Association between Maternal Pelvis Height and Intrapartum Foetal Head Moulding in Ugandan Mothers with Spontaneous Vertex Deliveries

Table 4

Multivariate regression model for foetal head moulding by the different study variables.

Variable	Univariate model IRR	Final multivariate model: IRR (95% CI, value)
Height (cm)	1.00	0.97 (0.97 to 1.00, 0.05)
Birth weight	1.38	1.90 (1.24 to 2.89, <0.01)
Ruptured membranes	0.12	0.10 (0.03 to 0.32, <0.01)
Duration of active phase	1.17	1.21 (1.12 to 1.31, <0.01)
Pelvis height (cm)	0.92	0.88 (0.80 to 0.97, 0.01)