Table 1.

Demographic,socioeconomic, and maternal-child characteristics of mother–child pairs recruited from public healthcare centers in Tehran (N = 420)

Category	Subcategory	n	%
Mother’s employment status	Housewife	307	73.1
	Part-time employment	74	17.6
	Full-time employment	39	9.3
Household financial status	Poor	28	6.7
	Average	335	79.8
	Good	57	13.6
Mother’s education level	Elementary	65	15.5
	High school diploma	164	39
	University degree	191	45.5
Spouse’s education level	Elementary	58	13.8
	High school diploma	185	44
	University degree	177	42.1
Maternal age (years)	<24	53	12.6
	25–29	152	36.2
	30–34	139	33.1
	≥35	76	18.1
Residential district	District 10	60	14.3
	District 11	60	14.3
	District 16	120	28.6
	District 17	60	14.3
	District 19	120	28.6
Child age (months)	<42	103	24.5
	42–<45	173	41.2
	45–48	144	34.3
Child’s gender	Female	194	46.2
	Male	226	53.8
Parity (Number of pregnancies)	One	220	52.4
	Two	150	35.7
	≥Three	50	11.9
Number of living children	One	293	69.8
	Two	113	26.9
	Three	14	3.3
Birth weight of last child (kg)	<1.0	0	0
	1.0–1.49	7	1.7
	1.5–2.49	45	10.7
	2.5–3.99	367	87.4
	≥4.0	1	0.2
Mode of delivery	Vaginal delivery	90	21.4
	Cesarean section	330	78.6
Child hospitalization history	Yes	33	7.9
	No	387	92.1
History of Reported Illnesses in Children ( n = 33)
Type of illness	n	%
Jaundice	21	63.6
Seizures	7	21.2
Rectal bleeding	2	6.1
Heart disease	1	3
Asthma	1	3
Urinary tract infection	1	3
Total	33	100

Note. Data are self-reported. Percentages may not total 100% due to rounding. Illness history is reported only for children whose mothers reported a health condition