Table 2.

Comparison of the serum prolactin/estradiol levels between two groups at the second week and the second month after delivery.

Serum level	Treatment group (n = 38)	Control group (n = 38)	P
Prolactin (μg/L, mean ± SD)
At the second week after delivery	8.6 ± 5.0	72.6 ± 32.6	<0.001
At the second month after delivery	11.5 ± 7.1	25.7 ± 37.6	<0.05
Estradiol (ng/L, mean ± SD)
At the second week after delivery	78.3 ± 27.3	159.5 ± 132.0	<0.001
At the second month after delivery	77.7 ± 33.6	104.7 ± 80.1	<0.05