Table 2.

Demographic information and comparison of typical and atypical groups

Variable		Total (N=168) N (%)	Typical group (N=105) N (%)	Atypical group (N=63) N (%)	P value
Age (month, mean±SD)		29.91±19.52	32.12±18.12	26.23±21.14	0.057*
Gender	Male	105 (62.5%)	65 (61.9%)	40 (66.2%)	0.837**
	Female	63 (37.5%)	40 (63.5%)	23 (36.5%)
Birth order	1st	60 (38.2%)	43 (43.9%)	17 (28.8%)	0.308**
	2nd	62 (39.5%)	37 (37.8%)	25 (42.4%)
	3rd or more	35 (22.3%)	18 (18.3%)	17 (28.8%)
Family relationship of parents	Yes	15 (22.7%)	6 (14.6%)	9 (36.0%)	0.068**
	No	51 (77.3%)	35 (85.4%)	16 (64.0%)
Type of delivery	NVD	66 (43.7%)	46 (47.9%)	20 (36.4%)	0.168**
	C/S	85 (56.3%)	50 (52.1%)	35 (63.6%)

C/S: Cesarean section; NVD: Normal vaginal delivery;

^*Independent samples t test was used for comparison.

^**Chi square test was used for comparison. P<0.05 was considered significant.