Testing a single item screener to support family doctors in identifying patients with limited health literacy: convergent validity of the SILS and the HLS-EU-Q16

Table 4 Diagnostic performance of the SILS in identifying patients with limited HL

Threshold	Response category^a	Sensitivity (95% CI)	Specificity (95% CI)	LR + (95% CI)	LR- (95% CI)
≥ 1	Never	1.000 (-)	0.000 (-)	-	-
≥ 2	Rarely	0.659 (0.577–0.733)	0.581 (0.502–0.655)	1.572 (1.265–1.978)	0.587 (0.440–0.759)
≥ 3	Sometimes	0.326 (0.254–0.408)	0.910 (0.854–0.945)	3.610 (2.141–6.867)	0.741 (0.647–0.835)
≥ 4	Often	0.116 (0.073–0.180)	0.981 (0.945–0.993)	5.990 (2.109–Inf)	0.902 (0.838–0.955)
≥ 5	Always	0.058 (0.030–0.110)	1.000 (0.976–1.000)	Inf (2.096–Inf)	0.942 (0.898–0.981)

LR + positive likelihood ratio, LR- negative likelihood ratio
^aResponses refer to the following question “How often do you need to have someone help you when you read instructions, pamphlets, or other written material from your doctor or pharmacy”?

ISSN: 2731-4553