TABLE 3.

Comparison of patients with and those without A. baumannii clone Aa

Patient characteristicValue for patients:P value
With clone A (n = 44)Without clone A (n = 43)
Mean age (yr) (SD)43.0 (14.9)48.9 (16.6)0.087
No. of men (%)30 (68.2)31 (72.1)0.691
Race [no. (%)]
    African-American18 (40.9)18 (41.9)0.971
    White, non-Hispanic11 (25.0)9 (20.9)
    Hispanic, any race12 (27.3)13 (30.2)
    Asian3 (6.8)3 (7.0)
Hospital acquired [no. (%)]39 (90.7)44 (100)0.052
In ICU when organism was isolated [no. (%)]35 (81.4)40 (90.9)0.198
ICU specialty [no. (%)]0.137
    Surgical25 (56.8)28 (56.0)
    Medical13 (29.5)5 (11.6)
    Neurosurgical6 (13.6)3 (7.0)
Mean time from ICU admission to isolate isolation (days) (SD)17.8 (9.9)14.7 (10.4)0.114
Mechanically ventilated at time of initial organism isolation [no. (%)]33 (62.8)27 (75.0)0.210
Central bloodstream catheter present at time of initial organism isolation [no. (%)]35 (81.4)32 (72.7)0.337
Surgical procedure prior to organism isolation [no. (%)]38 (86.4)34 (79.1)0.361
Received expanded-spectrum cephalosporin 30 days prior to initial organism isolation [no. (%)]39 (88.6)31 (72.1)0.051
Mean modified APACHE II score (SD)13.3 (7.0)13.9 (9.1)0.780
Bloodstream infection [no. (%)]37 (84.1)7 (15.9)<0.001
Died during hospitalization [no. (%)]20 (45.5)8 (18.6)0.007
  • a Characteristics of infected versus colonized patients were compared with a Student's t test or Wilcoxon rank sum test for continuous variables and with χ2 tests for categorical variables.