Table 1.
Females | Males | Females and Males | |||||||
---|---|---|---|---|---|---|---|---|---|
15-59 | 60+ | All | 15-59 | 60+ | All | 15-59 | 60+ | All | |
Response rate, % | 70 | 76 | 72 | 58 | 77 | 64 | 64 | 77 | 68 |
Prevalence, responders | |||||||||
Responders, n | 1235 | 642 | 1877 | 993 | 532 | 1525 | 2228 | 1174 | 3402 |
Modified 1987 ACR, n | 3 | 7 | 10 | 0 | 5 | 5 | 3 | 12 | 15 |
Point prevalence, % | 0.24(0.05-0.71) | 1.09(0.44-2.23) | 0.53(0.26-0.98) | 0(0.00-0.37) | 0.94(0.31-2.18) | 0.33(0.11-0.76) | 0.14(0.03-0.39) | 1.02(0.53-1.78) | 0.44(0.25-0.73) |
Adjusted point prevalence, % | 0.46(0.17-0.74) | 0.24(0.03-0.44) | 0.35(0.17-0.52) | ||||||
Ever RA, n | 10 | 17 | 27 | 1 | 10 | 11 | 11 | 27 | 38 |
Cumulative prevalence, % | 0.81(0.39-1.48) | 2.65(1.55-4.21) | 1.44(0.95-2.10) | 0.10(0.00-0.56) | 1.88(0.91-3.43) | 0.72(0.36-1.29) | 0.49(0.25-0.88) | 2.30(1.52-3.33) | 1.12(0.79-1.53) |
Adjusted cumulative prevalence, % | 1.27(0.79-1.76) | 0.55(0.22-0.79) | 0.92(0.62-1.21) | ||||||
Prevalence, total sample | |||||||||
Total sample, n | 1757 | 840 | 2597 | 1709 | 689 | 2398 | 3466 | 1529 | 4995 |
Modified 1987 ACR, n | 3 | 7 | 10 | 0 | 5 | 5 | 3 | 12 | 15 |
Point prevalence, % | 0.17(0.04-0.50) | 0.83(0.34-1.71) | 0.39(0.19-0.71) | 0(0.00-0.22) | 0.73(0.24-1.69) | 0.21(0.07-0.49) | 0.09(0.02-0.25) | 0.79(0.41-1.37) | 0.30(0.17-0.50) |
Adjusted point prevalence, % | 0.34(0.13-0.55) | 0.18(0.02-0.34) | 0.26(0.13-0.39) | ||||||
Ever RA, n | 10 | 21 | 31 | 1 | 10 | 11 | 11 | 31 | 42 |
Cumulative prevalence, % | 0.57(0.27-1.05) | 2.50(1.55-3.80) | 1.19(0.81-1.69) | 0.06(0.00-0.33) | 1.45(0.70-2.65) | 0.46(0.23-0.82) | 0.32(0.16-0.57) | 2.03(1.38-2.87) | 0.84(0.61-1.14) |
Adjusted cumulative prevalence, % | 1.06(0.68-1.43) | 0.41(0.17-0.65) | 0.75(0.52-0.97) |
Adjusted for age or age and sex to the 2004 Danish population using the direct method. Case definitions: Modified 1987 ACR, fulfilment of the modified 1987 American College of Rheumatology (ACR) criteria for rheumatoid arthritis at examination. Ever RA fulfilment of the 1987 ACR criteria documented in medical records or by questionnaire or fulfilment of the modified 1987 ACR criteria at examination.