TABLE 2.
Patient Demographics
| Variable | Continuers (n = 12,224) | Interrupters (n = 11,421) | Total (N = 23,645) | P Valueb |
|---|---|---|---|---|
| Age,a mean (SD) years | 51.8 (9.0) | 50.1 (10.2) | 51.0 (9.7) | < 0.001 |
| Sex, male, n (%, SD) | 7,018 (57.4) | 6,200 (54.3) | 13,218 (55.9) | < 0.001 |
| U.S. region, n (%, SD) | ||||
| North central | 3,480 (28.5) | 2,904 (25.4) | 6,384 (27.0) | < 0.001 |
| Northeast | 1,380 (11.3) | 1,211 (10.6) | 2,591 (11.0) | |
| South | 4,857 (39.7) | 5,220 (45.7) | 10,077 (42.6) | |
| West | 1,829 (15.0) | 1,675 (14.7) | 3,504 (14.8) | |
| Unknown/missing | 678 (5.5) | 411 (3.6) | 1,089 (4.6) | |
| Index basal insulin, n (%, SD) | ||||
| Insulin detemir | 2,946 (24.1) | 2,881 (25.2) | 5,827 (24.6) | 0.045 |
| Insulin glargine | 9,278 (75.9) | 8,540 (74.8) | 17,818 (75.4) | |
| Mode of delivery,a n (%, SD) | ||||
| Pen | 9,045 (74.0) | 8,701 (76.2) | 17,746 (75.1) | 0.001 |
| Vial | 3,165 (25.9) | 2,708 (23.7) | 5,873 (24.8) | |
| Both | 14 (0.1) | 12 (0.1) | 26 (0.1) | |
aOn index date.
bContinuers versus interrupters; chi-square test for categorical variables and Wilcoxon test for continuous variables.
SD = standard deviation.