Age group | Pneumococcal Serotypes | Carriage | Invasive Pneumococcal Disease | Expected IPD | ||||
---|---|---|---|---|---|---|---|---|
n (%) colonized Pre-Vaccine (2007–2009): Period-1 | n (%) colonized Post-vaccine (2012): Period-2 | Relative Risk (95% CI) | Average Incidence (per 100000) 2005 to 2008: Period-1 | Incidence (per 100000) 2012: Period-2 | Incidence risk reduction (95% Confidence Interval) | Incidence (per 100000)a | ||
Children (0–2 years) | 7-valent-6A | 661 (35.9) | 88 (11.2) | 0.31 (0.25–0.38) | 149.0 | 14.5 | 0.10 (0.06–0.17) | 46.5 |
1,3,5,7F,19A | 65 (3.5) | 23 (2.9) | 0.83 (0.52–1.32) | 32.1 | 8.3 | 0.26 (0.12–0.55) | 26.6 | |
NVT | 370 (20.1) | 337 (42.8) | 2.13 (1.89–2.41) | 37.7 | 37.3 | 0.99 (0.63–1.56) | 80.3 | |
All pneumococcal | 1096 (59.5) | 448 (56.9) | 0.96 (0.89–1.03) | 220.9 | 60.2 | 0.27 (0.20–0.36) | 211.2 | |
Women (15 to 45 years) | 7-valent-6A | 129 (7.0) | 22 (1.4) | 0.20 (0.13–0.32) | 13.5 | 3.8 | 0.28 (0.09–0.87) | 2.7 |
1,3,5,7F,19A | 41 (2.2) | 27 (1.8) | 0.79 (0.49–1.28) | 11.7 | 6.3 | 0.54 (0.20–1.42) | 9.6 | |
NVT | 175 (9.5) | 127 (8.3) | 0.87 (0.70–1.08) | 7.1 | 9.7 | 1.36 (0.52–3.58) | 6.2 | |
All pneumococcal | 345 (18.7) | 176 (11.5) | 0.61 (0.52–0.73) | 32.3 | 19.8 | 0.61 (0.35–1.07) | 19.9 |