Table 4.

Orthopedic complications occurring within 1 year of surgery. Group 1 was used as the reference group

	Odds ratio (95% CI)
	Group 2	Group 3	p-value
Deep infection	1.8 (0.9–3.6)	1.5 (0.6–4.1)	0.3
Revision	1.4 (0.4–4.4)	0.7 (0.1–5.6)	0.8
MUA	0.2 (0.04–0.77)	N/A	0.02a

^a2 × 2 chi-squared test for patients in groups 1 and 2.