Table 1.

Patient demographics based on type of implant revised

Characteristic
	Isolated acetabular revision of MoM		Isolated acetabular revision of MoP		OR	95% CI	p value
Number of patients	451		628
Sex
Female	277	61%	417	66%	0.83	0.64–1.07	0.157
Male	163	36%	200	32%	1.24	0.96–1.60	0.100
Age (years)
Younger than 65	83	18%	87	14%	1.43	1.03–1.99	0.033
65–69	87	19%	87	14%	1.51	1.09–2.10	0.012
70–74	108	24%	141	22%	1.11	0.83–1.48	0.483
75–79	96	21%	141	22%	0.95	0.71–1.28	0.735
80–84	48	11%	105	17%	0.60	0.42–0.87	0.006
85 and older	23	5%	60	10%	0.52	0.31–0.85	0.008
Charlson Comorbidity Index
Median	6		6
SD	4.17		5.40
Range	1–34		1–58

MoM = metal-on-metal; MoP = metal-on-polyethylene; OR = odds ratio; CI = confidence interval.