Table 2.

Lower threshold (sum of raw scores): cut-off scores for tested gold standard models.

Gold standards	Score	Sensitivity	Specificity	Sens.+Spec.	PPV %	NPV %
Self-labeling and self-perceived health	36	0.902	0.767	1.669	28.17	98.72
Self-labeling and satisfaction with life	34	0.936	0.721	1.657	30.92	98.69
Self-labeling and intention to leave	34	1	0.700	1.694	17.28	100
Self-labeling, self-perceived health, satisfaction with life and intention to leave	40	0.870	0.819	1.689	19.29	99.28

Sens., sensitivity; Spec., specificity; PPV, positive predictive value; NPV, negative predictive value.