Table 4.

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	Multivariate OR	95% CI	p-value
Age	198	*0.57	0.48–0.69	<0.01
Sex	198	0.29	0.08–1.06	0.06
Follow-up time	198	0.96	0.90–0.16	0.16
SF-36 PF baseline	196	*0.95	0.91–0.99	<0.01
SF-36 PF follow-up	196	1.03	0.98–1.06	0.07

*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