Table 2

2

SILS Threshold

Sensitivity, % (95% CI)

Specificity, % (95% CI)

Likelihood Ratio Positive

Likelihood Ratio Negative

Yield %


>1

75 (68, 81)

59 (56, 63)

1.83 (1.63, 2.07)

0.42 (0.33, 0.56)

46

>2

54 (47, 61)

83 (81, 86)

3.18 (2.67, 4.03)

0.55 (0.47, 0.65)

23

>3

30 (24, 37)

96 (95, 97)

8.02 (5.30, 12.15)

0.73 (0.66, 0.80)

8


Performance of SILS at different thresholds (N = 999)Reference test is STOFHLA, score < 23 is positive for limited reading ability. Results are point estimates and 95% confidence intervals. Yield reflects the percentage of the population at or above the threshold.

Morris et al. BMC Family Practice 2006 7:21   doi:10.1186/1471-2296-7-21

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