Table 1.
Patient Demographics and Clinical Characteristics of Study Cohorts by Type of Diabetes
| Patients with T1DM N=41,688 n (%) | Patients with T2DM N=317,399 n (%) | |
|---|---|---|
| Age | ||
| Median (IQR), years | 55 (30) | 68 (18) |
| 18–64 years | 23,729 (57) | 108,181 (34) |
| ≥65 years | 10,782 (26) | 154,680 (49) |
| Patient age unknown and no evidence of ≥18 years | 7177 (17) | 54,538 (17) |
| Gender | ||
| Male | 20,178 (48) | 157,131 (50) |
| Female | 21,034 (51) | 154,512 (49) |
| Gender not specified | 476 (1) | 5756 (2) |
| Ethnicity | ||
| Hispanic or Latino | 731 (2) | 7113 (2) |
| Asian | 51 (<0.2) | 582 (<0.2) |
| Black or African American | 3795 (9) | 25,290 (8) |
| Pacific Islander | – | 4 (<0.1) |
| Caucasian | 16,072 (39) | 121,468 (38) |
| Ethnicity not specified | 21,039 (51) | 162,942 (51) |
| Clinical characteristics | ||
| Blood glucose test | 24,391 (59) | 161,522 (51) |
| HbA1c | 15,412 (37) | 109,903 (35) |
| Smoking (ever) | 9174 (22) | 106,760 (34) |
Abbreviations: HbA1c, glycosylated hemoglobin; IQR, interquartile range; NA, not available; T1DM, type 1 diabetes mellitus; T2DM, type 2 diabetes mellitus.