Exposure categories | Cases (n = 5,565) | Controls (n = 55,650) | Unadjusted OR (95% CI) | Adjusteda OR (95% CI) |
---|---|---|---|---|
Ever/never prescribed digoxin: | Â | Â | Â | Â |
   Ever user | 324 | 2,546 | 1.29 (1.14 to 1.45) | 1.30 (1.14 to 1.48) |
   Never user | 5,241 | 53,104 | 1.0 (Ref) | 1.0 (Ref) |
Duration of digoxin therapy:b | Â | Â | Â | Â |
   7 to 18 years | 93 | 694 | 1.35 (1.10 to 1.69) | 1.39 (1.10 to 1.74) |
   4 to 6 years | 103 | 811 | 1.29 (1.05 to 1.58) | 1.30 (1.05 to 1.61) |
   1 to 3 years | 128 | 1,041 | 1.25 (1.03 to 1.50) | 1.25 (1.03 to 1.52) |
   Never user | 5,241 | 53,104 | 1.0 (Ref) | 1.0 (Ref) |
Ever/never prescribed digoxin (alternate reference group): | (n = 732) | (n = 7,086) | Â | Â |
   Ever user | 324 | 2,546 | 1.42 (1.21 to 1.65) | 1.42 (1.14 to 1.77) |
   Never userc | 408 | 4,540 | 1.0 (Ref) | 1.0 (Ref) |