Table 1:

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