| Group A | Group B | Group C | Group D | Group E | Overall |
---|---|---|---|---|---|---|
Supplementation (prenatal/postpartum) | 0/0 | 4200; 0 | 16,800; 0 | 28,000; 0 | 28,000; 28,000 | – |
N (infants/swabs) | 206/737 | 218/761 | 208/798 | 216/781 | 212/715 | – |
Probability of positive status at day 189, % (95% CI)A,C | 74 (69, 78) | 72 (67, 77) | 76 (72, 80) | 76 (72, 80) | 77 (73, 82) | 75 (73, 77) |
Total time spent negative or positive during all carriage episodes, days (95% CI)A,C | Â | Â | Â | Â | Â | Â |
 Negative | 72.0 (64.4, 80.1) | 74.7 (67.5, 82.0) | 64.3 (57.7, 71.9) | 66.8 (59.4, 74.8) | 68.5 (61.8, 76.4) | 69.0 (65.7, 72.3) |
 Positive | 117.0 (108.9, 124.6) | 114.3 (106.8, 121.6) | 124.7 (117.0, 131.3) | 122.2 (114.2, 129.6) | 120.5 (112.6, 127.2) | 120.0 (116.7, 123.3) |
Hazard ratio of transitioning between episodes (95% CI)A,B | Â | Â | Â | Â | Â | Â |
 Negative to positive | REF | 0.99 (0.74, 1.33) | 1.29 (0.96, 1.74) | 1.08 (0.81, 1.46) | 0.94 (0.71, 1.26) | – |
 Positive to negative | REF | 1.09 (0.71, 1.67) | 1.16 (0.76, 1.78) | 0.94 (0.61, 1.46) | 0.76 (0.49, 1.19) | – |
Expected time until first positive episode, days (95% CI)A,C | 41.3 (32.7, 51.0) | 41.8 (34.2, 52.1) | 32.1 (25.8, 40.7) | 38.1 (29.9, 47.7) | 43.8 (35.2, 53.3) | 39.0 (35.5, 43.0) |
Ratio of negative to positive episodes: positive to negative episodesA,C | 2.81 (2.25, 3.71) | 2.56 (2.05, 3.14) | 3.11 (2.55, 3.91) | 3.24 (2.59, 4.21) | 3.48 (2.64, 4.07) | 3.02 (2.70, 3.34) |