. Author manuscript; available in PMC: 2020 May 8.

Published in final edited form as: Am J Obstet Gynecol. 2019 Jul 24;222(1):73.e1–73.e11. doi: 10.1016/j.ajog.2019.07.035

TABLE 3.

Sensitivity analysis of results of the OGTT for DM vs impaired/normal and any abnormal results vs normal, N=167

OGTT at delivery (PP1) compared with at 6 weeks (PP2)	Diabetes (vs impaired/normal)		Any abnormal (DM, impaired) vs normal
OGTT at delivery (PP1) compared with at 6 weeks (PP2)	Sample size	% (95% CI)	Sample size	% (95% CI)
Sensitivity	6	50.0 (11.8–88.2)	58	69.0 (55.5–80.5)
Specificity	161	95.7 (91.3–98.2)	109	50.5 (40.7–60.2)
Positive predictive value	10	30.00 (6.7–65.3)	94	42.6 (32.4–53.2)
Negative predictive value	157	98.1 (94.5–99.6)	73	75.3 (63.9–84.7)

CI, confidence interval; DM, type 2 diabetes; OGTT, oral glucose tolerance test.

Waters TP, Kim SY, Werner E et al. Should women with gestational diabetes be screened at delivery hospitalization for type 2 diabetes? Am J Obstet Gynecol 2019.