| Variable | n= | Mean, % | SD | ||||
|---|---|---|---|---|---|---|---|
| Age, years (mean) | 3,221 | 45.2 | 14.4 | ||||
| Gender, male (%) | 3,221 | 31.9 | |||||
| Race/Ethnicity (%) | |||||||
| Hispanic | 1,481 | 46.0 | |||||
| Caucasian | 872 | 27.1 | |||||
| African American | 677 | 21.0 | |||||
| Other/Unknown | 191 | 5.9 | |||||
| Setting in which ANA ordered (%) | |||||||
| Outpatient | 2,381 | 89.4 | |||||
| Lab draw alone | 226 | 8.5 | |||||
| Emergency | 41 | 1.5 | |||||
| Inpatient | 14 | 0.5 | |||||
| Primary Payment Source (%) | |||||||
| Medically Indigent | 1,354 | 46.5 | |||||
| Medicaid | 741 | 25.4 | |||||
| Medicare | 402 | 13.8 | |||||
| Commercial Insurance | 336 | 11.5 | |||||
| Self-pay | 48 | 1.7 | |||||
| Other/Unknown | 33 | 1.1 | |||||
| Service ordering ANA (%) | |||||||
| Primary care | 1,704 | 58.5 | |||||
| Subspecialty care | 1,010 | 34.7 | |||||
| Other* | 200 | 6.9 | |||||