Table 1.
Baseline Characteristics
| Overall N=113 | Age 14–20 N=73 | Age 21–29 N=40 | |
|---|---|---|---|
|
| |||
| Age – Mean ± SD years | 19 ± 4 | 17 ± 2 | 24 ± 3 |
| Median Duration of Diabetes (IQR) - years | 12 (7, 15) | 10 (6, 13) | 15 (13, 18) |
| Insulin Delivery N (%) | |||
| Insulin Pump | 90 (80%) | 59 (81%) | 31 (78%) |
| Multiple Daily Injections | 23 (20%) | 14 (19%) | 9 (23%) |
| Use of a Continuous Glucose Monitor at Enrollment – N (%) | 70 (62%) | 47 (64%) | 23 (58%) |
| Use of MiniMed 670G in Auto Mode at Enrollment – N (%) | 15 (13%) | 8 (11%) | 7 (18%) |
| Body Mass Index – median (IQR) | |||
| Participants ≥18 years old kg/m2 | 26 (23, 29) | ||
| Participants <18 years old percentile | 81% (56%,90%) | ||
| Female Sex – N (%) | 70 (62%) | 42 (58%) | 28 (70%) |
| Race – N (%) | |||
| White | 104 (92%) | 68 (93%) | 36 (90%) |
| Black/African American | 3 (3%) | 1 (1%) | 2 (5%) |
| Hispanic or Latino | 5 (4%) | 3 (4%) | 2 (5%) |
| More than One Race | 1 (<1%) | 1 (1%) | 0 (0%) |
| Highest Education Levela | |||
| ≤ H.S. diploma | 20 (18%) | 16 (22%) | 4 (10%) |
| Associates Degree/Some College but no Degree | 40 (35%) | 22 (30%) | 18 (45%) |
| Bachelor’s Degree | 34 (30%) | 20 (27%) | 14 (35%) |
| Master’s Degree | 12 (11%) | 9 (12%) | 3 (8%) |
| Doctoral or Prof Degree | 7 (6%) | 6 (8%) | 1 (3%) |
| HbA1c at Screening – N (%) | |||
| ≤8·5% (≤69 mmol/mol) | 83 (73%) | 51 (70%) | 32 (80%) |
| ≥8·6% (≥70 mmol/mol) | 30 (27%) | 22 (30%) | 8 (20%) |
| mean ± SD % (mmol/mol) | 8·1 ± 0·8 (65±9) | 8·2 ± 0·8 (66±9) | 7·9 ± 0·7 (63±8) |
| HbA1c at Randomization – N (%) | |||
| ≤8·5% (≤69 mmol/mol) | 97 (86%) | 60 (82%) | 37 (93%) |
| ≥8·6% (≥70 mmol/mol) | 16 (14%) | 13 (18%) | 3 (8%) |
| mean ± SD % (mmol/mol) | 7·9 ± 0·7 (63±8) | 8·0 ± 0·7 (64±8) | 7·7 ± 0·6 (61±6) |
a
Highest level completed by participant, or by primary caregiver if participant <18 years old.