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Table 4 Multivariate analyses for factors associated with intensive care unit admission (Forward logistic regression model)*

From: Skin and soft tissue infections in hospitalized and critically ill patients: a nationwide population-based study

Variables Other cellulitis or abscess Decubitus ulcer Post-operation wound infection Infection due to vascular device/implant Gangrene Necrotizing fasciitis
Age ≥65 yr 1.88(1.40-2.52)   2.43(1.75-3.39)    
Surgical conditions 5.49(4.04-7.45) 2.46(1.75-3.46) 13.38(7.73-23.17) 2.54(1.40-4.62)   
Hospital level       
   Medical center 1 1     1
   Regional hospital 0.90(0.65-1.24) 1.54(1.06-2.24)     0.38(0.21-0.69)
   District hospital 0.56(0.38-0.83) 0.95(0.65-1.40)     0.25(0.10-0.61)
Comorbid conditions       
   Congestive heart failure 5.01(3.09-8.11) 1.89(1.13-3.19) 4.07(1.03-16.18) 4.07(1.50-11.06) 4.33(1.78-10.56)  
   Cerebrovascular disease 3.25(2.01-5.27)   4.67(2.10-10.36)    
   End stage renal disease     0.27(0.14-0.53)   
   Cirrhosis 3.42(2.00-5.85)     35.81(3.77-340.61) 4.28(1.46-12.51)
   Cancer 1.95(1.17-3.25)   2.61(1.78-3.82) 0.17(0.08-0.38)   5.35(1.42-20.16)
   Infections other than SST 4.51(3.40-5.99) 3.27(2.39-4.49) 2.86(2.04-4.02) 2.61(1.52-4.50) 5.01(2.96-8.49) 4.02(2.33-6.95)
P-value for goodness-of-fit 0.081 0.970 0.375 0.846 0.374 0.542
Nagelkerke pseudo-R 2 0.202 0.107 0.314 0.200 0.179 0.242
  1. *Values represent adjusted odds ratio (95% confidence interval). Factors used for multivariate analyses included age ≥65 year, gender, medical/surgical conditions, hospital levels, comorbid conditions and infections other than skin/soft tissue (SST).