Table 3.
Univariate analysis of IQ scores correlates -intermediate SES village a
| Full-Scale IQ | Non-Verbal IQ | Verbal IQ | ||
|---|---|---|---|---|
| N | Mean (SD) | Mean (SD) | Mean (SD) | |
| Sex | ||||
| Males | 38 | 103.6 (7.2) | 100.3 (7.9) | 106.8 (7.1) |
| Females | 24 | 110.3 (9.0)** | 109.2 (10.3)*** | 111.0 (8.8)** |
| Maternal education | ||||
| <10 years | 21 | 101.1 (7.6) | 99.6 (9.5) | 103.4 (6.6) |
| ≥10 years | 41 | 108.7 (8.0)** | 105.9 (9.4)** | 110.0 (7.4)*** |
| Paternal education | ||||
| <10 years | 24 | 102.8 (8.0) | 100.5 (8.8) | 105.1 (7.5) |
| ≥10 years | 38 | 108.4 (8.3)** | 105.8 (10.0)** | 110.5 (7.5)** |
| Crowding index | ||||
| < median | 31 | 106.5 (9.8) | 104.2 (11.2) | 108.5 (8.8) |
| ≥ median | 31 | 106.0 (7.2) | 103.3 (8.4) | 108.4 (7.3) |
| Composite SES index | ||||
| Low SES | 29 | 103.4 (8.4) | 101.5 (10.0) | 105.2 (7.6) |
| High SES | 33 | 108.7 (7.9)** | 105.7 (9.4)* | 111.2 (7.3)*** |
| H. pylori infection | ||||
| Negative | 35 | 106.1 (9.8) | 104.1 (11.0) | 107.9 (9.2) |
| Positive | 22 | 106.5(6.9) | 102.8 (8.2) | 109.8 (6.3) |
| Hb at early childhood b | 43 | -0.15 | -0.08 | -0.22 |
| Current Hb level b | 58 | 0.22* | 0.22* | 0.17 |
| HAZ at early childhood b | 62 | 0.07 | 0.15 | -0.01 |
| WHZ at early childhood b | 62 | 0.22 | 0.22 | 0.17 |
| Current BMIZ b | 58 | 0.25* | 0.21 | 0.24* |
a P value were obtained by the Student t test unless otherwise is specified.
b Pearson correlation.
*P < 0.1, **P < 0.05, ***P < 0.01.
Hb: hemoglobin, HAZ: Height for Age Z score, WHZ: Weight for Height Z score, BMIZ: Body Mass Index Z score.