Table 1.
Characteristics of privately insured patients with T2DM included in the study, 2006–2013
| 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | |
|---|---|---|---|---|---|---|---|---|
| Total, n | 384,964 | 447,634 | 469,528 | 538,239 | 593,422 | 642,817 | 682,310 | 700,117 |
| Age (years) | ||||||||
| 18–44 | 15.0 | 14.1 | 13.4 | 11.7 | 10.1 | 9.3 | 8.5 | 8.0 |
| 45–64 | 58.7 | 56.3 | 54.9 | 50.3 | 45.8 | 44.0 | 41.6 | 41.1 |
| 65–74 | 14.8 | 16.5 | 17.7 | 21.3 | 25.0 | 26.7 | 28.7 | 29.1 |
| ≥75 | 11.5 | 13.1 | 14.0 | 16.7 | 19.0 | 20.0 | 21.2 | 21.7 |
| Sex | ||||||||
| Female | 47.3 | 48.2 | 48.3 | 48.8 | 49.2 | 49.3 | 49.2 | 49.0 |
| Male | 52.7 | 51.8 | 51.7 | 51.2 | 50.8 | 50.7 | 50.8 | 51.0 |
| Race | ||||||||
| White | 63.3 | 64.6 | 66.2 | 66.4 | 67.5 | 67.3 | 67.1 | 64.1 |
| Black | 9.6 | 10.5 | 11.2 | 13.1 | 13.6 | 14.0 | 14.1 | 15.9 |
| Hispanic | 10.4 | 10.9 | 11.0 | 10.7 | 9.8 | 9.8 | 9.7 | 10.8 |
| Asian | 4.2 | 4.5 | 4.7 | 4.5 | 4.3 | 4.3 | 4.3 | 4.5 |
| Unknown | 12.5 | 9.5 | 6.9 | 5.4 | 4.8 | 4.7 | 4.8 | 4.8 |
| Region | ||||||||
| Midwest | 25.0 | 22.6 | 22.3 | 23.0 | 23.6 | 24.2 | 24.8 | 25.5 |
| Northeast | 19.1 | 19.5 | 20.0 | 18.8 | 17.9 | 19.7 | 20.5 | 20.3 |
| South | 40.1 | 42.3 | 43.0 | 44.4 | 45.7 | 44.7 | 43.5 | 43.0 |
| West | 14.9 | 14.2 | 13.1 | 12.6 | 12.0 | 10.8 | 10.6 | 10.6 |
| Unknown | 0.9 | 1.4 | 1.7 | 1.3 | 0.7 | 0.6 | 0.6 | 0.6 |
| Household income ($) | ||||||||
| <40K | 14.5 | 18.5 | 22.5 | 26.1 | 28.5 | 28.6 | 28.7 | 28.4 |
| 40–49K | 5.2 | 6.3 | 7.6 | 8.5 | 8.8 | 9.0 | 9.1 | 9.3 |
| 50–59K | 5.0 | 5.9 | 7.2 | 7.9 | 8.1 | 8.2 | 8.3 | 8.4 |
| 60–74K | 6.7 | 7.8 | 9.5 | 10.2 | 10.2 | 10.4 | 10.5 | 10.6 |
| 75–99K | 8.9 | 10.5 | 12.6 | 13.2 | 12.9 | 13.1 | 13.0 | 13.1 |
| ≥100K | 17.2 | 19.7 | 23.3 | 23.6 | 22.3 | 22.2 | 22.0 | 21.8 |
| Unknown | 42.5 | 31.3 | 17.3 | 10.4 | 9.2 | 8.4 | 8.5 | 8.4 |
| Comorbidities | ||||||||
| CAD/MI | 18.7 | 19.1 | 19.7 | 21.1 | 21.8 | 21.9 | 22.0 | 21.9 |
| CHF | 8.3 | 8.7 | 8.8 | 9.7 | 10.2 | 10.4 | 10.6 | 10.7 |
| Lung disease | 13.8 | 14.5 | 15.3 | 16.4 | 17.0 | 17.2 | 17.7 | 18.0 |
| CKD | 6.1 | 6.9 | 7.9 | 9.8 | 11.1 | 11.9 | 12.8 | 13.9 |
| Depression | 6.1 | 6.3 | 6.5 | 7.2 | 7.5 | 7.7 | 8.1 | 8.4 |
| Dementia | 2.4 | 2.8 | 3.0 | 3.4 | 3.6 | 3.8 | 4.3 | 4.5 |
| Stroke | 2.9 | 3.1 | 3.2 | 3.5 | 3.6 | 3.6 | 3.8 | 3.9 |
| Atrial fibrillation | 4.5 | 5.0 | 5.3 | 6.1 | 6.9 | 7.3 | 7.7 | 8.0 |
| Number of chronic conditions | ||||||||
| 0 | 61.9 | 60.6 | 59.0 | 55.8 | 54.0 | 53.1 | 52.1 | 51.3 |
| 1 | 23.2 | 23.5 | 24.4 | 25.3 | 25.8 | 26.0 | 26.1 | 26.2 |
| ≥2 | 14.9 | 15.9 | 16.6 | 18.9 | 20.2 | 20.9 | 21.8 | 22.5 |
Data are presented as % unless otherwise indicated. CAD, coronary artery disease; CHF, congestive heart failure; CKD, chronic kidney disease; MI, myocardial infarction.