| Season of mid-gestation | Season of vaccination | ||||||
---|---|---|---|---|---|---|---|---|
Vaccine | Dry/Harvest season (n = 335) | Rainy/Hungry season (n = 375) | Effect size (95%CI)a | p-valueb | Dry/Harvest season (n = 486) | Rainy/Hungry season (n = 224) | Effect size (95%CI)a | p-valueb |
12 weeks | ||||||||
 Diphtheria | 0.23 (0.20, 0.26) | 0.07 (0.07, 0.08) | 50.8 (45.2, 56.4) | < 0.001 | 0.08 (0.08, 0.09) | 0.35 (0.31, 0.39) | −62.3 (−67.2, −57.4) | < 0.001 |
 Tetanus | 0.75 (0.71, 0.78) | 0.54 (0.52, 0.55) | 14.4 (12.0, 16.7) | < 0.001 | 0.55 (0.54, 0.57) | 0.81 (0.78, 0.85) | − 16.9 (− 19.2, − 14.6) | < 0.001 |
 Pertussis | 6.1 (5.8, 6.5) | 4.1 (4.0, 4.3) | 17.2 (14.5, 19.9) | < 0.001 | 4.4 (4.3, 4.6) | 7.0 (6.6, 7.4) | −19.7 (−22.6, − 16.7) | < 0.001 |
24 weeks | ||||||||
 Diphtheria | 1.1 (1.1, 1.2) | 1.7 (1.6, 1.7) | −15.8 (− 17.8, − 13.8) | < 0.001 | 1.6 (1.6, 1.7) | 1.0 (0.98, 1.1) | 20.6 (18.9, 22.3) | < 0.001 |
 Tetanus | 3.5 (3.5, 3.6) | 3.5 (3.4, 3.6) | 0.30 (−1.3, 1.9) | 0.734 | 3.5 (3.5, 3.6) | 3.4 (3.3, 3.6) | 1.3 (−0.80, 3.3) | 0.230 |
 Pertussis | 103.1 (95.7, 111.1) | 74.5 (69.1, 80.3) | 14.1 (9.5, 18.7) | < 0.001 | 87.7 (82.7, 93) | 94.8 (87.1, 103.3) | −3.4 (−7.9, 1.1) | 0.142 |