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Table 2 Multivariate analysis of variables associated with K. pneumoniae infections

From: Clinical and microbiological characteristics of nosocomial, healthcare-associated, and community-acquired Klebsiella pneumoniae infections in Guangzhou, China

variable Univariate OR (95% CI) P-value Mutivariate OR (95% CI) P-value
Nosocomial versus HCA     
  ≤ 1 6.160 (2.668–14.224) 0.000 5.665 (2.277–14.092) 0.000
 2–10 7.040 (2.203–22.497) 0.001 5.332 (1.506–18.870) 0.009
 11–18 24.640 (2.894–209.815) 0.003 18.772 (2.09–168.583) 0.009
 19–59 1.384 (0.766–2.502) 0.282 1.308 (0.699–2.445) 0.401
 Diabetes mellitus 0.037 (0.187–0.948) 0.037 0.609 (0.249–1.487) 0.276
 Hematological malignancy 2.425 (1.287–4.570) 0.006 1.882 (0.686–5.166) 0.220
 Brain tumor 3.052 (1.124–8.284) 0.029 3.411 (1.139–10.215) 0.028
 Cerebral vascular disease 0.525 (0.273–1.009) 0.053 0.841 (0.395–1.792) 0.654
 Hypertension 0.528 (0.294–0.949) 0.033 1.189 (0.592–2.391) 0.626
 Immunosuppression 1.653 (0.941–2.904) 0.081 0.912 (0.37–2.249) 0.912
Nosocomial versus CA     
  ≤ 1 5.040 (1.660–15.299) 0.004 4.456 (1.405–14.135) 0.011
 2–10 12.000 (1.436–100.278) 0.022 4.727 (0.494–45.221) 0.178
 11–18 4.800 (0.933–24.692) 0.061 1.981 (0.327–12.001) 0.457
 19–59 0.850 (0.427–1.693) 0.644 0.671 (0.312–1.442) 0.307
 Diabetes mellitus 0.230 (0.097–0.544) 0.001 0.342 (0.129–0.906) 0.031
 Hematological malignancy 9.475 (2.747–32.681) 0.000 4.467 (0.933–21.395) 0.061
 Brain tumor 4.773 (1.016–22.427) 0.048 7.865 (1.554–39.817) 0.013
 Immunosuppression 5.604 (2.197–14.291) 0.000 2.762 (0.807–9.461) 0.106
HCA versus CA     
 Diabetes mellitus 0.546 (0.300–0.993) 0.047 0.554 (0.288–1.067) 0.077
 Hematological malignancy 3.700 (1.080–12.674) 0.037 2.62 (0.664–10.344) 0.169
 Cerebral vascular disease 2.414 (1.156–5.041) 0.019 2.486 (1.154–5.356) 0.02
 Hypertension 1.848 (1.003–3.404) 0.049 2.08 (1.065–4.061) 0.032
 Immunosuppression 3.227 (1.309–7.954) 0.011 2.661 (0.971–7.297) 0.057
  1. Bold values suggest statistical significance