Annual number and distribution (%) of patient assessments according to diagnosis category (outpatient setting).
| Year | Total1 | OA | Systemic Inflammatory Conditions | Gout | Regional MSK Conditions | Osteoporosis | Bone & Spinal Conditions | Trauma & Related Conditions | Other2 | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RA | AS | IA | CTD | SARD | |||||||||
| 2000 | 382,123 | 59,217 (15.5) | 79,697 (20.9) | 8178 (2.1) | * | 21,900 (5.7) | 7114 (1.9) | 5275 (1.4) | 120,856 (31.6) | 15,452 (4.0) | 13,015 (3.4) | 5733 (1.5) | 45,686 (12.0) |
| 2001 | 394,560 | 60,439 (15.3) | 82,114 (20.8) | 8617 (2.2) | * | 22,831 (5.8) | 7428 (1.9) | 5641 (1.4) | 122,813 (31.1) | 15,763 (4.0) | 12,910 (3.3) | 6022 (1.5) | 49,982 (12.7) |
| 2002 | 400,906 | 60,915 (15.2) | 84,480 (21.1) | 8792 (2.2) | * | 23,358 (5.8) | 8181 (2.0) | 6019 (1.5) | 125,494 (31.3) | 16,173 (4.0) | 12,564 (3.1) | 6104 (1.52) | 48,826 (12.2) |
| 2003 | 391,477 | 65,356 (16.7) | 85,153 (21.8) | 9101 (2.3) | * | 23,575 (6.0) | 8242 (2.1) | 6244 (1.6) | 124,261 (31.7) | 14,598 (3.7) | 11,945 (3.1) | 5630 (1.4) | 37,372 (9.6) |
| 2004 | 398,807 | 66,855 (16.8) | 88,077 (22.1) | 10,101 (2.5) | 278 (0.1) | 25,763 (6.5) | 8708 (2.2) | 6841 (1.7) | 125,148 (31.4) | 14,650 (3.7) | 12,322 (3.1) | 5266 (1.3) | 34,798 (8.7) |
| 2005 | 404,710 | 66,939 (16.5) | 92,118 (22.8) | 11,166 (2.8) | 10,017 (2.5) | 31,263 (7.7) | 7962 (2.0) | 7016 (1.7) | 115,199 (28.5) | 15,164 (3.8) | 12,203 (3.0) | 4442 (1.1) | 31,221 (7.7) |
| 2006 | 417,331 | 67,375 (16.1) | 99,699 (23.9) | 12,498 (3.0) | 20,963 (5.0) | 35,410 (8.5) | 7789 (1.9) | 7387 (1.8) | 106,845 (25.6) | 14,998 (3.6) | 11,593 (2.8) | 4584 (1.1) | 28,190 (6.8) |
| 2007 | 408,315 | 63,604 (15.6) | 102,462 (25.1) | 12,214 (3.0) | 22,612 (5.5) | 36,105 (8.8) | 7818 (1.9) | 7090 (1.7) | 101,148 (24.8) | 13,943 (3.4) | 11,932 (2.9) | 4077 (1.0) | 25,310 (6.2) |
| 2008 | 421,945 | 62,555 (14.8) | 105,522 (25.0) | 13,339 (3.2) | 24,121 (5.7) | 37,769 (9.0) | 7981 (1.9) | 6963 (1.7) | 103,618 (24.6) | 14,245 (3.4) | 15,631 (3.7) | 3671 (0.9) | 26,530 (6.3) |
| 2009 | 434,692 | 62,808 (14.5) | 110,412 (25.4) | 13,236 (3.0) | 26,284 (6.1) | 39,858 (9.2) | 8906 (2.1) | 7514 (1.7) | 104,654 (24.1) | 14,626 (3.4) | 15,482 (3.6) | 3952 (0.9) | 26,960 (6.2) |
| 2010 | 434,436 | 61,274 (14.1) | 113,770 (26.2) | 14,842 (3.4) | 26,716 (6.2) | 40,351 (9.3) | 10,893 (2.5) | 8152 (1.9) | 102,396 (23.6) | 13,768 (3.2) | 9396 (2.2) | 3918 (0.9) | 28,960 (6.7) |
| 2011 | 460,457 | 63,699 (13.83) | 121,034 (26.3) | 16,387 (3.6) | 28,866 (6.27) | 41,113 (8.9) | 16,744 (3.6) | 9207 (2.0) | 104,009 (22.6) | 15,468 (3.4) | 8613 (1.9) | 3889 (0.8) | 31,428 (6.8) |
| 2012 | 447,514 | 62,640 (14.0) | 120,479 (26.9) | 16,767 (3.8) | 29,047 (6.5) | 39,369 (8.8) | 19,385 (4.3) | 9854 (2.2) | 85,156 (19.0) | 16,267 (3.6) | 8356 (1.9) | 3184 (0.7) | 37,010 (8.3) |
| 2013 | 470,502 | 63,675 (13.53) | 127,418 (27.1) | 18,140 (3.86) | 32,897 (7.0) | 42,629 (9.1) | 21,706 (4.6) | 10,918 (2.3) | 86,508 (18.4) | 17,223 (3.7) | 7749 (1.7) | 3382 (0.7) | 38,257 (8.1) |
| 2014 | 473,902 | 61,835 (13.05) | 130,340 (27.5) | 19,396 (4.09) | 34,033 (7.2) | 43,893 (9.2) | 22,421 (4.7) | 11,254 (2.4) | 83,652 (17.7) | 17,801 (3.8) | 6622 (1.4) | 3503 (0.7) | 39,152 (8.3) |
| 2015 | 500,914 | 65,175 (13.0) | 137,271 (27.4) | 22,381 (4.5) | 37,859 (7.6) | 47,568 (9.5) | 24,575 (4.9) | 12,188 (2.4) | 86,923 (17.4) | 18,955 (3.8) | 6165 (1.2) | 3515 (0.7) | 38,339 (7.7) |
↵1 Only outpatient assessments; denominator for % is the total outpatient assessments for each year.
↵2 All other conditions with diagnosis codes not defined (e.g., non–MSK-related conditions such as hypertension, infection; Supplementary Table 1, available with the online version of this article).
↵* Diagnosis code not in use until 2004. OA: osteoarthritis; RA: rheumatoid arthritis; AS: ankylosing spondylitis; IA: inflammatory arthritis; CTD: connective tissue disease (systemic lupus erythematosus, scleroderma); SARD: systemic autoimmune rheumatic diseases (including polymyalgia rheumatica, vasculitis, Raynaud phenomenon, sarcoidosis); MSK: musculoskeletal.