TABLE 4.

Bivariate analysis of relationship between clinical features at culture collection and 30-day mortality

Baseline characteristicaSubjectsb that:P
Died (n = 31)Survived (n = 69)
Mean age in yr (SD)62 (15.3)56 (18.7)0.2
Male subjects16 (51.6)39 (56.5)0.6
Subjects with healthcare exposure within 180 days prior to admission22 (71.0)41 (59.4)0.3
Median length of stay in days prior to culture collection (IQR)26 (16-42)14 (2-31)0.01
Subjects in ICU at onset25 (80.6)44 (63.8)0.09
Median consecutive ICU days prior to culture collection (IQR)11 (4-31)6 (0-29)0.2
Subjects on mechanical ventilation at onset25 (80.6)35 (50.7)0.01
Mean APACHE-II score (SD)24 (8.3)14 (5.4)<0.001
Subjects with diabetes mellitus11 (35.5)24 (34.8)0.9
Subjects with congestive heart failure8 (25.8)14 (20.3)0.5
Subjects with chronic obstructive pulmonary disease7 (22.6)11 (15.9)0.4
Subjects with hepatic dysfunction4 (12.9)7 (10.1)0.7
Subjects on dialysis9 (29.0)13 (18.8)0.3
Subjects with decubitus ulcers10 (32.2)12 (17.4)0.1
Subjects in antibiotic resistant classes ≥317 (54.8)28 (40.6)0.2
Subjects on delayed appropriate therapy for >52 hc21 (67.7)27 (39.1)0.008
  • a IQR, interquartile range.

  • b All data are presented as number of subjects (with the percentage in parentheses) unless indicated otherwise in column 1.

  • c CART-derived breakpoint.