Table 2 Comparison of the mothers’ characteristics and breastfeeding status of delayed versus normal lactogenesis ii onset groups
|  | Delayed group | Normal group | χ2/U | df | p* |
|---|---|---|---|---|---|
Mothers’ characteristic | n = 36 | n = 34 |  |  |  |
Age years, median (IQR) | 34.0 (31.0, 36.0) | 34.0 (32.0, 36.0) | 681.00 | N/A | 0.42 |
Complications during pregnancy, n (%) | 26 (72.2) | 18 (52.9) | 2.78 | 1 | 0.10 |
Gestational age (week), Median (IQR) | 32.4 (30.3, 33.7) | 33.1 (31.2, 34.3) | 775.00 | N/A | 0.06 |
Cesarean section, n (%) | 29 (80.6) | 20 (58.8) | 3.93 | 1 | 0.05 |
First live birth, n (%) | 27 (75.0) | 18 (52.9) | 3.71 | 1 | 0.05 |
Twin, n (%) | 16 (44.4) | 10 (29.4) | 1.69 | 1 | 0.19 |
Daily expressed milk volume (mL) | Â | Â | Â | Â | Â |
On postpartum day 7, median (IQR) | 160.0 (88.1, 287.5) | 300.0 (187.5, 550.0) | 328.50 | N/A | 0.001 |
At discharge, median (IQR) | 425.0 (200.0, 600.0) | 612.5 (465.0, 850.0) | 372.00 | N/A | 0.005 |