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Table 3 The risk factors associated with polymicrobial periprosthetic joint infection

From: The risk factors of polymicrobial periprosthetic joint infection: a single-center retrospective cohort study

Factors OR Adjusted OR P-Value
Host factors
BMI    
BMI (< 18.5 kg/m2) 0.947(0.505,1.777) 0.338(0.037,3.067) 0.335
BMI (> 24 kg/m2) 0.329(0.039,2.759) 1.445(0.722,2.894) 0.298
Sinus * 3.405(1.832,6.330) 2.959(1.565,5.596) 0.001*
Age (>  65 years) * 0.483(0.268,0.873) 0.554(0.298,1.032) 0.063
Previous revisions* 2.512(1.375,4.589) 1.954(1.036,3.686) 0.039*
Knee* 0.402(0.221,0.731) 0.479(0.255,0.903) 0.023*
Pathogens
S. aureus 1.134(0.546,2.353) 0.624(0.268,1.451) 0.273
CNS 1.773(0.987,3.184) 2.183 (1.148, 4.152) 0.017*
Streptococcus spp. 5.499(2.080,14.536) 6 (2.094,17.194) 0.001*
Enterococcus spp. 2.669(1.204,5.919) 3.025(1.277,7.164) 0.012*
Gram negative 2.593(1.226,5.483) 2.255(1.011,5.031) 0.047*
E. coli 0.922(0.237,3.592) 0.840(0.198,3.570) 0.814
Fungus < 0.001(< 0.001, ∞) < 0.001(< 0.001, ∞) 0.999
Atypical pathogens 4.371(1.372,13.924) 5.032(1.470,17.229) 0.01*
  1. CNS coagulation negative staphylococcus
  2. *P < 0.05
  3. **The values were given as means with the 95%CI in the parentheses
  4. * The values were given as the number of pathogens with the percentage in the parentheses