| Variable | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | Difference* |
|---|---|---|---|---|---|---|---|
| National rate | 36.9 | 42.9 | 49.1 | 54.3 | 57.4 | 68.0 | 31.1 |
| Male sex | 37.5 | 42.4 | 49.6 | 53.8 | 55.1 | 66.5 | 29.0 |
| Age, years | |||||||
| <40 | 41.6 | 48.7 | 55.7 | 61.8 | 63.3 | 75.5 | 33.9 |
| 40–60 | 36.4 | 42.2 | 48.4 | 54.8 | 59.1 | 69.5 | 33.1 |
| ≥ 60 | 28.3 | 35.2 | 41.7 | 42.4 | 46.9 | 57.3 | 29.0 |
| MD degree | 37.1 | 43.0 | 49.1 | 54.6 | 57.5 | 68.1 | 31.0 |
| International medical graduate | 29.6 | 35.9 | 41.8 | 46.7 | 50.0 | 58.3 | 28.7 |
| Type of organization | |||||||
| Administration | 19.3 | 23.8 | 40.5 | 38.0 | 43.3 | 50.0 | 30.7 |
| Educator | 48.3 | 55.3 | 62.4 | 69.8 | 69.4 | 81.7 | 33.4 |
| Government | 56.9 | 60.9 | 62.8 | 69.5 | 76.1 | 82.0 | 25.1 |
| Group | 37.3 | 45.7 | 53.1 | 59.4 | 64.8 | 74.3 | 37.0 |
| HMO | 73.1 | 84.4 | 90.2 | 92.0 | 90.3 | 94.6 | 21.5 |
| Independent (solo) | 25.7 | 28.4 | 32.3 | 35.1 | 39.9 | 49.9 | 24.2 |
| Partnership | 35.4 | 37.6 | 46.0 | 53.4 | 56.5 | 71.1 | 35.7 |
| Others | 29.6 | 34.6 | 39.4 | 44.2 | 48.8 | 62.8 | 33.2 |
| Rural | 32.9 | 40.1 | 46.1 | 50.5 | 58.7 | 68.2 | 35.3 |
| Geographic HPSAs | 35.0 | 36.8 | 42.2 | 49.8 | 53.4 | 71.3 | 36.3 |
| MUA/Ps | 33.2 | 39.5 | 43.7 | 49.1 | 55.7 | 68.2 | 35.0 |
| Census regions | |||||||
| Northeast | 34.1 | 39.3 | 46.7 | 50.1 | 58.7 | 65.9 | 31.8 |
| Midwest | 36.4 | 42.0 | 49.3 | 53.9 | 53.2 | 67.8 | 31.4 |
| South | 34.0 | 40.1 | 45.9 | 51.7 | 57.3 | 67.7 | 33.7 |
| West | 43.3 | 49.9 | 54.8 | 60.7 | 61.2 | 70.0 | 26.7 |
Values are shown as percentages.
↵* The differences in adoption rates are between 2006 and 2011. All P < .0001 for trend.
EHR, electronic health records; HMO, health maintenance organization; HPSA, health professional shortage area; MUA/P, medically underserved area/population.