Variables | Non-exposed group | Fetal-exposed group | Infant-exposed group | Preschool-exposed group |
Female | ||||
Severely affected area | ||||
Prevalence (%) | 5.0 | 5.3 | 7.5 | 4.7 |
p* | 0.907 | 0.359 | 0.861 | |
OR (95% CI)* | Ref. | 1.05 (0.44 to 2.50) | 1.53 (0.62 to 3.81) | 0.93 (0.43 to 2.03) |
p† | 0.514 | 0.208 | 0.479 | |
OR (95% CI)† | Ref. | 1.39 (0.52 to 3.74) | 1.98 (0.68 to 5.72) | 0.67 (0.23 to 2.01) |
Less severely affected area | ||||
Prevalence (%) | 6.9 | 7.0 | 4.1 | 9.4 |
p* | 0.970 | 0.218 | 0.176 | |
OR (95% CI)* | Ref. | 1.01 (0.57 to 1.81) | 0.57 (0.23 to 1.39) | 1.41 (0.86 to 2.32) |
p† | 0.238 | 0.644 | 0.359 | |
OR (95% CI)† | Ref. | 1.55 (0.75 to 3.23) | 0.77 (0.24 to 2.39) | 1.40 (0.68 to 2.89) |
p for interaction between area and group* | Ref. | 0.498 | 0.252 | 0.036 |
p for interaction between smoking and group* | Ref. | 0.907 | 0.003 | 0.028 |
p for interaction between area and group† | Ref. | 0.686 | 0.179 | 0.132 |
p for interaction between smoking and group† | Ref. | 0.999 | 0.614 | 0.0.628 |
Male | ||||
Severely affected area | ||||
Prevalence (%) | 6.3 | 5.9 | 13.1 | 6.5 |
p* | 0.897 | 0.030 | 0.930 | |
OR (95% CI)* | Ref. | 0.94 (0.39 to 2.29) | 2.26 (1.08 to 4.73) | 1.03 (0.52 to 3.03) |
p† | 0.677 | 0.023 | 0.686 | |
OR (95% CI)† | Ref. | 0.75 (0.20 to 2.87) | 3.16 (1.17 to 8.51) | 0.81 (0.30 to 2.22) |
Less severely affected area | ||||
Prevalence (%) | 5.8 | 6.9 | 8.4 | 5.7 |
p* | 0.566 | 0.237 | 0.974 | |
OR (95% CI)* | Ref. | 1.20 (0.64 to 2.24) | 1.50 (0.77 to 2.93) | 0.99 (0.55 to 1.80) |
p† | 0.584 | 0.178 | 0.853 | |
OR (95% CI)† | Ref. | 1.28 (0.53 to 3.07) | 1.82 (0.76 to 4.36) | 1.08 (0.45 to 2.60) |
p for interaction between area and group* | Ref. | 0.734 | 0.217 | 0.709 |
p for interaction between smoking and group* | Ref. | 0.409 | 0.300 | 0.207 |
p for interaction between area and group† | Ref. | 0.344 | 0.127 | 0.887 |
p for interaction between smoking and group† | Ref. | 0.950 | 0.103 | 0.696 |
*Single variance binary logistic regression model.
↵†Multivariable logistic regression model, adjusted for smoking, drinking, family economic status and the highest educational attainment of parents.