Table 2.

Classification performance (positive and negative predictive values, sensitivity and specificity) obtained with the models using the optimal risk thresholds

Model	Risk threshold	PPV (95% CI)	NPV (95% CI)	Sensitivity (95% CI)	Specificity (95% CI)
‘Mobile’	0.25	0.51 (0.48 to 0.55)	0.85 (0.83 to 0.87)	0.72 (0.68 to 0.75)	0.71 (0.69 to 0.73)
‘Baseline’	0.25	0.51 (0.48 to 0.55)	0.82 (0.80 to 0.84)	0.63 (0.59 to 0.67)	0.74 (0.72 to 0.77)

NPV, negative predictive value; PPV, positive predictive value.