Table 5.
Time Point | Intervention Group | Control Group | n a | Adjusted Effect Size b (95% CI) | Adjusted p Value b | |||
---|---|---|---|---|---|---|---|---|
n | Mean ± SD | n | Mean ± SD | |||||
Total PA (MET-h/week) | ||||||||
Total PA | T1pp | 853 | 179.0 ± 63.9 | 863 | 183.0 ± 68.8 | 1538 | −3.59 (−6.69, −0.50) | 0.023 |
T2pp | 724 | 189.5 ± 64.7 | 737 | 188.1 ± 70.9 | 1338 | 2.60 (−5.23, 10.43) | 0.515 | |
Time effect | p < 0.001 c | p = 0.061 c | ||||||
Total PA of light intensity and above | T1pp | 856 | 168.9 ± 62.2 | 866 | 172.3 ± 67.5 | 1552 | −2.58 (−5.56, 0.40) | 0.090 |
T2pp | 725 | 182.2 ± 63.8 | 740 | 180.6 ± 70.1 | 1348 | 2.71 (−4.95, 10.37) | 0.488 | |
Time effect | p < 0.001 c | p < 0.001 c | ||||||
Intensity (MET-h/week) | ||||||||
Sedentary | T1pp | 903 | 10.1 ± 10.0 | 899 | 10.7 ± 10.3 | 1664 | −0.90 (−1.83, 0.03) | 0.058 |
T2pp | 773 | 7.1 ± 5.9 | 759 | 7.6 ± 6.6 | 1446 | −0.49 (−1.02, 0.05) | 0.077 | |
Time effect | p < 0.001 c | p < 0.001 c | ||||||
Light-intensity | T1pp | 890 | 87.6 ± 33.4 | 885 | 90.8 ± 33.7 | 1628 | −1.37 (−5.08, 2.34) | 0.469 |
T2pp | 753 | 105.4 ± 34.4 | 755 | 103.5 ± 34.4 | 1407 | 1.90 (−1.17, 4.97) | 0.224 | |
Time effect | p < 0.001 c | p < 0.001 c | ||||||
Moderate- intensity |
T1pp | 867 | 80.5 ± 41.1 | 881 | 80.4 ± 43.5 | 1588 | 0.84 (−0.23, 1.92) | 0.124 |
T2pp | 746 | 74.9 ± 43.0 | 746 | 75.1 ± 47.9 | 1387 | 1.00 (−3.35, 5.36) | 0.651 | |
Time effect | p < 0.001 c | p = 0.001 c | ||||||
Vigorous- intensity |
T1pp | 901 | 1.2 ± 3.3 | 902 | 1.0 ± 3.3 | 1671 | 0.20 (−0.09, 0.50) | 0.172 |
T2pp | 774 | 2.3 ± 4.7 | 766 | 2.0 ± 4.6 | 1456 | 0.32 (−0.14, 0.78) | 0.170 | |
Time effect | p < 0.001 c | p < 0.001 c | ||||||
Type (MET-h/week) | ||||||||
Household activity |
T1pp | 882 | 141.2 ± 55.2 | 887 | 145.1 ± 60.0 | 1625 | −1.75 (−7.54, 4.04) | 0.553 |
T2pp | 749 | 140.8 ± 54.2 | 751 | 137.6 ± 55.3 | 1402 | 4.13 (−2.23, 10.50) | 0.203 | |
Time effect | p = 0.880 c | p < 0.001 c | ||||||
Occupational activity | T1pp | 48 | 24.1 ± 38.9 | 52 | 18.6 ± 24.5 | 83 | 8.09 (1.51, 14.67) | 0.016 |
T2pp | 218 | 42.1 ± 33.1 | 218 | 44.8 ± 36.2 | 365 | −2.17 (−8.23, 3.88) | 0.482 | |
Time effect | p = 0.002 c | p < 0.001 c | ||||||
Sport activity | T1pp | 884 | 9.7 ± 8.2 | 888 | 9.2 ± 9.2 | 1627 | 0.12 (−0.55, 0.79) | 0.725 |
T2pp | 756 | 12.5 ± 10.9 | 753 | 11.4 ± 10.5 | 1417 | 0.60 (−1.28, 2.47) | 0.532 | |
Time effect | p < 0.001 c | p < 0.001 c | ||||||
Transportation activity | T1pp | 902 | 14.3 ± 13.4 | 899 | 14.2 ± 13.4 | 1661 | 0.41 (−0.79, 1.61) | 0.505 |
T2pp | 768 | 14.9 ± 12.9 | 762 | 15.2 ± 13.6 | 1439 | 0.01 (−1.09, 1.11) | 0.986 | |
Time effect | p = 0.323 c | p = 0.099 c | ||||||
Inactivity | T1pp | 900 | 12.7 ± 11.5 | 896 | 13.2 ± 11.3 | 1657 | −0.75 (−1.85, 0.35) | 0.182 |
T2pp | 771 | 9.6 ± 7.6 | 757 | 10.3 ± 8.3 | 1441 | −0.63 (−1.35, 0.10) | 0.091 | |
Time effect | p < 0.001 c | p < 0.001 c | ||||||
Meeting PA recommendations (n (%)) d | OR (95% CI) e | |||||||
T1pp | 466/884 | 52.7% | 415/888 | 46.7% | 1691 | 1.15 (0.99, 1.33) | 0.060 | |
T2pp | 439/756 | 58.1% | 416/753 | 55.2% | 1467 | 1.01 (0.83, 1.21) | 0.957 |
Abbreviations: T1pp: Assessment 6–8 weeks postpartum; T2pp: Assessment one year postpartum; SD: Standard deviation; CI: Confidence interval; PA: Physical activity; OR: Odds ratio. a The total of participant numbers varies due to the applied covariates. b Linear regression models fit using generalised estimating equations adjusted for pre-pregnancy BMI category, age, parity, baseline assessment and time interval between questionnaire completion date and birth date of the child. c Linear mixed models for repeated measures adjusted for pre-pregnancy BMI category, age and parity. d Meeting recommendations defined as ≥ 7.5 MET-h/week in category sports activity of moderate-intensity or greater. e Binary logistic regression models fit using generalised estimating equations adjusted for pre-pregnancy BMI category, age, parity, baseline assessment and time interval between questionnaire completion date and birth date of the child.