TABLE 2.
Demographic and Clinical Characteristics of Study Patients with Type 2 Diabetes Mellitus by Pharmacy Benefit Structure
| Variable | Total (N = 36,475) | Pharmacy Benefit Structure | ||
|---|---|---|---|---|
| Coinsurance (n = 6,153) | Fixed Copay (n = 30,322) | 3-Tier Fixed Copay (n = 28,228) | ||
| Age (years), mean (SD) | 54.3 (10.4) | 56.7 (11.9) | 53.8 (10) | 53.6 (9.8) |
| Male, n (%) | 20,048 (55.0) | 3,324 (54) | 16,724 (55.2) | 15,518 (55.0) |
| Length of follow-up (days), mean (SD) | 820.2 (298.1) | 772.9 (293) | 829.8 (298.2) | 830.7 (298.6) |
| Funding type, n (%) | ||||
| Self-insured employers | 23,850 (65.4) | 6,087 (98.9) | 17,763 (58.6) | 16,672 (59.1) |
| Fully insured employers | 12,625 (34.6) | 66 (1.1) | 12,559 (41.4) | 11,556 (40.9) |
| Comorbidity score (categories 0, 1-2, 3+), n (%) | ||||
| 0 | 22,112 (60.6) | 3,505 (57) | 18,607 (61.4) | 17,359 (61.5) |
| 1-2 | 11,310 (31.0) | 1,994 (32.4) | 9,316 (30.7) | 8,660 (30.7) |
| 3+ | 3,053 (8.4) | 654 (10.6) | 2,399 (7.9) | 2,209 (7.8) |
| DSCI, n (%) | ||||
| 0 | 21,116 (57.9) | 3,336 (54.2) | 17,780 (58.6) | 16,619 (58.9) |
| 1-2 | 11,017 (30.2) | 1,829 (29.7) | 9,188 (30.3) | 8,565 (30.3) |
| 3+ | 4,342 (11.9) | 988 (16.1) | 3,354 (11.1) | 3,044 (10.8) |
| Count of unique medications, mean (SD) | 9.8 (6.0) | 10.5 (6.5) | 9.6 (5.8) | 9.6 (5.8) |
DSCI = Diabetes Complications Severity Index; SD = standard deviation.