Table 5.
Bivariate structural equation model fitting for BMI and sleep duration
| Shared component† | χ2 | df | p value |
|---|---|---|---|
| ACE | |||
| CE | 1.17 | 1 | 0.28 |
| AE | 2.29 | 1 | 0.13 |
| AC | 2.17 | 1 | 0.14 |
| A | 3.96 | 2 | 0.14 |
| C | 2.67 | 2 | 0.26 |
| E | 2.86 | 2 | 0.24 |
†
ACE refers to a model that includes shared additive genetics (A), shared common environment (C), and unique environment (E); CE includes only shared common and unique environment; AE includes only shared additive genetics and unique environment, AC only includes shared additive genetics and shared common environment; A includes only shared additive genetics; C includes only shared common environment; E includes only unique environment; all reduced models are compared to ACE