Appendix Table 2C.

Test Characteristics of the Basic Plus 1-h GCT Plus HbA1c Model.

Threshold	Sensitivity, %	Specificity, %	Positive likelihood ratio	Negative likelihood ratio	Positive predictive value, %	Negative predictive value,%
15	100	0	1.00		40
20	100	4	1.04	0.00	41	100
25	100	8	1.08	0.00	42	100
30	99	10	1.09	0.15	42	91
35	99	17	1.19	0.08	45	95
40	94	26	1.27	0.22	46	87
45	93	42	1.60	0.17	52	90
50	87	54	1.91	0.23	56	86
55	75	77	3.27	0.33	69	82
60	59	86	4.14	0.48	74	76
65	46	92	6.10	0.58	80	72
70	34	97	11.83	0.68	89	68
75	20	99	20.70	0.81	93	65
80	13	100	–	0.87	100	63
85	8	100	–	0.92	100	62
90	7	100	–	0.93	100	61
95	6	100	–	0.94	100	61
100	1	100	–	0.99	100	60