TABLE 6

Intention-to-Treat Analysis of Physical Activity at Follow-up of Mothers and Children in the PRIMROSE Trial

InterventionControlMean Δ (95% CI)P
Mean (SE)Mean (SE)
Childrenan = 390bn = 546b
 Mean wear time (h/d)12.6 (0.03)12.6 (0.04)−0.01 (–0.10 to 0.08).87
 SB (min/d)341.4 (2.96)340.7 (2.46)0.61 (–6.93 to 8.16).87
 SB (%/wear time)45.0 (0.01)44.9 (0.01)0.01 (–0.01 to 0.01).84
 LPA (min/d)365.8 (2.47)365.4 (2.10)0.37 (–5.98 to 6.73).91
 LPA (%/wear time)48.4 (0.01)48.3 (0.01)0.01 (–0.01 to 0.01).88
 MVPA (min/d)50.6 (1.00)51.0 (0.90)−0.36 (–3.00 to 2.28).81
 MVPA (%/wear time)6.7 (0.01)6.7 (0.01)−0.01 (–0.01 to 0.01).73
Motherscn = 387n = 554
 Work2.7 (0.04)2.8 (0.04)−0.08 (–0.17 to 0.02).12
 Sport2.6 (0.03)2.6 (0.04)0.07 (–0.02 to 0.16).13
 Leisure time3.0 (0.05)2.9 (0.04)0.06 (–0.06 to 0.17).32
  • This analysis is based on intention to treat as far as missing data permitted (no imputation). LPA, light physical activity; MVPA, moderate-to-vigorous physical activity; SB, sedentary behavior.

  • a Assessed by Actigraph GT3× + accelerometer.

  • b Six children in the intervention and 24 in the control group were excluded from the analysis because of invalid measurements.

  • c Assessed by Baecke questionnaire.