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Table 1 Relationship between hypermucoviscosity phenotype of K. pneumoniae and clinical characteristics

From: Clinical and molecular characteristics of Klebsiella pneumoniae ventilator-associated pneumonia in mainland China

  Hypermucoviscosity  
Characteristic Positive Negative P value
n = 14 n = 29
No. (%) No. (%)
Age mean ± SD 64 ± 14 53 ± 15 0.613
Male sex 11 (78.6) 21 (72.4) 0.665
Underlying disease
 Diabetes mellitus 3 (21.4) 2 (6.8) 0.376
 Malignancy 1 (7.1) 1 (3.4) 1.000
 Neurologic disorders 6 (42.9) 13 (44.8) 0.903
 Trauma 1 (7.1) 5 (17.2) 0.670
 Chronic lung disease 1 (7.1) 1 (3.4) 1.000
 Cardiac-cerebrovascular disease 12 (85.7) 16 (55.1) 0.049*
ICU stay, days 14 ± 6 13 ± 5 0.452
Mechanical ventilation, days 8 ± 4 6 ± 3 0.141
Bacteremia 5(35.7) 1 (3.4) 0.017*
Mortality 8 (57.1) 4 (13.8) 0.009*
  1. Values given as means ± SD or No. (%) of patients
  2. * P < 0.05 was considered to be statistically significant