Table 4.
Relative risks (RRs) of autoimmune diseases in subjects with myocardial infarction (MI) in first-degree relatives
| Autoimmune diseases | Sex | Subjects with MI in first-degree relatives | General population | RR (95% CI)* | ||
| No. | Prevalence, % | No. | Prevalence, % | |||
| Congenital hypothyroidism | Male | 27 | 0.02 | 4347 | 0.04 | 0.95 (0.65 to 1.38) |
| Female | 54 | 0.05 | 6575 | 0.05 | 0.90 (0.69 to 1.18) | |
| All | 81 | 0.03 | 10 922 | 0.04 | 0.89 (0.71 to 1.10) | |
| Rheumatoid arthritis | Male | 114 | 0.08 | 11 163 | 0.09 | 0.83 (0.69 to 1.00) |
| Female | 284 | 0.26 | 44 686 | 0.36 | 0.85 (0.76 to 0.96) | |
| All | 398 | 0.15 | 55 849 | 0.23 | 0.84 (0.76 to 0.92) | |
| Sjögren’s syndrome | Male | 32 | 0.02 | 2359 | 0.02 | 1.01 (0.70 to 1.46) |
| Female | 242 | 0.22 | 19 315 | 0.16 | 1.08 (0.94 to 1.26) | |
| All | 274 | 0.11 | 21 674 | 0.09 | 1.06 (0.93 to 1.21) | |
| Systemic lupus erythematosus | Male | 28 | 0.02 | 2209 | 0.02 | 0.91 (0.64 to 1.29) |
| Female | 178 | 0.16 | 20 552 | 0.17 | 1.18 (1.04 to 1.34) | |
| All | 206 | 0.08 | 22 761 | 0.09 | 1.14 (1.01 to 1.28) | |
| Systemic sclerosis | Male | 7 | 0.00 | 461 | 0.00 | 1.06 (0.51 to 2.22) |
| Female | 11 | 0.01 | 1615 | 0.01 | 0.88 (0.49 to 1.57) | |
| All | 18 | 0.01 | 2076 | 0.01 | 0.94 (0.59 to 1.48) | |
| Polymyositis/dermatomyositis | Male | 9 | 0.01 | 646 | 0.01 | 0.98 (0.51 to 1.87) |
| Female | 22 | 0.02 | 1472 | 0.01 | 1.74 (1.15 to 2.62) | |
| All | 31 | 0.01 | 2118 | 0.01 | 1.41 (1.00 to 2.00) | |
| Behçet disease | Male | 7 | 0.00 | 883 | 0.01 | 0.53 (0.25 to 1.12) |
| Female | 7 | 0.01 | 1186 | 0.01 | 0.58 (0.28 to 1.21) | |
| All | 14 | 0.01 | 2069 | 0.01 | 0.55 (0.32 to 0.92) | |
| Vasculitis | Male | 23 | 0.02 | 3087 | 0.03 | 1.07 (0.71 to 1.60) |
| Female | 10 | 0.01 | 1958 | 0.02 | 0.79 (0.43 to 1.47) | |
| All | 33 | 0.01 | 5045 | 0.02 | 0.95 (0.67 to 1.35) | |
| Inflammatory bowel disease | Male | 32 | 0.02 | 1798 | 0.01 | 1.21 (0.86 to 1.70) |
| Female | 5 | 0.00 | 1009 | 0.01 | 0.56 (0.23 to 1.34) | |
| All | 37 | 0.01 | 2807 | 0.01 | 1.05 (0.76 to 1.44) | |
| Multiple sclerosis | Male | 0 | 0.00 | 354 | 0.00 | 0.18 (0.03 to 1.27) |
| Female | 12 | 0.01 | 1234 | 0.01 | 0.97 (0.56 to 1.71) | |
| All | 13 | 0.01 | 1588 | 0.01 | 0.73 (0.42 to 1.25) | |
| Myasthenia gravis | Male | 41 | 0.03 | 2820 | 0.02 | 1.11 (0.82 to 1.50) |
| Female | 34 | 0.03 | 4312 | 0.04 | 0.87 (0.62 to 1.21) | |
| All | 75 | 0.03 | 7132 | 0.03 | 0.98 (0.78 to 1.23) | |
| Type 1 diabetes mellitus | Male | 86 | 0.06 | 4884 | 0.04 | 0.96 (0.78 to 1.18) |
| Female | 91 | 0.08 | 5841 | 0.05 | 0.99 (0.82 to 1.21) | |
| All | 177 | 0.07 | 10 725 | 0.04 | 0.98 (0.85 to 1.13) | |
*Adjusted for age, gender, place of residence, quintiles of income levels, occupation, family size and Charlson Comorbidity Index.