Total number of patients and distribution of patient age and sex in the 3 age groups of the study
| Group | 0–4 yr | 5–9 yr | 10–16 yr | 0–16 yr |
|---|---|---|---|---|
| Baseline cohort | ||||
| ♂ | 10 | 11 | 20 | 41 |
| ♀ | 7 | 7 | 20 | 34 |
| Total (No.) | 17 | 18 | 40 | 75 |
| Follow-up cohort | ||||
| ♂ | 17 | 17 | 21 | 55 |
| ♀ | 8 | 9 | 32 | 49 |
| Total (No.) | 25 | 26 | 53 | 104 |