Table 2. Distribution of children within age-groups according to age at enrollment and age at first dose, Goiania, Dec/2010 Feb/2011.
| Age-group at 1st PCV10 dose§ | Age-group at enrollment‡ | Total n (%) | |
| 7–11 m n (%) | 15–18 m n (%) | ||
| ≤6 m | 662 (93.6) | 29 (5.0) | 691 (53.7) |
| 7–11 m | 45 (6.4) | 240 (41.4) | 285 (22.1) |
| 12–18 m | 0 | 311 (53.6) | 311 (24.2) |
| Total | 707 (100.0) | 580 (100.0) | 1287 (100.0) |
‡
That is, the age-group at the moment of nasopharyngeal specimen collection.
§
Unvaccinated children were classified according to age at PCV10 introduction into National Immunization Program.