Table 1.
Summary statistics of the study sample.
| Study Sample (n=135) | Boys (n=64) | Girls (n=71) | P-value | |
|---|---|---|---|---|
| Mothers characteristics | ||||
| Maternal age (years)§ | 27.2 (5.4) | 26.9 (4.6) | 27.5 (6.1) | 0.53 |
| Maternal education (years)§ | 10.8 (3.3) | 11.1 (3.1) | 10.5 (3.5) | 0.24 |
| Marital status (1=Married)£ | 71.9% | 79.7% | 64.8% | 0.05 |
| Children characteritics | ||||
| Weight at birth (kg)§ | 3.1 (0.4) | 3.2 (0.4) | 3.0 (0.4) | 0.02 |
| Height at birth (cm)§ | 50.0 (2.0) | 50.3 (1.8) | 49.7 (2.2) | 0.19 |
| Gestational age (weeks)§ | 38.5 (1.7) | 38.8 (1.5) | 38.2(1.9) | 0.20 |
| Breast feeding for at least 1 month£ | 93.3% | 95.3% | 91.6% | 0.38 |
| Breast feeding (any type) | 6.49 (4.72) | 6.66 (4.73) | 6.33 (4.74) | 0.51 |
| Never | 8.33% | 6.25% | 10.29% | |
| 1 month | 28.03% | 29.69% | 26.47% | |
| 7 months | 30.30% | 29.69% | 30.88% | |
| 12 months | 33.33% | 34.38% | 32.35% | |
| Mental Development Index | ||||
| 24 months | 86.74 (18.81) | 84.36 (10.88) | 88.93(10.35) | 0.01 |
| 30 months | 89.60 (9.19) | 87.42 (8.86) | 91.39 (9.12) | 0.01 |
| 36 months | 91.23 (9.21) | 90.62(9.30) | 91.78 (9.18) | 0.5 |
| Psychomotor Development Index | ||||
| 24 months | 93.25 (9.63) | 93.65 (8.94) | 92.81 (10.39) | 0.62 |
| 30 months | 92.93 (11.08) | 95.18 (11.98) | 90.18 (9.24) | 0.01 |
| 36 months | 94.73 (10.69) | 96.9 (11.60) | 92.28 (9.05) | 0.02 |
§
Sample mean and interquartile range, Wilcoxon test
£
Proportion, Test of equal proportions