Table 4.
Univariate analysis of IQ scores correlates - low SES village a
| Full-Scale IQ | Non-Verbal IQ | Verbal IQ | ||
|---|---|---|---|---|
| N | Mean (SD) | Mean (SD) | Mean (SD) | |
| Sex | ||||
| Males | 42 | 89.1 (12.0) | 88.0 (11.2) | 91.5 (13.5) |
| Females | 41 | 91.1 (12.1) | 88.8 (10.8) | 94.3 (14.0) |
| Maternal education | ||||
| <10 years | 68 | 88.8 (11.9) | 87.8 (10.1) | 90.8 (13.8) |
| ≥10 years | 15 | 96.0 (11.2)** | 91.0 (14.4) | 101.6 (10.1)** |
| Paternal education | ||||
| <10 years | 50 | 89.7 (13.7) | 89.0 (11.6) | 91.5 (15.1) |
| ≥10 years | 22 | 91.6 (10.4) | 86.7 (14.1) | 97.2 (10.4) |
| Crowding index | ||||
| < median | 37 | 93.2 (12.3) | 90.2 (13.0) | 97.1 (13.1) |
| ≥ median | 46 | 87.6 (11.3)** | 86.9 (8.9) | 89.5 (13.5)** |
| Composite SES index | ||||
| Low SES | 38 | 88.3 (12.9) | 88.0 (10.7) | 90.0 (14.7) |
| High SES | 45 | 91.6 (11.1) | 88.8 (11.3) | 95.4 (12.6)* |
| H. pylori infection | ||||
| Negative | 9 | 89.8 (11.3) | 86.7 (9.6) | 94.1 (14.9) |
| Positive | 63 | 90.2 (12.5) | 89.1 (11.4) | 92.4 (14.1) |
| Hb at early childhood b | 74 | 0.21* | 0.30** | 0.14 |
| Current Hb level b | 83 | 0.08 | 0.03 | 0.11 |
| HAZ at early childhood b | 81 | 0.28** | 0.27** | 0.26** |
| WHZ at early childhood b | 80 | 0.04 | 0.05 | 0.04 |
| Current BMIZ b | 83 | 0.03 | 0.05 | 0.01 |
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.