Table 3

Sensitivity and specificity of the FPG test for postpartum glucose intolerance

Threshold FPG
(mg/dL)
Sensitivity
% (95% CI)
Specificity
% (95% CI)
LR+
(95% CI)
LR−
(95% CI)
Positive
post-test
probability
% (95% CI)
Negative
post-test
probability
% (95% CI)
≥11654 (33 to 74)78 (68 to 86)2.51 (1.46 to 4.31)0.58 (0.37 to 0.92)41 (24 to 59)86 (77 to 93)
≥10579 (58 to 93)56 (45 to 66)1.79 (1.31 to 2.44)0.37 (0.17 to 0.83)33 (21 to 46)91 (80 to 97)
≥9488 (68 to 97)27 (18 to 38)1.20 (0.99 to 1.47)0.46 (0.15 to 1.39)25 (16 to 35)89 (71 to 98)
  • FPG, fasting plasma glucose; LR−, negative likelihood ratio; LR+, positive likelihood ratio.