| PMC full text: | Spine J. Author manuscript; available in PMC 2014 Aug 12. Published in final edited form as: Spine J. 2013 Nov; 13(11): 1449–1454. Published online 2013 Jun 15. doi: 10.1016/j.spinee.2013.05.012 |
Table
Study sample size and estimated total number of chiropractic users, services, charges, and payments from 2002 to 2008
| Utilization or cost | Year
| ||||||
|---|---|---|---|---|---|---|---|
| 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | |
| Sample* | |||||||
| Medicare Part B beneficiaries (millions) | 5.3 | 5.4 | 5.4 | 5.4 | 5.2 | 5.1 | 5.0 |
| Chiropractic users† (thousands) | 326.2 | 337.8 | 353.5 | 364.3 | 360.6 | 351.9 | 344.2 |
| Total national estimates‡ (millions) | |||||||
| Chiropractic users | 1.6 | 1.7 | 1.8 | 1.8 | 1.8 | 1.8 | 1.7 |
| Allowed chiropractic services | 15.3 | 16.4 | 17.7 | 19.1 | 19.2 | 18.9 | 18.6 |
| Allowed charges (2008$) | 618.4 | 646.8 | 690.4 | 725.3 | 697.9 | 608.1 | 571.7 |
| Payments (2008$) | 456.6 | 479.3 | 513.9 | 539.8 | 514.2 | 447.5 | 420.0 |
† Chiropractic users among the 20% sample of Medicare Part B beneficiaries.
‡ National estimates generated by multiplying study sample by a factor of 5.