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Characteristics of the study population (n=5343)
| Characteristics | Number of contacts (%) |
|---|---|
| Male sex | 2830 (53) |
| Age distribution | |
| <1 month | 13 (0.2) |
| 1 month to <3 months | 207 (3.9) |
| 3 months to <6 months | 310 (5.8) |
| 6 months to <12 months | 902 (16.9) |
| 1 year to <5 years | 2943 (55.1) |
| 5 years to <12 years | 968 (18.1) |
