Table 2.
Weight outcomes at follow up
| Usual care | Intervention | |||
|---|---|---|---|---|
| Randomised | 36 | 40 | ||
| Withdrawn | 0 | 1 | ||
| Miscarriage | 0 | 2 | ||
| 38 week weight not obtained | 2 | 6 | ||
| Weight gain (pre-booking to 38 weeks gestation n = 68) | ||||
| % exceeding recommended weight gain | 10/34 | (29.4) | 8/34 | (23.5) |
| Healthy BMI category | 2/19 | (10.5) | 2/18 | (11.1) |
| Overweight BMI category | 8/15 | (53.3) | 6/16 | (37.5) |
| Mean | (sd) | Mean | (sd) | |
| Average total weight gain (kg) | 12.1 | (5.9) | 12.0 | (4.5) |
| Healthy BMI category | 12.6 | (5.1) | 12.3 | (4.0) |
| Overweight BMI category | 11.6 | (7.0) | 11.6 | (5.1) |
| Average weekly weight gain (kg)a | 0.4 | (0.2) | 0.4 | (0.2) |
| Healthy BMI category | 0.4 | (0.2) | 0.4 | (0.1) |
| Overweight BMI category | 0.3 | (0.2) | 0.4 | (0.2) |
| Weight gain (pre-booking to 72 hours post delivery n = 69) | ||||
| Average Total Weight Gain (kg) | 6.6 | (5.8) | 7.5 | (4.7) |
| Healthy BMI category | 7.1 | (5.4) | 7.4 | (4.4) |
| Overweight BMI category | 6.0 | (6.3) | 7.5 | (5.2) |
| Weight gain (pre-booking to 6–8 weeks post delivery n = 65) | ||||
| Average total weight gain (kg) | 3.1 | (5.4) | 4.4 | (4.5) |
| Healthy BMI category | 4.0 | (4.9) | 4.4 | (4.0) |
| Overweight BMI category | 2.0 | (5.9) | 4.4 | (5.1) |
aIOM guidance: women in the healthy and overweight BMI categories at the start of pregnancy should gain between 0.35–0.5 and 0.23–0.33 per week of pregnancy