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Table 1 Demographic factors for 26 episodes of prosthetic joint infection (PJI) treated with debridement and retention of prosthesis

From: DAIR (Debridement, Antibiotics and Implant Retention) less effective in hematogenous total knee arthroplasty infections

Variable Failure (n = 6) Success (n = 20) p value
Age* 69.8 (8.7) 74.5 (6.7) 0.18
Gender    0.66
 Male 3 (20) 12 (80)  
 Female 3 (27.2) 8 (72.7)  
Side    0.47
 Right 4 (28.5) 10 (71.4)  
 Left 2 (16.6) 10 (83.3)  
Smoker 1 (50) 1 (50) 0.34
Body mass index* 30.4 (3.4) 30 (2.6) 0.62
Deyo-Charlson Index* 5.1 (2.9) 4.0 (1.4) 0.47
ASA    0.12
 I 0 (0) 1 (100)  
 II 4 (33.3) 8 (66.6)  
 III 1 (8.3) 11 (91.6)  
 IV 1 (100) 0 (0)  
Comorbidities
 DM 1 (25) 3 (75) 0.92
 Obesity (BMI > 30 kg/m2) 3 (25) 9 (75) 0.82
 Malignancy 1 (50) 1 (50) 0.34
 Hypertension 6 (31.5) 13 (68.4) 0.09
 Cardiac disease 2 (66.6) 1 (33.3) 0.05
 Chronic pulmonary disease 4 (44.4) 5 (55.5) 0.05
 Chronic renal failure 1 (25) 3 (75) 0.92
 Vascular disease 1 (25) 3 (75) 0.92
 Thyroid disease 0 (0) 1 (100) 0.57
 Rheumatoid arthritis 0 (0) 2 (100) 0.42
 Immunosuppressive therapy 1 (25) 3 (75) 0.92
 Steroid therapy 3 (30) 7 (70) 0.50
 Repetitive urine infection 0 (0) 3 (100) 0.31
  1. n (%); *media (standard deviation)