Exposure duration (days) | Number (Unadjusted rate per 100 patient-yrs) | Hazard ratio (95 % CI) | ||
---|---|---|---|---|
Total | Median (Quartile range) | |||
1998–2001 | ||||
DMARDs | 1,243,393 | 365.0 (12.0) | 229 (6.72) | 1.16 (0.95, 1.41) |
Non-users | 1,998,164 | 317.0 (193.0) | 362 (6.61) | 1.00 (Reference) |
2002–2006 | ||||
DMARDs | 1,949,824 | 365.0 (0.0) | 289 (5.41) | 0.86 (0.73, 1.01) |
Non-users | 3,270,739 | 365.0 (169.0) | 614 (6.85) | 1.00 (Reference) |
2007–2011 | ||||
DMARDs | 2,785,950 | 365.0 (0.0) | 344 (4.51) | 0.71 (0.60, 0.84) |
Non-users | 3,970,012 | 296.0 (224.0) | 797 (7.33) | 1.00 (Reference) |