Table 3.

ROC Curve cut-points with positive and negative predictive values (NPV and PPV) for predicted outcome of NO BURNOUT

GRIT Score*	PPV	NPV	Youden J
32	0.68	.	0.00
34	0.68	0.33	0.00
35	0.70	0.60	0.11
36	0.72	0.67	0.16
37	0.73	0.71	0.21
38	0.75	0.75	0.27
39	0.74	0.67	0.24
40	0.76	0.70	0.29
41	0.76	0.57	0.27
42	0.80	0.58	0.38
43	0.82	0.52	0.38
44	0.92	0.52	0.49
45	0.91	0.46	0.39
47	0.88	0.40	0.24
48	0.86	0.38	0.19
50	0.83	0.36	0.14
51	0.75	0.33	0.04
55	1.00	0.35	0.10
56	1.00	0.34	0.08
57	1.00	0.33	0.05
59	1.00	0.33	0.03

*Uncorrected grit score values (Grit Score × 12)

An uncorrected grit cut-off score of 44 was indicated as the statistically optimal threshold for discrimination of NO BURNOUT (in bold)