| n | JC 2009 | IDF 2005 | NCEP 2004 | NCEP 2001 | EGIR 1999 | WHO 1998 |
---|---|---|---|---|---|---|---|
Total | Â | Â | Â | Â | Â | Â | Â |
RA | 105 | 34 (32.4)†‡ | 43 (40.9)†‡ | 34 (32.4)†‡ | 26 (24.7)†‡ | 17 (16.2)†‡ | 20 (19.0†‡ |
Controls | 105 | 19 (18.1) | 24 (22.9) | 19 (18.1) | 15 (14.2) | 11 (10.5) | 13 (12.4) |
20 to 39 years | Â | Â | Â | Â | Â | Â | Â |
RA | 19 | 5 (26.3)†| 7 (36.8)†| 5 (26.3)†| 2 (10.6)†| 1 (5.3)†| 1 (5.3)†|
Controls | 19 | 2 (10.6) | 3 (15.8) | 2 (10.6) | 1 (5.3) | 0 (0) | 0 (0) |
40 to 59 years | Â | Â | Â | Â | Â | Â | Â |
RA | 51 | 16 (31.4)†| 21 (41.2)†| 16 (31.4)†| 13 (25.5)†| 8 (15.7)†| 10 (19.6)†|
Controls | 51 | 8 (15.7) | 10 (19.6) | 8 (15.7) | 7 (13.7) | 5 (9.8) | 6 (11.8) |
≥60 years |  |  |  |  |  |  |  |
RA | 35 | 13 (37.1)†| 17 (48.6)†| 13 (37.1)†| 11 (31.4)†| 8 (22.9)†| 9 (25.7)†|
Controls | 35 | 9 (25.7) | 11 (31.4) | 9 (25.7) | 7 (20.0) | 6 (17.1) | 7 (20.0) |