Exposed groups | Children with below-average IQ | Children with average IQ | OR (95% CI) | Z | P value |
---|---|---|---|---|---|
Full-scale IQ | |||||
Highly exposed (56) | 24 | 32 | 1.54 (0.7–3.34) | 1.098 | 0.272 |
Less exposed (55) | 18 | 37 | |||
Verbal IQ | |||||
Highly exposed (56) | 12 | 44 | 1.39 (0.53–3.63) | 0.682 | 0.490 |
Less exposed (55) | 9 | 46 | |||
Performance IQ | |||||
Highly exposed (56) | 42 | 14 | 2.50 (1.12–5.59) | 2.232 | 0.03* |
Less exposed (55) | 30 | 25 |