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Twin Correlations for Marital Instability
| Zygosity | Prevalence | Concordance ratea | Tetrachoric correlations | N (pairs) |
|---|---|---|---|---|
| MZ female | 17.71 | .31 | .32 | 1,026 |
| MZ male | 14.17 | .24 | .24 | 416 |
| DZ female | 17.70 | .23 | .11 | 601 |
| DZ male | 14.39 | .20 | .15 | 235 |
| DZ male–female | 16.13 | .20 | .09 | 614 |
Note. Marital instability includes divorce and separation from a cohabiting relationship. MZ = monozygotic; DZ = dizygotic.
Proband concordance rates are presented.
