Table 1.

Diagnostic test characteristics of SIS and AD8.

Cognitive Test	Sensitivity, % (95% CI)	Specificity, % (95% CI)	Positive Likelihood Ratio (95% CI)	Negative Likelihood Ratio (95% CI)	Receiver Operating Characteristics Area Under the Curve (95% CI)
SIS	74 (68–80)	77 (74–80)	3.3 (2.5–4.1)	0.33 (0.25–0.44)	0.83 (0.78–0.87)
cAD8	63 (53–72)	79 (73–85)	3.0 (1.9–4.6)	0.44 (0.31–0.62)	0.74 (0.65–0.81)
pAD8	37 (28–46)	82 (77–86)	2.0 (1.1–3.3)	0.77 (0.63–0.93)	0.67 (0.60–0.74)
SIS+cAD8*	89 (80–95)	70 (63–73)	3.0 (2.3–3.6)	0.16 (0.07–0.30)

^*Abnormal SIS or abnormal cAD8 result.