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Table 2—

Description of apparent false positives using 2-claim rule: cases labeled as diabetes based on administrative data but not confirmed in chart reviews (n=85)

n (%)
Individuals using hypoglycemic drugs (of those ≥65 years, n=18) 3 (16.7) 
Individuals with more than three office visits coded with diagnosis of diabetes 55 (64.7) 
Individuals with at least one hospitalization with a diagnosis of diabetes 11 (12.9) 
Individuals having seen more than three different physicians in last 5 years* 63 (74.1) 
Individuals with one or more of the above four criteria 78 (91.8) 
n (%)
Individuals using hypoglycemic drugs (of those ≥65 years, n=18) 3 (16.7) 
Individuals with more than three office visits coded with diagnosis of diabetes 55 (64.7) 
Individuals with at least one hospitalization with a diagnosis of diabetes 11 (12.9) 
Individuals having seen more than three different physicians in last 5 years* 63 (74.1) 
Individuals with one or more of the above four criteria 78 (91.8) 
*

Where a patient routinely sees multiple physicians, it is less likely that a given physician (i.e., the one whose charts were abstracted) would have the patient]s full medical history including the diagnosis of diabetes.

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