Table 2.
Intrapair MZA and MZT Correlations
| MZA | MZT | |||
|---|---|---|---|---|
| na | Intrapair Correlation (95% CI) | na | Intrapair Correlation (95% CI) | |
| Weight (kg) | 22 | 0.66 (0.35, 0.84) | 38 | 0.87 (0.77, 0.93) |
| Height (cm) | 22 | 0.97 (0.93, 0.99) | 38 | 0.93 (0.87, 0.96) |
| BMI (kg/m2) | 22 | 0.55 (0.18, 0.78) | 38 | 0.80 (0.66, 0.89) |
| Eating Inventory Constructs (3) | ||||
| Restraint | 20 | 0.58 (0.20, 0.81) | 37 | 0.64 (0.41, 0.80) |
| Disinhibition | 20 | 0.41 (−0.02, 0.71) | 38 | 0.54 (0.27, 0.73) |
| Hunger | 20 | 0.42 (−0.01, 0.72) | 38 | 0.42 (0.12, 0.65) |
| Eating Inventory Subscales of Bond et al. (25) | ||||
| Restraint | ||||
| Strategic Dieting Behavior | 20 | 0.35 (−0.08, 0.68) | 38 | 0.30 (−0.02, 0.56) |
| Attitude to Self-Regulation | 22 | 0.39 (−0.02, 0.69) | 38 | 0.43 (0.13, 0.65) |
| Avoidance of Fattening Foods | 19 | 0.62 (0.25, 0.83) | 36 | 0.53 (0.25, 0.73) |
| Disinhibition | ||||
| Habitual Susceptibility | 20 | 0.32 (−0.12, 0.66) | 36 | 0.53 (0.25, 0.73) |
| Emotional Susceptibility | 22 | 0.60 (0.25, 0.81) | 37 | 0.60 (0.35, 0.77) |
| Situational Susceptibility | 22 | 0.47 (0.07, 0.74) | 38 | 0.38 (0.08, 0.62) |
| Hunger | ||||
| Internal Locus for Hunger | 21 | 0.58 (0.21, 0.80) | 38 | 0.41 (0.11, 0.64) |
| External Locus for Hunger | 20 | 0.37 (−0.07, 0.69) | 38 | 0.25 (−0.07, 0.52) |
| Restraint Subscales of Westenhoefer (26) | ||||
| Flexible Restraint | 20 | 0.39 (−0.04, 0.71) | 37 | 0.49 (0.21, 0.70) |
| Rigid Restraint | 20 | 0.58 (0.21, 0.81) | 37 | 0.57 (0.31, 0.75) |
MZA, monozygotic twins reared apart; MZT, monozygotic twins reared together.
a
n, number of twin pairs.