Correlation between lumbar multifidus fat infiltration and lumbar postoperative infection: a retrospective case–control study

Table 2 Univariate and Multiple Logistic Regression Analysis of Risk Factors for the Development of Spine Surgical Site Infections

	Univariate Logistic Regression		Multiple Logistic Regression
Risk Factors	Odds ratio (95% Wald CI)	P	Odds ratio (95% Wald CI)	P
Sex (male)	1.696 (0.0.96,3.00)	0.069	4.55 (2.05,10.06)	0.000*
Age(>60 yrs)	1.103 (0.59,2.06)	0.758	2.36 (1.06,5.29)	0.038*
Subcutaneous fat thickness	1.03 (0.99,1.07)	0.092	1.06 (1.02,1.10)	0.004*
LMM Fat infiltration ^a	1.53 (1.27,1.84)	0.000*	1.73 (1.1.34, 1.2.23)	0.000*
The duration of drainage	1.81 (1.28,2.55)	0.001*	2.24 (1.15,4.36)	0.018*

*Statistically significant; ^a we set every 10% change in fat infiltration into analysis. LMM: lumbar multifidus muscle

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