 | 0.02 | −25.20 [−47.88, −2.8] | 0.03 | 0.02 |
Proportion of adolescents who exceed 180 min/day on screen-time behaviours | −0.04 [−0.09, 0.01] | 0.01 | 0.00 [−0.05, 0.05] | 0.98 | 0.00 | −0.05 [−0.10, 0.00] | 0.06 | 0.01 | −0.06 [−0.10, −0.01] | 0.01 | 0.00 |