Table 2.
Beverage preference scores and intraclass correlations (ICC) by zygosity.
| Beverage item | n 1 (%)2 | Mean preference score 3 (SD) | MZ 4 ICC 4 (95% CI) | DZ 4 ICC 4 (95% CI) | ||
|---|---|---|---|---|---|---|
| SSBs 4 | 2841 (99.2) | 3.73 (1.37) | 0.383 | (0.301, 0.458) | 0.155 | (0.085, 0.223) |
| NNSBs 4 | 2827 (98.7) | 3.64 (1.34) | 0.393 | (0.221, 0.384) | 0.222 | (0.155, 0.288) |
| Orange juice | 2849 (99.4) | 4.43 (0.97) | 0.261 | (0.174, 0.345) | 0.000 | (0.000, 0.051) |
| Fruit cordial | 2847 (99.3) | 4.23 (1.02) | 0.422 | (0.344, 0.494) | 0.212 | (0.142, 0.280) |
| Milk | 2707 (94.5) | 4.22 (0.95) | 0.377 | (0.289, 0.457) | 0.091 | (0.013, 0.168) |
| Tea | 2415 (84.3) | 4.31 (1.08) | 0.532 | (0.450, 0.604) | 0.000 | (0.000, 0.066) |
| Coffee | 1905 (66.5) | 3.85 (1.29) | 0.341 | (0.214, 0.453) | 0.069 | (0.000, 0.172) |
1Number of observations included in mean beverage liking score (excl. observations from individuals that never consume the specific beverage).
2Percentage of the full sample that reported occasional consumption of the beverage.
3Preference scores were rated on a 5-point Likert scale, with a higher score indicating a higher preference for the beverage item.
4Abbreviations: ICCs: Intraclass Correlations; MZ: Monozygotic; DZ: Dizygotic; NNSBs: Non-nutritive sweetened beverages, SSB: Sugar-sweetened beverages.