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Table 4 Unit cost, number of users and mean cost per patient in different cost categories

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

Cost Category Average unit cost per category Total n. of user (% of total sample) Cost by cases (% of total costs) Cost by controls (% of total costs) Δ (Δ/controls) P value*
Drugs 3.91 139 1,158 (6%) 315 (3%) 843 (2.7) 0.000
Antibiotics 2.76 108 477 (3%) 178 (2%) 299 (1.7) 0.000
Supplies 34.5 140 407 (2%) 274 (3%) 133 (0.5) 0.116
Medical procedures 785.6 38 130 (1%) 301 (3%) -171(-0.6) 0.899
Surgeries 5968 32 1,728 (9%) 904 (10%) 824 (0.9) 0.607
Diagnostic tests 64.24 137 391 (2%) 232 (3%) 159 (0.7) 0.009
Lab exams 12.4 134 264 (1%) 93 (1%) 171 (1.8) 0.000
Special visits 16.53 55 26 (0%) 11 (0%) 15 (1.4) 0.019
Hospital stay       
   TIPO 1140.07   14,137 (78%) 6,957 (77%) 7,180 (1.0) 0.000
   ID 350.91      
   RIA 1090.68      
   UCC 550.11      
Total Direct Healthcare Costs 18,241 9,087 9,154 (1.0) 0.000
  1. * Student t test on log transformed data