Incidence and risk factors for infantile colic in Iranian infants

Table 1 Comparison of potential predictors of infantile colic in colicky and non-colicky subgroups

Factor	Colicky group	Non-colicky group	P
	(n = 65)	(n = 256)
Gender
Male	31	137
Female	34	119
Ratio	0.91	1.15	0.40
Mode of delivery
Vaginal	42	156
Cesarean	23	100
Ratio	1.82	1.56	0.58
Gestational age at birth
≥ 37 wk	45	191
< 37 wk	20	65
Ratio	2.25	2.93	0.38
Birth weight
≥ 2500 g	50	214
< 2500 g	15	42
Ratio	3.33	5.09	0.21
Birth order
First born	42	127
Later born	23	129
Ratio	1.82	92	0.03
Mode of feeding
Exclusive breastfed	54	219
Non-exclusive breastfed	11	37
Ratio	4.90	4.76	0.24