| All | Men | Women | |||
---|---|---|---|---|---|---|
 | Ca/Co | OR (95% CI) | Ca/Co | OR (95% CI) | Ca/Co | OR (95% CI) |
All RA | Â | Â | Â | Â | Â | Â |
Never-smokers | 927/1,260 | 1.0 | 61/101 | 1.0 | 866/1,159 | 1.0 |
Ever-smokers | 79/65 | 2.2 (1.2 to 3.9) | 70/60 | 2.0 (1.0 to 4.0) | 9/5 | 1.9 (0.9 to 6.1) |
ACPA-positive RA | Â | Â | Â | Â | Â | Â |
Never-smokers | 577/1,260 | 1.0 | 33/101 | 1.0 | 544/1,159 | 1.0 |
Ever-smokers | 64/65 | 4.1 (1.9 to 9.2) | 56/60 | 3.5 (1.3 to 9.4) | 8/5 | 3.6 (0.7 to 18.4) |
ACPA-negative RA | Â | Â | Â | Â | Â | Â |
Never-smokers | 350/1,260 | 1.0 | 28/101 | 1.0 | 322/1,159 | 1.0 |
Ever-smokers | 15/65 | 0.7 (0.3 to 2.0) | 14/60 | 0.8 (0.2 to 3.4) | 1/5 | 0.5 (0.05 to 4.7) |