Table 3.

Impact of anemia (World Health Organization-defined) on morbidity and mortality

Outcome	Anemia		Odds ratio (95% CI)	p value	Adjusted odds ratio (95% CI)	p value
	No	Yes
Periprosthetic joint infections	259 (2.12)	130 (4.35)	1.88 (1.38–2.56)	0.001	1.95 (1.41–2.69)	< 0.001
30-day mortality	21 (0.17)	12 (0.40)	0.771 (0.140–4.24)	0.764	0.585 (0.097–3.51)	0.557
90-day mortality	28 (0.23)	18 (0.60)	1.43 (0.485–4.24)	0.514	1.54 (0.501–4.71)	0.453
1-year mortality	88 (0.72)	54 (1.8)	1.79 (0.985–3.25)	0.056	1.81 (0.997–3.29)	0.051

Logistic regression model adjusting for variables that were found to be significant in bivariate analysis.