Logistic regression analysis
| Odds ratio | 95% CI | |
|---|---|---|
| Group (control = 0, case = 1) | 12.0 | 4.1 – 35.3 |
| Sex (male = 0, female = 1) | 0.80 | 0.4 – 1.6 |
| Level of intellectual disability (mild = 0, moderate = 1, severe = 2) | 1.5 | 0.9 – 2.7 |
| Age (below median = 0, median and higher = 1) | 0.6 | 0.3 – 1.2 |
| Reference value = 1 |