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Table 1 Characteristics of the study cohort exposed to the PAF and unexposed matched controls. May 2015–April 2016

From: Clinical outcomes in patients admitted to a hospitalist service exposed to an antimicrobial stewardship program – a retrospective matched cohort study

total – n (%) PAF exposed group Matched unexposed controls p value
348 (100) 827 (100)
age group
 < 35 12 (3.4) 26 (3.1) 0.961
 35–55 29 (8.3) 68 (8.2)
 55–65 37 (10.6) 81 (9.8)
 > = 65 270 (77.6) 652 (78.8)
Gender
 Female 190 (54.6) 431 (52.1) 0.437
 Male 158 (45.4) 396 (47.9)
Infectious Diagnosis
 Primary diagnosis    
  Primary diagnosis of pneumonia and secondary diagnosis of UTI 4 (1.1) 6 (0.7) 0.012
  Primary diagnosis of pneumonia 26 (7.5) 72 (8.7)
  Primary diagnosis of UTI 37 (10.6) 45 (5.4)
  Lack of primary diagnosis of infection 281 (80.7) 704 (85.1)
 Secondary diagnosis
  Secondary diagnosis of pneumonia and UTI 9 (2.6) 22 (2.7) 0.903
  Secondary diagnosis of pneumonia 48 (13.8) 127 (15.4)
  Secondary diagnosis of UTI 79 (22.7) 178 (21.5)
  Lack of secondary diagnosis of infection 212 (60.9) 500 (60.5)
Charlson Comorbidity Score
 0 252 (72.4) 507 (61.3) 0.001
 1 or 2 75 (21.6) 230 (27.8)
 > 3 21 (6) 90 (10.9)
  1. Abbreviations: PAF Prospective audit and feedback service, UTI Urinary Tract Infection