Risk Factors for Periacetabular Osteolysis and Wear in Asymptomatic Patients with Uncemented Total Hip Arthroplasties

Table 5

Logistic regression model with wear as outcome.

Variable	Univariable			Multivariable
	Odds ratio	Confidence interval	value	Odds ratio	Confidence interval	value
Cup age at time for investigation	1.2	1.0–1.4	0.062	1.3	1.0–1.5	0.016
Patient age at operation	0.9	0.6–1.4	0.690	0.9	0.8–3.0	0.753
Male versus Female	1.3	0.7–2.4	0.407	1.6	0.8–3.0	0.190
UCLA	1.0	0.9–1.3	0.742
Original liner^* contin. data	0.1	0.0–0.4	0.001
Original liner categ. < 6 mm	0.3	0.2–0.7	0.003	0.3	0.1–0.6	0.001
BMI^*	1.1	0.6–2.1	0.650
Anteversion^*	1.0	0.8–1.3	0.686
Inclination^*	1.3	0.9–1.8	0.156

Modelled as continuous variables but presented in units of ten.