HPV B19 point prevalence, incidence, and cumulative prevalence rate by age groups
Age group, y . | No. of children at study entry . | Children with past HPV B19 infection at study entry, no. (%)* . | Incidence rate of HPV B19 during the study period per 100 patient-years (95% Cl)† . | Cumulative HPV B19 infection rate (%) . |
|---|---|---|---|---|
| 1-5 | 227 | 17 (7.5) | 10.0 (5.7-14.3) | By age 5 y (26.0) |
| 5-10 | 178 | 56 (31.5) | 12.1 (7.4-16.9) | By age 10 y (47.0) |
| 10-15 | 128 | 55 (43.0) | 11.8 (6.0-17.7) | By age 15 y (64.1) |
| 15-21 | 100 | 59 (59.0) | 10.6 (3.1-18.0) | By age 20 y (73.2) |
| All | 633 | 187 | 11.3 (8.2-14.4) |
Age group, y . | No. of children at study entry . | Children with past HPV B19 infection at study entry, no. (%)* . | Incidence rate of HPV B19 during the study period per 100 patient-years (95% Cl)† . | Cumulative HPV B19 infection rate (%) . |
|---|---|---|---|---|
| 1-5 | 227 | 17 (7.5) | 10.0 (5.7-14.3) | By age 5 y (26.0) |
| 5-10 | 178 | 56 (31.5) | 12.1 (7.4-16.9) | By age 10 y (47.0) |
| 10-15 | 128 | 55 (43.0) | 11.8 (6.0-17.7) | By age 15 y (64.1) |
| 15-21 | 100 | 59 (59.0) | 10.6 (3.1-18.0) | By age 20 y (73.2) |
| All | 633 | 187 | 11.3 (8.2-14.4) |