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Table 3 Multivariable analysis of factors associated with wound colonization by Staphylococcus aureus

From: Prevalence and factors associated with wound colonization by Staphylococcus spp. and Staphylococcus aureusin hospitalized patients in inland northeastern Brazil: a cross-sectional study

Independent variables Wound colonization by S. aureus p PR (95% CI) p PRadjusted(95% CI)
   Absent Present     
   n (%) n (%)     
Nasal S. aureus Present 6 (28.60) 15 (71.40) <0.001 7.43 <0.001 4.39
Absent 94 (90.40) 10 (9.60)   (3.88-14.21)   (2.22-8.66)
Prior antibiotic use ≥3 days 57 (90.50) 6 (9.50) 0.01 0.31 0.04 0.49
<33 days 43 (69.40) 19 (30.60)   (0.13-0.73)   (0.25-0.99)
Type of ward Medical 63 (74.10) 22 (25.90) 0.03 3.45 0.02 3.06
Surgical or ICU 37 (92.50) 3 (7.50)   (1.10-10.86)   (1.15-8.14)
Marital status Unmarried 58 (74.40) 20 (25.60) 0.07 2.41 0.64 1.27
Married 42 (89.40) 5 (10.60)   (0.97-5.99)   (0.46-3.45)
Wound acquisition Hospital 29 (93.50) 2 (6.50) 0.05 0.26 0.16 0.38
Community 71 (75.50) 23 (24.50)   (0.07-1.05)   (0.10-1.46)
Prior hospitalization Yes 67 (84.80) 12 (15.20) 0.13 0.54 0.40 0.76
No 33 (71.70) 13 (28.30)   (0.27-1.08)   (0.40-1.44)
Age ≥65 years 46 (74.20) 16 (25.80) 0.17 1.81 0.05 1.92
<65 years 54 (85.70) 9 (14.30)   (0.86-3.78)   (0.99-3.75)
Sex Male 48 (76.20) 15 (23.80) 0.39 1.48 0.90 1.04
  Female 52 (83.90) 10 (16.10)   (0.72-3.30)   (0.52-2.10)
  1. Model fit (chi-square test): p = 0.79.