Table 2. The number of concordant and discordant twin pairs for disability pension.
| Men | Women | |||||||||||
| MZ (n = 1668 pairs) | DZ (n = 3931 pairs) | MZ (n = 1851 pairs) | DZ (n = 3736 pairs) | |||||||||
| C− | D | C+ | C− | D | C+ | C− | D | C+ | C− | D | C+ | |
| All disability pensions | 1143 | 393 | 132 | 2497 | 1134 | 300 | 1369 | 371 | 111 | 2538 | 977 | 221 |
| Mental disorders | 1530 | 122 | 16 | 3572 | 329 | 30 | 1689 | 139 | 23 | 3350 | 359 | 27 |
| Depressive disorders | 1596 | 68 | 4 | 3757 | 165 | 9 | 1746 | 98 | 7 | 3483 | 165 | 9 |
| Musculoskeletal disorders | 1475 | 163 | 30 | 3375 | 505 | 51 | 1649 | 171 | 30 | 3207 | 478 | 51 |
| Cardiovascular diseases | 1526 | 120 | 22 | 3513 | 384 | 34 | 1763 | 82 | 6 | 3498 | 220 | 18 |
| Other reason | 1444 | 194 | 30 | 3295 | 588 | 48 | 1652 | 181 | 17 | 3274 | 440 | 22 |
Note: C−: neither twin, D–discordant (one twin) and C+: concordant (both twins have disability pension)