Without AC | With AC | ||||||
BMI (kg/m2) | n | Mean IQ | IQ ≥ 3 (n) | Mean IQ | IQ ≥ 3 (n) | P | Normals (%) |
<30 | 18 | 3.6 ± 0.5 | 18 | 3.6 ± 0.5 | 18 | NS | 50 |
30–34.9 | 17 | 3.4 ± 0.6 | 16 | 3.4 ± 0.6 | 16 | NS | 88 |
35–39.5 | 15 | 2.8 ± 0.7 | 10 | 2.9 ± 0.5 | 12 | NS | 67 |
40–44.5 | 16 | 1.9 ± 0.8 | 4 | 2.4 ± 0.7 | 8 | NS | 75 |
NS = not significant; IQ = image quality.