Table 3.

Sensitivity, Specificity, and Positive and Negative Predictive Values of the Clinical Prediction Criteria Set

	Percentage (95% CI)
Variable	INSTINCT	SABG
Sensitivity	100 (77.2–100)	97.5 (87.1–99.9)
Specificity	28.5 (23.6–34)	31.6 (27.2–36.4)
Positive predictive value	5.9 (3.5–9.8)	12.7 (9.4–16.9)
Negative predictive value	100 (95.6–100)	99.2 (95.6–100)

NOTE. Ninety-five percent confidence intervals (CIs) were determined on the basis of the Wilson method. INSTINCT, Invasive Staphylococcus aureus Infection Cohort; SABG, S. aureus Bacteremia Group