. Author manuscript; available in PMC: 2020 Nov 1.

Published in final edited form as: J Intensive Care Med. 2017 Jul 24;34(11-12):946–954. doi: 10.1177/0885066617720159

Table 2.

Test Characteristics of Sniffers and Clinician Recognition

Algorithm	Period	Sensitivity	Specificity	PPV	NPV
ASSIST	Days 1–4	88.2% (85.8–90.3)	55.4% (53.2–57.6)	45.6% (43.1–48)	91.7% (90–93.2)
Herasevich	Days 1–4	78.9% (76–81.6)	52% (49.7–54.2)	41% (38.6–43.5)	85.3% (83.2–87.3)
Combined	Days 1–4	93.8% (92–95.4)	45.1% (42.9–47.3)	42% (39.7–44.2)	94.5% (92.9–95.9)
Clinical Recognition	Days 1–4	40.7% (36.1–45.3)	94.8% (93.2–96.1)	78.2% (72.5–83.3)	77.7% (75.2–80)

Data are presented as percentage (95% confidence interval).