Table 3.

Performance of the Model in Predicting Limited Health Literacy at Varying Cutoffs of Predicted Probability (N = 225)

Probability CutoffSensitivity, %Specificity, %Positive Likelihood RatioaNegative Likelihood Ratiob
a The increase in likelihood of having limited health literacy if subject is found to have a positive result (an individual probability equal to or greater than the given cutoff).
b The decrease in likelihood of having limited health literacy if a subject is found to have a negative result (an individual probability less than the given cutoff).
0.025100491.950
0.0597683.040.04
0.07588713.060.16
0.185773.790.19
0.276865.620.27
0.3689512.920.34
0.4629616.850.40
0.5509823.880.51