Glucose levels during gestational diabetes pregnancy and the risk of developing postpartum diabetes or prediabetes

Table 3 Predictive performance for postpartum type 2 diabetes mellitus or prediabetes according to the three criteria for defining suboptimal glycemic control

Criteria	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)	AUC
	(95% CI)	(95% CI)	(95% CI)	(95% CI)	(95% CI)
The present study^a	50.4 (44.3–56.5)	85.1 (81.4–88.3)	67.7 (61.9–73.0)	73.5 (68.3–75.1)	0.677 (0.635–0.720)
Any 2-hour postprandial glucose ≥ 150 mg/dL	26.7 (21.5–32.4)	92.2 (89.3–94.5)	67.9 (59.2–75.6)	67.0 (65.3–68.7)	0.594 (0.550–0.639)
Mean daily glucose > 95 mg/dL	55.2 (49.0–61.2)	74.1 (69.7–78.1)	56.9 (52.1–61.5)	72.8 (69.8–75.5)	0.646 (0.604–0.689)

AUC Area under the receiver operating characteristic curve; CI Confidence interval; NPV Negative predictive value; PPV Positive predictive value
^aThe criteria for defining suboptimal glycemic control used in the present study were ≥ 2 occasions of fasting glucose ≥ 95 mg/dL and/or 2-hour postprandial glucose ≥ 120 mg/dL.

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