Table 1.
Demographic and clinical characteristics of the total study population, presumptive diabetes cases, and true diabetes cases at MUSC in 2012 and at UNC in 2011
| Characteristics | Study population | Presumptive casesa | True diabetes cases | Type 1 cases | Type 2 cases | Other casesb | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MUSC | UNCc | MUSC | UNC c | MUSC | UNC c | MUSC | UNC c | MUSC | UNC c | MUSC | UNCc | |
| All, n | 43 511 | 57 767 | 1055 | 1289 | 660 | 537 | 483 | 405 | 129 | 86 | 48 | 46 |
| Female, % | 51.5 | 48.1 | 52.3 | 52.7 | 52.7 | 55.7 | 48.0 | 54.8 | 72.9 | 60.5 | 45.8 | 54.3 |
| Age (years)d, % | ||||||||||||
| 0–4.9 | 35.3 | 36.3 | 11.4 | 26.9 | 2.3 | 2.8 | 2.9 | 3.2 | 0 | 0 | 2.1 | 4.3 |
| 5.0–9.9 | 24.8 | 22.2 | 13.7 | 12.1 | 13.5 | 12.5 | 16.6 | 15.6 | 2.3 | 2.3 | 12.5 | 4.3 |
| 10.0–14.9 | 20.8 | 19.8 | 34.1 | 24.0 | 37.3 | 32.6 | 39.5 | 34.6 | 32.6 | 34.9 | 27.1 | 10.9 |
| 15.0–17.9 | 12.1 | 12.7 | 26.1 | 22.0 | 31.2 | 30.2 | 27.7 | 26.4 | 41.1 | 37.2 | 39.6 | 50.0 |
| 18.0–19.9 | 7.1 | 9.0 | 14.7 | 15.0 | 15.8 | 22.0 | 13.3 | 20.3 | 24.0 | 25.6 | 18.8 | 30.4 |
| Mean age, years (SD) | 8.0 (5.9) | 8.6 (6.2) | 12.3 (5.1) | 11.0 (6.5) | 13.6 (3.9) | 14.4 (4.1) | 13.1 (4.0) | 13.9 (4.3) | 15.2 (2.7) | 15.8 (2.6) | 14.1 (3.8) | 16.0 (3.7) |
| Age at diagnosis, years (SD) | 9.3 (4.3) | 8.8 (4.6) | 8.0 (4.0) | 7.9 (4.3) | 13.0 (2.7) | 12.9 (2.3) | 12.2 (3.9) | 12.8 (5.3) | ||||
| Racee, % | ||||||||||||
| White | 49.3 | 48.5 | 51.7 | 53.0 | 59.6 | 61.6 | 72.7 | 67.9 | 13.2 | 32.6 | 52.1 | 60.9 |
| Black | 37.0 | 21.0 | 42.7 | 29.0 | 35.8 | 25.5 | 22.2 | 19.8 | 83.7 | 50.0 | 43.8 | 30.4 |
| Other/unknown/missing | 13.7 | 30.5 | 5.7 | 18.0 | 4.7 | 12.9 | 5.2 | 12.3 | 3.1 | 17.4 | 4.2 | 8.7 |
| Health insurance type, % | ||||||||||||
| Private | 39.2 | 43.2 | 40.0 | 40.1 | 48.2 | 50.8 | 57.8 | 55.3 | 21.7 | 27.9 | 22.9 | 54.3 |
| Government | 52.5 | 42.4 | 48.0 | 47.6 | 38.8 | 34.1 | 29.4 | 29.1 | 66.7 | 57.0 | 58.3 | 34.8 |
| Tricaref | 5.0 | 8.3 | 4.1 | 9.1 | 4.9 | 11.0 | 5.4 | 12.1 | 1.6 | 5.8 | 8.3 | 10.9 |
| Not insured/missing/other | 3.4 | 6.2 | 8.0 | 3.3 | 8.2 | 4.1 | 7.5 | 3.5 | 10.1 | 9.3 | 10.4 | 0 |
Abbreviations: MUSC: Medical University of South Carolina; SD: standard deviation; UNC: University of North Carolina.
aPresumptive cases were individuals with ≥1 of these criteria: ≥1 HbA1c ≥ 6.0% (42 mmol/mol); or ≥2 random blood glucose ≥ 200 mg/dL on different days; or ≥1 fasting blood glucose ≥126 mg/dL; or ≥1 patient problem list diabetes-related ICD-9-CM codes; or ≥1 billing data diabetes-related ICD-9-CM codes; or ≥1 diabetes-related outpatient medications, including insulin, glucagon, metformin, sulfonylurea, glucagon-like peptide-1 receptor agonists, thiazolidinediones, and other hypoglycemic agents.
bAt MUSC: “Other” cases included 6 cases of maturity onset diabetes of the young (MODY) and 42 secondary diabetes cases, mostly steroid induced or CF-related. At UNC: “Other” cases included 25 secondary diabetes cases, 2 MODY cases, and 19 diabetes type-unspecified cases.
cThe UNC data were previously published,10 but the presumptive cases here did not include those captured by inpatient medications.
dAt MUSC: Age was calculated as of December 31, 2012. At UNC: Age was calculated as of December 31, 2011.|
eEthnicity data were missing for about 98% of the patients at MUSC, so we were only able to categorize race.
fMilitary health insurance plan.