Skip to main content

Table 3 Operating characteristics of the endotracheal aspirates quantitative cultures

From: Diagnostic yield of quantitative endotracheal aspirates in patients with severe nursing home-acquired pneumonia

Threshold (cfu/ml)

Sensitivity (%)

Specificity (%)

Accuracy (%)

≤ 103

98 (89–100)

35 (17–56)

76 (65–85)

≤ 104

90 (78–97)

77 (56–91)

85 (78–94)

≤ 105

78 (63–88)

84 (65–96)

80 (69–88)

≤ 106

51 (36–66)

92 (75–99)

65 (54–76)

≤ 107

18 (9–32)

100 (87–100)

47 (35–59)

  1. Values in parentheses are 95% confidence intervals.
Back to article page

Critical Care

ISSN: 1364-8535