The utility of HbA1c combined with haematocrit for early screening of gestational diabetes mellitus

Table 2 The values of HbA1c to detect GDM diagnosed by IADPSG criteria

Cut point (%)	Sensitivity	Specificity	Youden index	PPV	NPV
3.45	1	0.002	0.002	0.155	1
3.75	1	0.003	0.003	0.155	1
3.95	1	0.005	0.005	0.156	1
4.05	1	0.007	0.007	0.156	1
4.15	1	0.021	0.021	0.158	1
4.25	0.991	0.036	0.027	0.159	0.954
4.35	0.963	0.058	0.021	0.159	0.895
4.45	0.897	0.11	0.007	0.156	0.853
4.55	0.85	0.17	0.02	0.158	0.861
4.65	0.766	0.276	0.043	0.163	0.866
4.75	0.664	0.391	0.055	0.167	0.864
4.85	0.542	0.53	0.072	0.175	0.863
4.95	0.393	0.691	0.084	0.189	0.861
5.05	0.28	0.828	0.109	0.231	0.862
5.15	0.215	0.895	0.11	0.274	0.861
5.25	0.15	0.952	0.102	0.364	0.859
5.35	0.084	0.981	0.065	0.45	0.854
5.45	0.056	0.993	0.049	0.6	0.851
5.55	0.047	0.998	0.045	0.833	0.85
5.65	0.019	1	0.019	1	0.847
5.8	0.009	1	0.009	1	0.846

ISSN: 1758-5996