Table 1.
Comparison of Study Sample and the Overall Population VHA Users with Diabetes in FY99 and FY00
| Patient Characteristics | Study Sample (%) (SE) | Mean A1c (SD) of Study Sample* | Veterans with Diabetes in FY99 or FY00 |
|---|---|---|---|
| N | 285,262 | 7.6 (1.8) | 486,558 |
| Age (years) | |||
| Mean (SD) | 64.1 (11.3) | 64.5 (11.1) | |
| <55 | 22.5 | 8.1 (2.2) | 20.5 |
| 55–65 | 20.9 | 7.7 (1.7) | 19.9 |
| 65–75 | 34.8 | 7.4 (1.5) | 35.1 |
| 75+ | 18.5 | 7.2 (1.4) | 18.7 |
| Missing | 3.3 | 8.1 (2.1) | 5.8 |
| Sex | |||
| Female | 2.5 | 7.7 (1.9) | 2.5 |
| Male | 97.5 | 7.6 (1.8) | 97.5 |
| Race/ethnicity | |||
| White | 70.2 | 7.5 (1.6) | 69.5 |
| African American | 15.3 | 7.9 (2.1) | 14.9 |
| Hispanic | 2.8 | 7.9 (1.9) | 2.8 |
| Asian | 0.5 | 7.9 (1.8) | 0.4 |
| Native American | 0.4 | 7.9 (2.1) | 0.3 |
| Other | 3.9 | 8.0 (2.1) | 6.4 |
| Unknown | 6.8 | 8.1 (2.0) | 5.6 |
| Marital status | |||
| Married | 61.3 | 7.6 (1.7) | 61.9 |
| Unmarried | 38.7 | 7.7 (1.9) | 38.1 |
| Charlson scores | |||
| 0 or 1 | 47.3 | 7.7 (1.8) | 47.1 |
| 2 | 17.3 | 7.5 (1.7) | 17.1 |
| 3 or 4 | 25.1 | 7.7 (1.7) | 25.2 |
| 5 or more | 10.4 | 7.5 (1.7) | 10.6 |
| No. of A1c tests | |||
| Mean (SD) | 3.17 (2.04) | 3.04 (1.99) | |
| 1 or 2 | 49.0 | 7.6 (1.8) | 70.1 |
| 3 | 18.1 | 7.5 (1.7) | 10.6 |
| 4 | 13.2 | 7.6 (1.7) | 7.7 |
| 5 | 8.7 | 7.7 (1.6) | 5.1 |
| 6 or more | 11.1 | 7.8 (1.6) | 6.5 |
| Initial insulin use | 31.0 | 8.2 (1.8) | 33.6 |
*
A1c values by patient characteristic did not differ substantially for the overall population compared with the study sample, thus only the study sample A1c levels are presented.
VHA, Veterans Health Administration; FY99, Fiscal Year 1999; FY00, Fiscal Year 2000