Table 3

Characteristics of parents and their children recruited in the cohort

Characteristics	N	%
Parental characteristics
Residential sector
Urban	646	34.5
Rural	593	31.6
Estate	636	33.9
Maternal age category
<35 years	1460	77.9
35 years and above	415	22.1
Mother’s education level
Passed grade 5 or less	64	3.4
Passed grade 6–10	518	27.60
Passed ordinary level	797	42.50
Passed advanced level	393	21.0
Degree and above	103	5.5
Mother’s occupation
Employed government sector	81	4.3
Employed private sector	107	5.7
Self-employed/own business	61	3.3
Casual worker	156	8.3
Take care of housework	1470	78.4
Father’s education level
Passed grade 5 or less	53	2.8
Passed grade 6–9	614	32.7
Passed ordinary level	821	43.8
Passed advanced level	300	16.0
Degree and above	74	3.9
Data not available	13	0.7
Father’s occupation
Employed government sector	233	12.4
Employed private sector	618	33.0
Self-employed/own business	376	20.1
Casual worker	544	29.0
Take care of housework	84	4.5
Data not available	20	1.1
Wealth Index Quintile
Lowest	375	20.0
Second	375	20.0
Middle	378	20.2
Fourth	372	19.8
Highest	375	20.0
Prepregnancy BMI category (kg/m²)
Less than 18.5	280	14.9
18.5–24.9	841	44.9
25.0–29.9	413	22.0
>30 and higher	142	7.6
Data not available	199	10.6
Child characteristics
Birth interval (years)
No previous birth	796	42.5
1–2 years	180	9.6
3–4 years	345	18.4
5 years or more	554	29.5
Sex
Female	922	49.2
Male	953	50.8
Mode of delivery
Caesarian	642	34.2
Vaginal	1233	65.8
Birth order
First	796	42.5
Second	640	34.1
Third or higher	439	23.4
Gestational age at birth (weeks)
37–37⁺⁶	359	19.1
38–38⁺⁶	615	32.8
39–39⁺⁶	475	25.3
≥40	426	22.7
Gestational age at birth (weeks)
Birth weight category (g)
<2000	20	1.1
2000–2499	224	11.9
2500–2999	842	44.9
3000–3499	644	34.3
>3500	145	7.7
Current age of child (months)
12–14	461	24.6
15–17	422	22.5
18–20	417	22.2
21–24	575	30.7
Total	1875	100.0

BMI, body mass index.