Table 5.

Risk of revision following hip replacement in patients aged < 60 years of age (simple and multivariable analyses)

		Simple			Multivariable
	HR	95% CI	p-value	HR	95% CI	p-value
Females (n = 11,622)
Best cemented (n = 548)	1			1
Other cemented (n = 412)	3.06	0.81–11.5	0.1	3.12	0.83–11.8	0.1
Best hybrid (n = 642)	1.42	0.34–5.94	0.6	1.39	0.33–5.78	0.7
Other hybrid (n = 1,340)	2.87	0.85–9.65	0.1	2.78	0.83–9.35	0.1
Best cementless (n = 454)	1.47	0.30–7.24	0.6	1.50	0.30–7.38	0.6
Other cementless (n = 4,880)	3.45	1.10–10.9	0.03	3.35	1.06–10.6	0.04
Best resurfacing (n = 432)	5.12	1.50–17.5	0.009	4.95	1.45–16.9	0.01
Other resurfacing (n = 2,914)	6.57	2.09–20.6	0.001	6.36	2.02–30.0	0.002
Males (n = 13,087)
Best cemented (n = 337)	1			1
Other cemented (n = 255)	0.78	0.17–3.46	0.7	0.77	0.17–3.45	0.7
Best hybrid (n = 498)	0.48	0.11–2.16	0.3	0.48	0.11–2.16	0.3
Other hybrid (n = 758)	1.40	0.45–4.35	0.6	1.34	0.43–4.17	0.6
Best cementless (n = 466)	0.62	0.14–2.79	0.5	0.62	0.14–2.78	0.5
Other cementless (n = 3,717)	1.51	0.55–4.18	0.4	1.46	0.53–4.05	0.4
Best resurfacing (n = 6,247)	1.01	0.37–2.76	1.0	1.02	0.37–2.78	1.0
Other resurfacing (n = 809)	2.08	0.72–6.00	0.2	2.06	0.71–5.97	0.2