| Enzyme analysis | IIM patients (89 patients) | PM, JPM, IBM, NAM (49 patients) | DM, JDM (23 patients) | Overlap (17 patients) | Controls (93 person) |
| BsmI polymorphism | | | | | | Genotypes | | | | | | BB | 19,1% | 18,37% | 8,69% | 35,3% | 15,9% | Bb | 39,33% | 36,73% | 47,83% | 35,3% | 46,2% | bb | 41,57% | 44,9% | 43,48% | 29,4% | 37,8% | Allele frequencies | | | | | | B | 0,387 | 0,367 | 0,326 | 0,529 | 0,39 | b | 0,612 | 0,633 | 0,674 | 0,471 | 0,61 |
| ApaI polymorphism | | | | | | Genotypes | | | | | | AA | 37,07% | 34,69% | 30,43% | 52,94% | 24,73% | Aa | 39,33% | 38,78% | 52,17% | 23,53% | 50,54% | aa | 23,6% | 26,53% | 17,4% | 23,53% | 24,73% | Allele frequencies | | | | | | A | 0,567 | 0,541 | 0,565 | 0,647 | 0,5 | a | 0,433 | 0,459 | 0,435 | 0,353 | 0,5 |
| TaqI polymorphism | | | | | | Genotypes | | | | | | TT | 43,82% | 51,02% | 34,78% | 35,3% | 40,86% | Tt | 37,08% | 28,57% | 52,18% | 41,17% | 39,79% | tt | 19,1% | 20,41% | 13,04% | 23,53% | 19,35% | Allele frequencies | | | | | | T | 0,623 | 0,653 | 0,609 | 0,559 | 0,61 | t | 0,376 | 0,347 | 0,391 | 0,441 | 0,39 |
| FokI polymorphism | | | | | | Genotypes | | | | | | FF | 26,97% | 30,61% | 21,74% | 23,53% | 42,25% | Ff | 48,31% | 42,86% | 52,17% | 58,82% | 43,66% | ff | 24,72% | 26,53% | 26,09% | 17,65% | 14,08% | Allele frequencies | | | | | | F | 0,511 | 0,52 | 0,478 | 0,529 | 0,64 | f | 0,489 | 0,48 | 0,522 | 0,471 | 0,36 |
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