<34 weeks <34 weeks 34-<37 weeks 34-<37 weeks 37-<38 weeks 37-<38 weeks 38-<39 weeks 38-<39 weeks 39-<40 weeks 39-<40 weeks 40-<41 weeks 40-<41 weeks 41 weeks 41 weeks Overall Overall RR (95% CI)
AZ (N = 6*) Pf (N = 8) AZ (N = 22) Pf (N = 26) AZ (N = 53) Pf (N = 56**) AZ (N = 175) Pf (N = 164) AZ (N = 145)
Pf (N = 203)
AZ (N = 39) Pf (N = 55) AZ (N = 1) Pf (N = 1) AZ (N = 441) Pf (N = 513)
<p10 - n (%) 1 (16.7) 1 (12.5) 2 (9.1) 6 (23.1) 3 (5.7) 2 (3.6) 7 (4.0) 5 (3.0) 2 (1.4) 12 (5.9) 1 (2.6) 0 (0) 0 (0) 0 (0) 16 (3.6%) 26 (5.1%) 1.40 (0.76, 2.57)
p10-p25 - n (%) 0 (0) 0 (0) 2 (9.1) 2 (7.7) 4 (7.5) 7 (12.5) 20 (11.4) 16 (9.8) 14 (9.7) 26 (12.8) 7 (17.9) 8 (14.5) 0 (0) 0 (0) 47 (10.7%) 59 (11.5%) 1.08 (0.75, 1.55)
p25-p50 - n (%) 2 (33.3) 2 (25.0) 6 (27.3) 10 (38.5) 12 (22.6) 13 (23.2) 39 (22.3) 38 (23.2) 45 (31.0) 53 (26.1) 10 (25.6) 11 (20.0) 0 (0) 1 (100) 114 (25.9%) 128 (25%) 0.97 (0.78, 1.20)
p50-75 - n (%) 1 (16.7) 1 (12.5) 5 (22.7) 3 (11.5) 13 (24.5) 21 (37.5) 38 (21.7) 41 (25.0) 43 (29.7) 49 (24.1) 14 (35.9) 23 (41.8) 1 (100) 0 (0) 115 (26.1%) 138 (26.9%) 1.03 (0.83, 1.28)
p75-p90 - n (%) 0 (0) 1 (12.5) 2 (9.1) 3 (11.5) 8 (15.1) 4 (7.1) 50 (28.6) 41 (25.0) 27 (18.6) 41 (20.2) 6 (15.4) 9 (16.4) 0 (0) 0 (0) 93 (21.1%) 99 (19.3%) 0.92 (0.71, 1.18)
>p90 - n (%) 0 (0) 3 (37.5) 5 (22.7) 2 (7.7) 13 (24.5) 8 (14.3) 21 (12.0) 23 (14.0) 14 (9.7) 22 (10.8) 1 (2.6) 4 (7.3) 0 (0) 0 (0) 54 (12.2%) 62 (12.1%) 0.99 (0.70, 1.39)
Overall - n (%) 6* (1.4) 8 (1.6) 22 (5.0) 26 (5.1) 53 (12) 56** (10.9) 175 (39.7) 164 (32.0) 145 (32.9) 203 (39.6) 39 (8.8) 55 (10.7) 1 (0.2) 1 (0.2)
RR (95% CI) 1.15 (0.40, 3.28) 1.15 (0.40, 3.28) 1.02 (0.58, 1.77) 1.02 (0.58, 1.77) 0.91 (0.64, 1.29) 0.91 (0.64, 1.29) 0.81 (0.68, 0.96) 0.81 (0.68, 0.96) 1.20 (1.01, 1.43) 1.20 (1.01, 1.43) 1.21 (0.82, 1.79) 1.21 (0.82, 1.79) 0.86 (0.05, 13.7) 0.86 (0.05, 13.7)