Thromboembolic and infectious complication risks in TKA and UKA: evidence from a Japanese nationwide cohort

Table 6 Multivariate logistic analysis for risk factors for surgical site infection after knee replacement surgery during hospitalization

Variable	Odds ratio (95% CI)	χ² statistics	p-value
Age	0.983 (0.972–0.993)	9.9	0.0016*
Sex (male)	1.228 (1.024–1.472)	4.8	0.026
Total knee arthroplasty	1.512 (1.277–1.790)	23.6	< 0.0001*
Hypertension	1.471 (1.231–1.758)	17.6	< 0.0001*
Diabetes	0.898 (0.722–1.118)	0.9	0.34
Cerebrovascular disease	1.193 (0.758–1.877)	0.6	0.44
Chronic renal dysfunction	0.816 (0.447–1.491)	0.5	0.51
Ischemic heart disease	1.366 (0.991–1.884)	3.3	0.057
Cognitive impairment	1.838 (1.031–3.279)	3.6	0.039
Chronic lung disease	2.366 (1.042–5.374)	3.3	0.04
Hyperlipidemia	1.160 (0.945–1.425)	2.0	0.16
Rheumatic disease	1.822 (1.064–3.121)	4.0	0.029

^*p-values of < 0.01 are considered significant by the χ² test; CI confidence interval

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