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Vaccine status at study completion
| N | Exactly N doses (%) | At least N doses (%) |
| 0 | 107 (7.1) | 1497 (100.0) |
| 1 | 147 (9.8) | 1390 (92.9) |
| 2 | 316 (21.1) | 1243 (83.0) |
| 3 | 927 (61.9) | 927 (61.9) |
Number of infants that received at least (or exactly) 0–3 doses of diphtheria–tetanus–pertussis at study completion. Percentages are rounded (out of 1497 attending infants).
