Table 3.
Mean changes in physical activity and diet from pregnancy to 6 months postpartum with mean differences between conditions: the GEM trial
| Primary analysis |
Sensitivity analysis |
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|---|---|---|---|---|---|---|---|---|---|---|---|
| Self-reported data |
Self-reported or imputed data |
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| Intervention |
Usual care |
Intervention |
Usual care |
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| n | Mean (SD) | n | Mean (SD) | Adjusted* mean condition difference (95% CI) | n | Mean (SD) | n | Mean (SD) | Adjusted* mean condition difference (95% CI) | ||
| Moderate activity (min/week) | |||||||||||
| During pregnancy | 522 | 38.2 (62.9) | 560 | 32.1 (55.8) | 1,083 | 39.1 (2.6) | 1,187 | 34.1 (2.5) | |||
| 6 months postpartum | 522 | 42.8 (67.2) | 560 | 33.7 (61.8) | 1,083 | 47.0 (2.5) | 1,187 | 35.4 (3.1) | |||
| Mean change (95% CI) | 4.5 (−1.8, 10.8) | 1.6 (−4.5, 7.7) | 7.0 (−0.8, 14.7) | 8.0 (1.8, 14.1) | 1.9 (−6.5, 10.3) | 9.5 (0.7, 18.3) | |||||
| Vigorous activity (min/week) | |||||||||||
| During pregnancy | 522 | 23.5 (53.3) | 560 | 19.0 (46.2) | 1,083 | 22.9 (1.8) | 1,187 | 19.6 (1.6) | |||
| 6 months postpartum | 522 | 47.2 (78.9) | 560 | 30.6 (68.4) | 1,083 | 47.6 (2.9) | 1,187 | 32.5 (2.9) | |||
| Mean change (95% CI) | 23.7 (16.9, 30.5) | 11.7 (5.1, 18.2) | 15.4 (4.9, 25.8) | 24.9 (18.0, 31.7) | 13.3 (6.3, 20.3) | 14.0 (5.0, 22.9) | |||||
| Total volume of physical activity (MET min/week) | |||||||||||
| During pregnancy | 522 | 1,667.9 (1,312.9) | 560 | 1,554.4 (1,212.6) | 1,816.6 (58.6) | 1,781.7 (53.3) | |||||
| 6 months postpartum | 522 | 1,753.9 (1,300.5) | 560 | 1,610.0 (1,354.7) | 1,843.0 (64.4) | 1,727.6 (54.0) | |||||
| Mean change (95% CI) | 88.0 (−48.5, 224.6) | 58.4 (−79.1, 195.9) | 113.8 (−78.0, 305.6) | 1,083 | 33.5 (−135.8, 202.8) | 1,187 | −47.4 (−203.0, 108.3) | 100.5 (−83.7, 284.7) | |||
| Daily total energy intake (kcal) | |||||||||||
| During pregnancy | 639 | 1,763.1 (655.7) | 668 | 1,740.2 (644.1) | 1,754.6 (28.4) | 1,785.7 (26.4) | |||||
| 6 months postpartum | 639 | 1,591.4 (614.7) | 668 | 1,583.4 (608.0) | 1,580.4 (27.5) | 1,622.7 (25.9) | |||||
| Mean change (95% CI) | −171.8 (−221.2, −122.4) | −153.9 (−203.7, −104.1) | −5.3 (−64.6, 53.9) | 1,083 | −175.5 (−232.9, −118.1) | 1,187 | −162.7 (−214.8, −110.6) | −26.6 (−88.3, 35.1) | |||
| Daily percent of calories from fat | |||||||||||
| During pregnancy | 639 | 42.1 (6.9) | 668 | 42.2 (7.0) | 42.0 (0.3) | 42.2 (0.3) | |||||
| 6 months postpartum | 639 | 40.2 (6.3) | 668 | 39.8 (6.7) | 40.1 (0.3) | 39.8 (0.3) | |||||
| Mean change (95% CI) | −1.8 (−2.5, −1.1) | −2.3 (−3.0, −1.6) | 0.4 (−0.3, 1.1) | 1,083 | −2.0 (−2.6, −1.3) | 1,187 | −2.4 (−3.1, −1.8) | 0.3 (−0.4, 1.1) | |||
*Adjusted for baseline values.