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Table 2 Analysis of risk factors associated with MRSA and VRE strains

From: Epidemiology and risk factors of methicillin-resistant Staphylococcus aureus and vancomycin-resistant enterococci infections in Zhejiang China from 2015 to 2017

  MRSA VRE
OR (95%CI) P value OR (95%CI) P value
Year
 2015 1.022 (1.010–1.035) < 0.001 1.005 (1.003–1.006) < 0.001
 2016 1.018 (1.006–1.030) 0.002 1.001 (0.999–1.003) 0.214
 2017 1 1
Region
 Hangzhou 1.329 (1.295–1.363) < 0.001 1.010 (1.008–1.012) < 0.001
 Huzhou 1 1.025 (1.017–1.033) < 0.001
 Jiaxing 1.109 (1.080–1.139) < 0.001 1.006 (1.003–1.009) < 0.001
 Jinhua 1.229 (1.195–1.265) < 0.001 1.005 (1.002–1.008) 0.001
 Lishui 1.030 (1.002–1.059) 0.045 1 (0.997–1.003) 1
 Ningbo 1.406 (1.365–1.447) < 0.001 1.002 (1–1.004) 0.054
 Quzhou 1.453 (1.398–1.511) < 0.001 1.017 (1.011–1.024) < 0.001
 Shaoxing 1.189 (1.156–1.224) < 0.001 1.003 (1.001–1.006) 0.015
 Taizhou 1.197 (1.163–1.231) < 0.001 1.005 (1.002–1.009) 0.001
 Wenzhou 1.282 (1.245–1.319) < 0.001 1
 Zhoushan 1.775 (1.676–1.880) < 0.001 1.004 (0.999–1.010) 0.079
Hospital Level
 IIIA (n = 46) 1.267 (1.213–1.322) < 0.001 1.016 (1.009–1.024) 0.031
 IIIB (n = 24) 1.189 (1.138–1.242) < 0.001 1.010 (1.002–1.019) 0.143
 IIA (n = 15) 1.139 (1.089–1.190) < 0.001 1.016 (1.006–1.025) 0.045
 IIB (n = 1) 1 1
Age
  < =7d 1.130 (1.063–1.201) < 0.001 * *
 8d-28d 1.085 (1.043–1.129) < 0.001 * *
 1 m-1y 1.054 (1.030–1.079) < 0.001 * *
 2y-3y 1 1.008 (0.998–1.019) 0.015
 4y-19y 1.015 (0.992–1.037) 0.203 1
 20y-43y 1.057 (1.035–1.080) < 0.001 1.004 (1.002–1.005) 0.044
 44y-59y 1.104 (1.080–1.128) < 0.001 1.007 (1.005–1.009) 0.002
 60y-74y 1.190 (1.164–1.217) < 0.001 1.006 (1.004–1.008) 0.004
 75 + y 1.443 (1.409–1.478) < 0.001 1.011 (1.009–1.013) < 0.001
Specimen type
 Blood 1.142 (1.101–1.185) < 0.001 1.007 (1.003–1.010) < 0.001
 Bile 1.385 (1.151–1.665) < 0.001 1.001 (0.999–1.004) 0.403
 Respiratory 1.318 (1.278–1.360) < 0.001 1.003 (0.995–1.011) 0.515
 Urine 1.186 (1.139–1.235) < 0.001 1.006 (1.004–1.008) < 0.001
 Secretion 1.115 (1.081–1.150) < 0.001 1
 Puncture fluid 1 1.004 (1–1.009) 0.012
 stool 1.342 (1.262–1.426) < 0.001 1.001 (0.997–1.005) 0.839
 Other 1.137 (1.102–1.173) 0.002 1 (0.998–1.002) 1
Patient category
 Outpatient 1 1.004 (0.995–1.014) 0.4
 Inpatient-non ICU 1.132 (1.118–1.147) < 0.001 1
 Inpatient-ICU 1.439 (1.407–1.473) < 0.001 1.019 (1.013–1.025) < 0.001
  1. OR odds ratio, CI confidence interval
  2. IIIA number of bed more than 500, comprehensive examination score more than 900 points
  3. IIIB number of bed more than 500, comprehensive examination score between 750 and 899 points
  4. IIA number of bed between 100 and 499, comprehensive examination score more than 900 points
  5. IIB number of bed between 100 and 499, comprehensive examination score between 750 and 899 points
  6. Comprehensive examination including departments, staffing, management level, technical level, work quality and technical facilities
  7. d day old, m month old, y year old
  8. Respiratory containing sputum and bronchoalveolar lavage fluid
  9. Secretion containing pus and wound swab
  10. Puncture fluid containing hydrothorax, ascites, articular cavity fluid, pericardial fluid and Cerebrospinal fluid
  11. * No VRE isolate