Table 2 Characteristics of participants in a birth cohort study: at birth, 6, 24 and 36Â months after birth
| Â | Caste groups, Mean (SD) or N (%) | Pfor trend | |||
|---|---|---|---|---|---|
| Â | Brahmin | Chetri | Vaishya | Shudra | |
(N = 37, 39.4%) | (N = 13, 13.8%) | (N = 26, 27.7%) | (N = 18, 19.2%) | ||
Mothers characteristics at birth (n = 94) |  |  |  |  |  |
Age (years) | 23.4 (3.1) | 22.4 (2.5) | 23.1 (4.4) | 22.3 (4.5) | 0.41 |
Primipara n (%) | 26 (27.7) | 11 (11.7) | 13 (13.8) | 12 (12.8) | 0.31 |
Education level (median, years) | 12 | 10 | 8 | 8 | <0.001 |
BMI (kg/m2) | 23.3 (2.5) | 22.9 (2.3) | 22.7 (3.8) | 24.1 (2.9) | 0.6 |
Newborn babies characteristics (n = 94) |  |  |  |  |  |
Gestational age (weeks) | 39.1 (1.4) | 39.5 (1.7) | 39.1 (1.3) | 38.8 (0.9) | 0.61 |
Sex of baby n (% male) | 19 (51.4) | 7 (54.0) | 11 (42.3) | 8 (44.4) | 0.48 |
Age of neurodevelopmental assessment | Â | Â | Â | Â | Â |
NBAS III at birth (in hours) (n = 94) | 17.2 (4.0) | 17.1 (2.9) | 17.7 (3.0) | 17.6 (2.5) | 0.56 |
BSID II assessment at 6 months (in days) (n = 94) | 195.3 (13.2) | 199.2 (12.7) | 188.7 (12.3) | 188.9 (12.6) | 0.02 |
BSID II assessment at 24 months (in months) (n = 89) | 25.9 (0.4) | 25.9 (0.4) | 25.7 (0.4) | 25.9 (0.4) | 0.36 |
BSID II assessment at 36 months (in months) (n = 83) | 36.9 (0.4) | 36.9 (0.3) | 36.7 (0.4) | 36.9 (0.4) | 0.37 |
Household characteristics | Â | Â | Â | Â | Â |
Annual family income (USD) | 2891 (3256) | 1944 (1697) | 2798 (3434) | 1771 (1744) | 0.06 |
Total HOME Scale score at 6 months (n = 94) | 31.8 (5.4) | 30.3 (4.0) | 26.8 (4.7) | 26.5 (4.3) | <0.001 |
Total HOME Scale score at 36 months (n = 83) | 41.2 (6.0) | 40.0 (6.0) | 36.5 (6.8) | 33.9 (7.6) | <0.001 |