Unadjusted analysis | Adjusted analysis | |||||
---|---|---|---|---|---|---|
Type of infection | No. of subjects | No. (%) of vaccinated | ORa (95% CI) | Effectiveness of vaccination % (95% CI) | ORb (95% CI) | Effectiveness of vaccination % (95% CI) |
IPD by vaccine types | (c) | |||||
Case patients | 48 | 15 (31.3) | 0.28 (0.11-0.67) | 72% (33-89) | 0.23 (0.08-0.60) | 77% (40-92) |
Control subjects | 96 | 52 (54.2) | p = 0.005 | p = 0.003 | ||
Overall IPD | (d) | |||||
Case patients | 88 | 34 (38.6) | 0.34 (0.18-0.63) | 66% (37-82) | 0.28 (0.15-0.54) | 72% (46-85) |
Control subjects | 176 | 104 (59.1) | p = 0.001 | p < 0.001 |