Table 1:
Patient and plan characteristics of the study sample, by year.
| 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| % | % | % | % | % | % | % | % | % | % | % | |
| Age group | |||||||||||
| 40–49 | 48.6 | 46.4 | 45.2 | 43.2 | 42.2 | 41.8 | 41.5 | 40.5 | 40.1 | 39.6 | 39.3 |
| 50–64 | 46.2 | 47.8 | 49.0 | 50.4 | 51.2 | 51.7 | 53.1 | 53.6 | 54.0 | 55.0 | 55.1 |
| 65–74 | 5.2 | 5.7 | 7.0 | 6.5 | 6.6 | 6.5 | 5.4 | 5.8 | 5.8 | 5.4 | 5.5 |
| Race/ Ethnicity | |||||||||||
| Asian | 2.5 | 2.6 | 2.6 | 2.7 | 3.0 | 3.1 | 3.2 | 3.3 | 3.5 | 3.7 | 4.0 |
| Black | 8.1 | 8.4 | 8.9 | 10.4 | 11.1 | 11.7 | 11.3 | 11.1 | 11.0 | 10.8 | 9.3 |
| Hispanic | 7.0 | 7.2 | 7.7 | 7.8 | 7.9 | 7.9 | 7.8 | 8.1 | 8.1 | 8.4 | 9.6 |
| Unknown | 5.3 | 4.9 | 4.5 | 4.1 | 3.9 | 3.8 | 3.8 | 3.9 | 3.9 | 4.0 | 4.2 |
| White | 77 | 77 | 76.2 | 75 | 74.1 | 73.5 | 73.8 | 73.7 | 73.7 | 73.1 | 72.8 |
| Poverty status | |||||||||||
| ≤400% FPL | 25.3 | 26.4 | 27.2 | 28.5 | 28.6 | 28.6 | 28.0 | 28.0 | 27.8 | 27.7 | 27.3 |
| > 400% FPL | 74.7 | 73.6 | 72.8 | 71.5 | 71.4 | 71.4 | 72.0 | 72.0 | 72.2 | 72.3 | 72.7 |
| Health plan type | |||||||||||
| Exclusive provider organization | 12.2 | 12.4 | 13.5 | 13.3 | 13.3 | 14.7 | 14.5 | 13.8 | 12.8 | 12.5 | 10.0 |
| Health maintenance organization | 19.5 | 14.7 | 12.5 | 9.9 | 10.8 | 10.0 | 9.0 | 9.2 | 9.3 | 9.0 | 8.9 |
| Indemnity | 2.5 | 2.9 | 2.7 | 2.4 | 2.2 | 18.5 | 1.6 | 1.3 | 1.1 | 0.8 | 0.9 |
| Other | 0.3 | 0.3 | 0.2 | 0.15 | 0.2 | 0.2 | 0.2 | 0.3 | 0.3 | 0.4 | 0.7 |
| Point of service | 51.5 | 60.1 | 63.1 | 67.1 | 67.9 | 68.5 | 71.6 | 72.6 | 74 | 74.7 | 77.6 |
| Preferred provider organization | 14.0 | 9.7 | 7.8 | 7.1 | 5.6 | 4.7 | 3.0 | 2.7 | 2.4 | 2.5 | 2.0 |
| Zero cost share for mammography service | 81.9 | 83.5 | 88 | 89.4 | 88.9 | 92.1 | 93.1 | 96.9 | 97.2 | 97.7 | 98.2 |