|  | Full-Scale IQ | Non-verbal IQ | Verbal IQ |
---|---|---|---|---|
 | N | Mean (SD) | Mean (SD) | Mean (SD) |
Sex | Â | Â | Â | Â |
Males | 33 | 103.4 (9.9) | 99.9 (10.7) | 106.9 (9.1) |
Females | 22 | 105.0 (7.4) | 102.4 (8.4) | 107.2 (7.5) |
Maternal education | Â | Â | Â | Â |
<10 years | 11 | 99.5 (7.0) | 94.7 (7.5) | 104.4 (6.7) |
≥10 years | 44 | 105.2 (9.0)* | 102.4 (9.8)** | 107.7 (8.8) |
Paternal education | Â | Â | Â | Â |
<10 years | 14 | 103.7 (8.9) | 99.9 (9.9) | 107.5 (8.1) |
≥10 years | 38 | 104.5 (9.2) | 101.6 (10.1) | 107.2 (8.8) |
Crowding index | Â | Â | Â | Â |
< median | 22 | 105.9 (8.2) | 102.6 (8.9) | 108.8 (8.0) |
≥median | 33 | 102.8 (9.3) | 99.8 (10.4) | 105.8 (8.6) |
Composite SES index | Â | Â | Â | Â |
Low SES | 20 | 102.6 (8.3) | 99.0 (9.3) | 106.2 (7.5) |
High SES | 35 | 104.8 (9.3) | 102.0 (10.1) | 107.5 (9.0) |
H. pylori infection | Â | Â | Â | Â |
Negative | 30 | 106.3 (6.0) | 103.4 (7.1) | 108.9 (6.4) |
Positive | 22 | 100.5 (11.5)** | 97.2 (12.5)** | 103.8 (10.2) ** |
Hb at early childhood b | 51 | 0.14 | 0.21 | 0.04 |
Current Hb level b | 53 | 0.28** | 0.26* | 0.28 |
HAZ at early childhood b | 54 | 0.02 | 0.05 | -0.02 |
WHZ at early childhood b | 54 | -0.04 | -0.02 | -0.08 |
Current BMIZ b | 53 | -0.05 | -0.08 | -0.01 |