| Vitamin D supplementation group: prenatal; postpartum dose (IU/week) | ||||
---|---|---|---|---|---|
A: 0;0 | B: 4200;0 | C: 16,800;0 | D: 28,000;0 | E: 28,000;28,000 | |
Number of infants with ≥ 1 nasal swabA | 206 | 218 | 208 | 216 | 212 |
Infants ever positive for detection of nasal pneumococcal carriage (≥ 1 positive swab) (%) | 186 (90%) | 188 (86%) | 191 (92%) | 193 (89%) | 190 (90%) |
Relative hazard of pneumococcal acquisition (95% CI)B | REFE | 0.87 (0.70, 1.08) | 1.16 (0.94, 1.44) | 1.05 (0.85, 1.30) | 1.05 (0.84, 1.30) |
Median time until 1st detection of pneumococcal carriage (weeks)B | 7.1 | 8.1 | 6.2 | 6.8 | 6.8 |
Positive swabs in pneumococcal density analysis (N)C | 500 | 501 | 560 | 555 | 499 |
Pneumococcal density: percent difference (95% CI)D | REFE | − 9.7 (− 39, 33) | − 10.7 (− 40, 34) | − 3.4 (− 34, 42) | − 8.9 (− 39, 36) |