Table 3.
Hazard ratio of mortality in twin pairs discordant for hyperthyroidism
| Zygosity | Number of twin pairs | Hazard Ratio |
|---|---|---|
| DZ and MZ pairs | 625 | 1.43 (1.09–1.88) |
| DZ pairs | 418 | 1.80 (1.27–2.55) |
| MZ pairs | 207 | 0.95 (0.60–1.50) |
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