Table 5. Birth outcome and birth size by levels of activity for pre-pregnant weight <45 kg of rural mothers.
| Variables$ | Activity at 18 wk gestation | Activity at 28 wk gestation | ||||||
|---|---|---|---|---|---|---|---|---|
| Low | Medium | High | P# | Low | Medium | High | P# | |
| Pre-pregnant Weight <45 kg | ||||||||
| Term deliveries | (153) | (155) | (154) | (153) | (154) | (146) | ||
| Birth weight (g) | 2694 (2668-2720) |
2583 (2558-2608) |
2629 (2607-2650) |
0.14 | 2665 (2641-2689) |
2633 (2604-2662) |
2597 (2573-2621) |
0.09 |
| Head circum. (cm) | 33.3 (33.2-33.4) |
32.8 (32.7-32.9) |
32.9 (32.8-33.0) |
0.01 | 33.2 (33.1-33.3) |
32.9 (32.8-33.0) |
32.9 (32.8-33.3) |
0.06 |
| Mid-arm circum. (cm) | 9.77 (9.73-9.81) |
9.55 (9.51-9.59) |
9.62 (9.58-9.66) |
0.09 | 9.72 (9.69-9.75) |
9.62 (9.58-9.66) |
9.58 (9.55-9.61) |
0.09 |
| Triceps skinfold (mm) | 4.19 (4.15-4.23) |
4.06 (4.03-4.09) |
4.32 (4.28-4.36) |
0.07 | 4.19 (4.16-4.22) |
4.13 (4.08-4.18) |
4.19 (4.16-4.22) |
0.85 |
| Placental weight (g) | 369.5 (366.3-372.7) |
346.3 (343.7-348.9) |
347.9 (344.6-351.2) |
0.02 | 361.4 (358.4-364.4) |
349.6 (347-352.2) |
348.9 (345.0-352.8) |
0.15 |
$
Values represent adjusted mean (95% CI) values
#
‘p’ after adjusting for direct predictors such as sex, parity, gestation, pre-pregnancy weight, weight gain upto 28th wk and indirect predictors such as social class, energy and protein intakes.