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. 2020 Aug 17;20:469. doi: 10.1186/s12884-020-03149-7

Table 1.

Non-modifiable participant characteristics by stage of labour at admission (N = 697)

Outcome Total Active labour (≥4 cm) (n = 471) Early labour (< 4 cm) (N = 226) ORa 95% CI p
% (n) % (n) % (n)
Primiparous 38.5 (268) 31.0 (146) 54.0 (122) 2.61 1.88, 3.62 < .001
Primigravida 63.4 (441) 63.0 (296) 64.2 (145) 1.05 0.76, 1.46 .762
Previous caesarean 8.0 (56) 7.2 (34) 9.7 (22) 1.39 0.79, 2.43 .254
M (SD) M (SD) M (SD) ORa 95% CI p
Maternal age (years) 27.94 (8.99) 28.24 (9.05) 27.34 (8.86) 0.99 0.97, 1.01 .224
Distance to hospital (km) 14.36 (14.75) 13.74 (12.74) 15.64 (18.19) 1.01 1.00, 1.02 .119

Referent category is admission in active labour