Table 3.

Univariate and multivariate logistic regression analysis comparing follow-up data (26–54 months) for SF-36 PF (physical function) and WOMAC function in patients operated on with hybrid or cemented technique (dependent variables) adjusted for age, sex, follow-up time and baseline values (explanatory variables) in the multivariate analysis.

variable	N	Univariate OR	95% CI	p-value
Age	198	*0.62	0.53–0.72	<0.01
Sex	198	0.52	0.28–0.97	0.04
Follow-up time	198	0.99	0.96–1.02	0.49
SF-36 PF baseline	196	1.00	0.98–1.02	0.98
SF-36 PF follow-up	196	*1.02	1.00–1.03	<0.01
WOMAC function baseline	196	1.02	0.99–1.05	0.16
WOMAC function follow-up	94	*1.02	1.00–1.04	<0.01

*per one year or scale unit increase. OR less than 1 means that with increasing age there is a less probability of being operated with hybrid technique. OR = odds ratio, 95% CI = 95% confidence interval