Gestational age at delivery (weeks)
Adjusted excess risk ratio (95% CI)
Controlled direct effect (95% CI)
Attributed to mediation % (95% CI)
Due to interaction % (95% CI)
Caesarean delivery without trial of labour Caesarean delivery without trial of labour Caesarean delivery without trial of labour Caesarean delivery without trial of labour Caesarean delivery without trial of labour
22-33* 61.0 (55.0, 67.2) 93.6 (90.8, 95.6) -12.7 (-17.2, -9.1) 7.2 (5.2, 9.9)
34-36 79.8 (73.9, 86.0) 72.8 (69.1, 76.5) 4.0 (3.0, 5.1) 27.0 (23.4, 30.7)
37-38 79.7 (74.6, 84.4) 78.6 (74.0, 83.4) 3.9 (2.8, 5.0) 23.0 (18.1, 27.6)
39-40 0.0 (Reference) 0.0 (Reference) 0.0 (Reference) 0.0 (Reference)
≥41 50.9 (46.1, 55.6) 101.1 (96.4, 105.2) -5.6 (-7.6, -4.2) 3.2 (-0.7, 7.9)
Caesarean delivery with trial of labour Caesarean delivery with trial of labour Caesarean delivery with trial of labour Caesarean delivery with trial of labour Caesarean delivery with trial of labour
22-33* 93.3 (77.0, 112.4) 17.9 (13.6, 22.6) -1.0 (-6.8, 4.3) 82.3 (77.5, 86.3)
34-36 59.4 (54.0, 65.0) 29.5 (24.4, 34.4) 23.3 (21.1, 25.8) 66.0 (61.2, 71.0)
37-38 38.4 (34.9, 42.1) 49.4 (41.3, 56.8) 12.9 (10.9, 15.1) 51.0 (43.6, 59.0)
39-40 0.0 (Reference) 0.0 (Reference) 0.0 (Reference) 0.0 (Reference)
≥41 19.8 (15.6, 24.0) 88.5 (82.5, 93.2) 4.3 (2.9, 6.1) 5.4 (1.4, 10.1)