Demographics, Measured and Predicted A1C, Daily Blood Glucose, Fructosamine Levels, and Drug Causing Falsely Low A1C for Patients 1–5
| . | Age (years) . | Sex . | Type of Diabetes . | Daily Blood Glucose (mg/dL) . | Measured A1C (%) . | Fructosamine (μmol/L) . | A1C Predicted From Fructosamine (%) . | Drug Causing Falsely Low A1C . | A1C After Withdrawal of Drug (%) . |
|---|---|---|---|---|---|---|---|---|---|
| Patient 1 | 57 | M | Type 1 | 144–180 | 5.0 | 389 | 8.2 | Dapsone | 9.4 |
| Patient 2 | 67 | F | Type 1 | 180–270 | 6.1 | 491 | 10.0 | Sulfasalazine | NA |
| Patient 3 | 62 | M | Type 2 | 72–126 | 4.3 | 229 | 5.5 | Sulfasalazine | 6.7 |
| Patient 4 | 77 | M | Type 2 | 90–234 | 4.3 | 385 | 8.1 | Sulfasalazine | NA |
| Patient 5 | 67 | F | Type 2 | 198–252 | 6.6 | 440 | 9.1 | Sulfasalazine | NA |
| . | Age (years) . | Sex . | Type of Diabetes . | Daily Blood Glucose (mg/dL) . | Measured A1C (%) . | Fructosamine (μmol/L) . | A1C Predicted From Fructosamine (%) . | Drug Causing Falsely Low A1C . | A1C After Withdrawal of Drug (%) . |
|---|---|---|---|---|---|---|---|---|---|
| Patient 1 | 57 | M | Type 1 | 144–180 | 5.0 | 389 | 8.2 | Dapsone | 9.4 |
| Patient 2 | 67 | F | Type 1 | 180–270 | 6.1 | 491 | 10.0 | Sulfasalazine | NA |
| Patient 3 | 62 | M | Type 2 | 72–126 | 4.3 | 229 | 5.5 | Sulfasalazine | 6.7 |
| Patient 4 | 77 | M | Type 2 | 90–234 | 4.3 | 385 | 8.1 | Sulfasalazine | NA |
| Patient 5 | 67 | F | Type 2 | 198–252 | 6.6 | 440 | 9.1 | Sulfasalazine | NA |
NA, not applicable.