Fiscal year | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | p-value | Coefficient |
---|---|---|---|---|---|---|---|---|---|---|---|
Total number of registered patients | 4100 | 3994 | 4650 | 5152 | 5463 | 6502 | 7179 | 7254 | 10368 | ||
Age (years) (IQR) | 62(55–69) | 63(55–70) | 64(56–71) | 63(56–71) | 64(56–71) | 64(56–71) | 64(56–72) | 65(57–72) | 65(56–72) | <0.0001 | |
Gender (female:male) | 3410:700 | 3313:681 | 3832:818 | 4229:923 | 4448:1015 | 5346:1156 | 5895:1284 | 5921:1333 | 8375:1993 | 0.7341 | |
Disease dutaion (years) (IQR) | 11(5–20) | 11(5–19) | 10(5–19) | 10(5–19) | 9(4–19) | 10(5–19) | 10(5–19) | 10(5–19) | 9(4–18) | 0.0020 | |
Use of MTX (%) | 36 | 48 | 53 | 53 | 47 | 51 | 64 | 58 | 60 | 0.0084 | 2.43 |
Use of corticosteroid (%) | 64 | 63 | 62 | 63 | 61 | 58 | 53 | 53 | 49 | 0.0002 | -1.88 |
Use of biologics (%) | 0.4 | 2.1 | 4.3 | 9 | 12 | 14 | 20 | 19 | 20 | <0.0001 | 2.76 |
Cervical spine surgery (cases) (%) | 8 (0.19) | 7 (0.17) | 4 (0.08) | 6 (0.12) | 8 (0.15) | 10 (0.15) | 10 (0.14) | 15 (0.21) | 30 (0.29) | 0.1593 | 0.01 |
Total knee replacement (cases) (%) | 146 (3.55) | 121 (3.02) | 117 (2.52) | 130 (2.52) | 132 (2.42) | 118 (1.81) | 156 (2.17) | 133 (1.87) | 158 (1.52) | 0.0002 | -0.21 |
Total hip replacement (cases) (%) | 33 (0.80) | 37 (0.93) | 50 (1.08) | 48 (0.93) | 45 (0.82) | 51 (0.78) | 46 (0.64) | 43 (0.59) | 56 (0.54) | 0.0098 | -0.05 |