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Table 4 Univariate predictors of 30-day mortality among patients with bloodstream infections

From: Clinical characteristics in blood stream infections caused by Klebsiella pneumoniae, Klebsiella variicola, and Klebsiella quasipneumoniae: a comparative study, Japan, 2014–2017

Characteristics of patientsTotal = 100Fatal = 11Survivors = 89p-value
n%N%n%
Age, median, years75.0 77.0 75.0   
Male sex70(70.0)6(54.5)64(71.9)0.30 
Age > 80 years27(27.0)4(36.4)23(25.8)0.48 
Comorbidities
 Diabetes mellitus29(29.0)5(45.5)24(27.0)0.29 
 Malignancy41(41.0)3(27.3)38(42.7)0.52 
 Liver cirrhosis10(10.0)3(27.3)7(7.9)0.08 
 Collagen disease8(8.0)1(9.1)7(7.9)1.00 
 Chronic kidney disease3(3.0)1(9.1)2(2.2)0.30 
 Pulmonary disease4(4.0)1(9.1)3(3.4)0.38 
 Mental disorder7(7.0)3(27.3)4(4.5)< 0.05*
 Immunosuppressive drug12(12.0)1(9.1)11(12.4)1.00 
 Neutropenia7(7.0)0(0)7(7.9)1.00 
Source of infection
 Pneumonia6(6.0)0(0)6(6.7)1.00 
 Skin and soft-tissue4(4.0)2(18.2)2(2.2)< 0.05*
 Abdominal37(37.0)3(27.3)34(38.2)0.74 
 Urinary tract27(27.0)2(18.2)25(28.1)0.72 
Other
 Hospital-acquired infection52(52.0)6(54.5)46(51.7)1.00 
 Appropriate antibiotic therapy within 24 h96(96.0)11(100.0)85(95.5)1.00 
Bacterial characteristics
K. pneumoniae73(73.0)8(72.7)65(73.0)1.00 
K. variicola19(19.0)2(18.2)17(19.1)1.00 
K. quasipneumoniae8(8.0)1(9.1)7(7.9)1.00 
 K1 serotype14(14.0)3(27.3)11(12.4)0.18 
 K2 serotype13(13.0)0(0)13(14.6)0.35 
 Hypermucoviscous phenotype23(23.0)3(27.3)20(22.5)0.71 
  1. CRBSI Catheter-related bloodstream infection
  2. *Asterisk indicates a statistical significant difference among the groups
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