Table 1. General characteristics of the lactating women (n=119).

Variable		Total
Maternal age (yr)		31.85±3.27
Gestational age (wk)		39.17±1.15
Birth weight (kg)		3.24±0.37
Postnatal weight change (kg)		0.48±0.80
Postnatal age (day)		22.77±31.98
The time of human milk extraction
	06:00 a.m.–12:00 p.m.	51 (42.9)
	12:00 p.m.–18:00 p.m.	22 (18.5)
	18:00 p.m.–24:00 p.m.	22 (18.5)
	00:00 p.m.–06:00 a.m.	24 (20.2)
No. of births (1st baby/2nd baby)		100 (84.0)/19 (16.0)
Method of delivery (normal delivery/C-sec)		58 (48.7)/61 (51.3)
The side extracted (left/right/both)		17 (14.3)/15 (12.6)/87 (73.1)
Infant sex (male/female)		64 (53.8)/55 (46.2)

Values are presented as mean±standard deviation or number (%).

C-sec: Caesarean section.