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. Author manuscript; available in PMC: 2025 Aug 25.
Published in final edited form as: J Am Geriatr Soc. 2025 Aug 2;73(11):3369–3375. doi: 10.1111/jgs.70024

TABLE 3 |.

Characteristics of fingerstick blood glucose measures of hypoglycemia versus continuous glucose monitoring measures in Cohort 2, day-level measures (N = 425).

CGM hypoglycemia

Yes No

FBG hypoglycemia Yes 5 2 PPV 71%
No 35 383 NPV 92%
Sensitivity 13% Specificity 99% Percent overall agreement 91%

Abbreviations: CGM, continuous glucose monitoring; FBG, fingerstick blood glucose; N, number; NPV, negative predictive value; PPV, positive predictive value.