Male | Female | Total | ||||
---|---|---|---|---|---|---|
N | Mean BW | N | Mean BW | N | Mean BW | |
Nulliparous | 4245 | 2676 (2636, 2717) | 3914 | 2587 (2546, 2628) | 8159 | 2634 (2604, 2663) |
1 | 1669 | 2752 (2706, 2798) | 1567 | 2643 (2596, 2690) | 3236 | 2698 (2664, 2732) |
2 | 684 | 2777 (2725, 2830) | 656 | 2675 (2622, 2728) | 1340 | 2725 (2687, 2764) |
3 | 270 | 2803 (2738, 2867) | 288 | 2737 (2674, 2800) | 558 | 2766 (2721, 2812) |
4 or more | 302 | 2823 (2763, 2883) | 313 | 2727 (2669, 2786) | 615 | 2774 (2731, 2817) |
p-value | < 0.0001 | < 0.0001 | < 0.0001 |