Feature	Category	Effective n = 171	%
Age (year)	≤19	22	12.9
	20 and more	149	87.1
Average age	29.9 ± 40
Parity	≤5	114	66.7
Parity	6 and more	57	33.3
Body mass index (BMI)	≤ 29	142	83.0
Body mass index (BMI)	≥ 30	29	17.0
marital status	married	157	91.8
marital status	single	14	8.2
Study level	not graduate D6	114	66.7
	Graduate or more	57	33.3