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Table 1 Prevalence of SS/SS upon admission and sensitivity, specificity, and predictive values of the sepsis rule

From: Assessing the value of a real-time electronic screening algorithm for early detection of severe sepsis in the emergency department

Month Prevalence Sensitivity Specificity PPV NPV
May 3.1 (1.8 to 4.5) 72.7 (51.8 to 93.6) 88.3 (85.8 to 90.7) 16.7 (8.7 to 24.6) 99.0 (98.1 to 99.9)
June 3.0 (1.6 to 4.3) 55.0 (30.7 to 79.3) 89.2 (86.7 to 91.6) 13.4 (5.4 to 21.4) 98.5 (97.4 to 99.6)
July 3.0 (1.7 to 4.3) 86.4 (69.8 to 100) 89.8 (87.5 to 92.1) 20.7 (11.8 to 29.5) 99.5 (89.9 to 100)
August 1.8 (0.8 to 2.8) 78.6 (53.5 to 100) 87.8 (85.4 to 90.2) 10.7 (4.2 to 17.1) 99.6 (99.0 to 100)
September 2.2 (1.0 to 3.4) 86.7 (66.1 to 100) 88.0 (85.4 to 90.5) 14.0 (6.4 to 21.6) 99.7 (99.1 to 100)
October 4.3 (2.7 to 5.9) 82.8 (67.3 to 98.2) 90.6 (88.3 to 92.9) 28.2 (18.1 to 38.4) 99.2 (98.3 to 100)
November 5.4 (3.5 to 7.2) 84.9 (71.1 to 98.6) 88.9 (86.2 to 91.5) 30.1 (20.3 to 40.0) 99.1 (98.1 to 100)
December 2.9 (1.6 to 4.2) 90.5 (75.5 to 100) 88.4 (85.9 to 90.8) 19.0 (10.8 to 27.2) 99.7 (99.1 to 100)
Total 3.2 (2.7 to 3.6) 80.1 (73.9 to 86.3) 88.8 (88.0 to 89.7) 19.0 (16.1 to 21.8) 99.3 (99.0 to 99.5)
  1. Results of each period are indicated in percentages with confidence intervals at 95%.