Table 1.
Demographic characteristics of incident type 1 diabetes cases in the SEARCH for Diabetes in Youth study (2010–2016) (n = 7,612)*
| Characteristic | N | Count (%) |
|---|---|---|
| Age at diagnosis (years) | 7,611** | |
| 0–4 | 1,189 (15.6) | |
| 5–9 | 2,400 (31.5) | |
| 10–14 | 2,824 (37.1) | |
| ≥15 | 1,198 (15.7) | |
| Sex | 7,612 | |
| Female | 3,493 (45.9) | |
| Male | 4,119 (54.1) | |
| Race/ethnicity | 7,600 | |
| Non-Hispanic White | 4,961 (65.3) | |
| Hispanic | 1,251 (16.5) | |
| African American | 1,033 (13.6) | |
| Asian Pacific Islander | 254 (3.3) | |
| American Indian | 29 (0.4) | |
| Other | 72 (0.9) | |
| Household income+ | 6,511 | |
| <$25,000 | 974 (15.0) | |
| $25–49,000 | 1,168 (17.9) | |
| $50–74,000 | 929 (14.3) | |
| ≥$75,000 | 2,464 (37.8) | |
| Do not know/refused | 976 (15.0) | |
| Highest parental education+ | 6,570 | |
| Less than high school | 257 (3.9) | |
| High school or higher | 6,313 (96.1) | |
| Insurance type+ | 6,606 | |
| Private | 4,206 (63.7) | |
| Medicaid/Medicare | 2,145 (32.5) | |
| Other/none | 255 (3.9) | |
| Primary language at home+ | 6,444 | |
| English | 6,332 (98.3) | |
| Non-English | 112 (1.7) | |
| Season of diagnosis | 7,612 | |
| Summer (June–August) | 1,749 (23.0) | |
| Fall (September–November) | 1,780 (23.4) | |
| Winter (December–February) | 2,112 (27.7) | |
| Spring (March–May) | 1,971 (25.9) |
*
Excludes n = 131 with missing documentation of DKA status.
**
n = 1 participant with missing age at diagnosis. +Data available only for participants who completed the survey of registered cases.