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Table 2 Sample characteristics

From: Hospital costs of central line-associated bloodstream infections and cost-effectiveness of closed vs. open infusion containers. The case of Intensive Care Units in Italy

  Cases (N = 43) Controls (N = 97) P value
Age    
Mean (std. dev.) 62.1 (16.8) 66.6 (16.2) 0.143
Gender    
   female 24 (56%) 55 (57%) 0.922
   male 19 (44%) 42 (43%)  
Professional status    
   employed 14 (33%) 22 (23%) 0.319
   retired 25 (58%) 69 (71%)  
   unemployed 4 (9%) 6 (6%)  
ASIS    
   1 5 (12%) 19 (20%) 0.397
   2 13 (31%) 28 (30%)  
   3 7 (17%) 21 (23%)  
   4 14 (33%) 18 (19%)  
   5 3 (7%) 7 (8%)  
Department    
   UCC 4 (9%) 10 (10%) 0.897
   TIPO 12 (28%) 26 (27%)  
   RIA 15 (35%) 39 (40%)  
   ID 12 (28%). 22 (23%)  
Type of admission    
   surgical 3 (7%) 9 (9%) 0.654
   medical 40 (93%) 88 (91%)  
Type of BSI    
   lab confirmed 18 (42%)   
   clinical sepsis 25 (58%)   
  1. Test Chi-2 for categorical variables, Student t test for normally distributed data and Mann Whitney U test for ordinal and non-normally distributed (skewed) data.