Table 3—

Sensitivity and specificity of four screening tests for six diabetes and dysglycemia criteria

ADA Questionnaire
CBG ≥140 mg/dl
CBG ≥120 mg/dl
ADA questionnaire and CBG ≥120 mg/dl
SensitivitySpecificitySensitivitySpecificitySensitivitySpecificitySensitivitySpecificity
Diabetes criterion:
 FSG ≥126 mg/dl72 (69–75)50 (49–50)65 (63–68)96 (95–96)84 (78–89)88 (87–88)63 (58–68)93 (92–93)
 2-h SG ≥200 mg/dl78 (73–84)50 (50–51)62 (55–68)95 (94–95)78 (72–84)86 (86–87)60 (54–67)92 (91–93)
 FSG ≥126 mg/dl or 2-h  SG ≥200 mg/dl75 (72–79)51 (50–51)56 (53–59)96 (96–96)75 (70–80)88 (88–89)58 (54–62)94 (93–94)
Dysglycemia criterion:
 FSG ≥110 mg/dl69 (66–72)51 (50–52)41 (39–43)97 (96–97)62 (57–66)90 (89–91)45 (42–48)95 (94–95)
 2-h SG ≥140 mg/dl72 (69–75)53 (52–54)33 (31–35)96 (96–97)48 (45–50)89 (88–90)36 (34–39)94 (94–95)
 FSG ≥110 mg/dl or 2-h  SG ≥140 mg/dl69 (67–71)54 (53–55)28 (27–29)97 (97–97)44 (41–47)90 (90–91)32 (30–34)95 (95–96)
  • Data are % (95% CI). The 95% CIs account only for the uncertainty due to missing data and are computed as (mean point estimate) ± [(t.975, 9) × (1 + 1/10)1/2 × (SD of 10 point estimates)].