Table 3.

Relative risks (RR) of revision for the Lubinus SPII (Cox regression). Parameters with a value of 1 are reference

		RR	95% CI	p-value
Dislocation
Age, years	< 50	0.5	0.2–1.3	0.2
	50–59	0.9	0.6–1.3	0.5
	60–75	0.9	0.7–1.1	0.3
	> 75	1
Sex	Female	1
	Male	1.2	1.0–1.5	0.03
Order	First hip	1.0	0.8–1.3	0.9
	Second hip	1
Diagnosis	Osteoarthritis	1
	Fracture	3.2	2.6–4.0	< 0.001
	Other	1.5	1.0–2.1	0.03
Cup	FAL	1.7	1.3–2.4	< 0.001
	Lubinus All-Poly	1
Head	Ceramic	0.7	0.5–1.0	0.06
	Co-Cr	1
Approach	ALT	0.7	0.5–0.8	0.001
	Posterior	1
Side	Left	1
	Right	1.0	0.8–1.2	0.8
Loosening
Age, years	< 50	8.4	5.4–13.0	< 0.001
	50–59	6.0	4.3–8.3	< 0.001
	60–75	3.0	2.2–4.0	< 0.001
	> 75	1
Sex	Female	1
	Male	2.1	1.8–2.5	< 0.001
Order	First hip	1.0	0.8–1.3	1.0
	Second hip	1
Diagnosis	Osteoarthritis	1
	Fracture	1.3	0.9–1.8	0.1
	Other	1.2	0.9–1.6	0.2
Cup	FAL	0.5	0.3–1.0	0.05
	Lubinus All-Poly	1
Head	Ceramic	0.5	0.3–0.7	< 0.001
	Co-Cr	1
Approach	ALT	1.3	1.0–1.6	0.02
	Posterior	1
Side	Left	1
	Right	1.2	1.0–1.4	0.03
Infection
Age, years	< 50	1.9	1.0–3.7	0.07
	50–59	1.1	0.7–1.7	0.7
	60–75	0.9	0.7–1.2	0.7
	> 75	1
Sex	Female	1
	Male	2.2	1.7–2.7	< 0.001
Order	First hip	0.7	0.6–1.0	0.04
	Second hip	1
Diagnosis	Osteoarthritis	1
	Fracture	1.8	1.3–2.6	< 0.001
	Other	1.6	1.1–2.4	0.03
Cup	FAL	0.7	0.4–1.1	0.1
	Lubinus All-Poly	1
Head	Ceramic	0.7	0.5–1.1	0.1
	Co-Cr	1
Approach	ALT	0.9	0.70–1.2	0.6
	Posterior	1
Side	Left	1
	Right	1.2	0.9–1.5	0.2