Median (IQR) annual rheumatology practice volumes (no. patient encounters per year) and practice sizes (no. patients seen per year) by clinical FTE classification.
| Year | < 1 Clinical FTE1 | 1 Clinical FTE2 | > 1 Clinical FTE3 | |||
|---|---|---|---|---|---|---|
| Practice Volume | Practice Size | Practice Volume | Practice Size | Practice Volume | Practice Size | |
| 2000 | 1730 (879–2494) | 796 (411–1108) | 3467 (2842–4727) | 1418 (1160–1922) | 5752 (4586–6733) | 2396 (1709–3320) |
| 2001 | 1768 (933–2478) | 789 (420–1081) | 3381 (2837–4327) | 1398 (1207–1765) | 5763 (4791–6721) | 2507 (2064–3388) |
| 2002 | 1804 (797–2658) | 773 (439–1034) | 3487 (2922–3774) | 1416 (1217–1712) | 5552 (4743–7098) | 2385 (1900–3374) |
| 2003 | 1697 (827–2323) | 746 (449–1031) | 3365 (2868–4228) | 1375 (1238–1678) | 5632 (4536–7002) | 2432 (1921–3245) |
| 2004 | 1823 (867–2513) | 814 (404–1071) | 3734 (3255–4410) | 1497 (1330–1843) | 5820 (4782–7703) | 2367 (1904–3369) |
| 2005 | 1772 (600–2459) | 759 (380–1033) | 3625 (2957–4491) | 1456 (1275–1580) | 5961 (4955–8159) | 2380 (1923–3307) |
| 2006 | 1866 (743–2371) | 779 (384–1015) | 3584 (2996–4787) | 1373 (1254–1521) | 5971 (4719–8416) | 2406 (1912–3617) |
| 2007 | 1722 (730–2282) | 737 (380–1016) | 3561 (2934–4559) | 1347 (1174–1579) | 5776 (4603–8561) | 2476 (1830–3311) |
| 2008 | 1738 (676–2283) | 815 (346–1019) | 3405 (2905–4035) | 1335 (1182–1504) | 5911 (4466–8496) | 2199 (1808–3164) |
| 2009 | 1662 (679–2259) | 816 (387–951) | 3575 (2970–4195) | 1324 (1116–1561) | 5780 (4471–8358) | 2310 (1801–3094) |
| 2010 | 1745 (737–2323) | 798 (376–975) | 3459 (2987–4370) | 1325 (1147–1554) | 5524 (4508–8289) | 2242 (1852–3082) |
| 2011 | 1536 (677–2004) | 663 (328–913) | 3485 (2883–4090) | 1229 (1080–1581) | 5533 (4416–7743) | 2092 (1735–2864) |
| 2012 | 1525 (892–2136) | 713 (427–887) | 3316 (2996–3900) | 1170 (1061–1455) | 5357 (4362–7704) | 2101 (1750–2700) |
| 2013 | 1598 (859–2187) | 687 (349–869) | 3340 (2873–3832) | 1196 (985–1334) | 5215 (4260–7525) | 1988 (1702–2701) |
| 2014 | 1739 (915–2256) | 737 (420–869) | 3365 (2863–3868) | 1230 (1030–1406) | 5277 (4342–7698) | 1940 (1655–2518) |
| 2015 | 1492 (663–2234) | 670 (409–890) | 3315 (2891–3763) | 1219 (1022–1337) | 5547 (4553–7658) | 2050 (1756–2563) |
↵1 Among rheumatologists identified as those with < 40th percentile of total billings.
↵2 Among rheumatologists identified as those in the 40–60th percentile of total billings.
↵3 Among rheumatologists identified as those > 60th percentile of total billings (thus providing more clinical service). FTE: full-time equivalent; IQR: interquartile range.