Table 1.
Participant Characteristics (n = 153)
| Overall (n = 153) | Age <18 y (n = 57) | Age ≥18 y (n = 96) | |
|---|---|---|---|
| Age, y (mean ± SD) | 31 ± 21 | 12 ± 3 | 42 ± 19 |
| 6 to <12, n (%) | 27 (18) | 27 (47) | NA |
| 12 to <18, n (%) | 30 (20) | 30 (53) | NA |
| 18 to <25, n (%) | 29 (19) | NA | 29 (30) |
| 25 to <60, n (%) | 41 (27) | NA | 41 (43) |
| ≥60, n (%) | 26 (17) | NA | 26 (27) |
| Range | 7–80 | 7–17 | 18–80 |
| Male, n (%) | 52 (34) | 27 (47) | 25 (26) |
| Ethnicity, n (%) | |||
| Hispanic | 15 (10) | 3 (5) | 12 (13) |
| Not Hispanic or Latino | 137 (90) | 53 (93) | 84 (88) |
| Unknown | 1 (<1) | 1 (2) | 0 (0) |
| Race, n (%) | |||
| White | 142 (93) | 56 (98) | 86 (90) |
| Black/African American | 3 (2) | 0 (0) | 3 (3) |
| Asian | 3 (2) | 1 (2) | 2 (2) |
| More than one race | 5 (3) | 0 (0) | 5 (5) |
| BMI, kg/m2 (mean ± SD) | NA | NA | 24.4 ± 3.2 |
| BMI percentile | NA | 52 ± 2 | NA |
| BMI category,a n (%) | |||
| Underweight | 3 (2) | 0 (0) | 3 (3) |
| Normal weight | 106 (69) | 55 (96) | 51 (53) |
| Overweight | 44 (29) | 2 (4)a | 42 (44) |
| HbA1c, % (mean ± SD) | 5.1 ± 0.3 | 5.1 ± 0.2 | 5.1 ± 0.3 |
| Range | 4.2–5.6 | 4.5–5.5 | 4.2–5.6 |
| Has first-degree biological family member with T1Db | |||
| n/total (%) | 49/150 (33) | 29/57 (51) | 20/93 (22) |
| Parent with T1D | 10 (7) | 5 (9) | 5 (5) |
| Sibling with T1D | 26 (17) | 25 (44) | 1 (1) |
| Child with T1D | 15 (10) | 0 (0) | 15 (16) |
Abbreviations: BMI, body mass index.
a
The underweight, normal weight, and overweight BMI categories for participants aged ≥18 years are <18.5, 18.5 to <24.9, and ≥24.9, respectively. The underweight, normal weight, and overweight BMI percentile categories for participants aged <18 years are <5th percentile, 5th to <85th percentile, and ≥85th percentile, respectively (calculated using the 2000 CDC growth charts). The two pediatric participants in the overweight category had BMI percentile of <86%.
b
Three participants indicated unknown for having a first-degree family member with T1D and were excluded from the denominator.