Table 2.

Comparison of puerperae's lactation between the two groups ($\overline{x}$ ± s).

Group	n	Initial time of lactation (h)	Breast milk amount within 48 h after delivery (ml)
Control	48	38.16 ± 4.83	370.15 ± 24.08
Study	48	28.76 ± 3.40	429.96 ± 42.19
t		11.026	8.530
P		<0.001	<0.001