Table 3.
Results from common pathway model: shared and specific influences on the three components of ES.
| Common ACE influences | Specific ACE influences | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Ac | Cc | Ec | As | Cs | Es | |||||
| Ease of excitation | 0.42 (0.23, 0.48) | 0.01 (0.00, 0.14) | 0.39 (0.30, 0.50) | 0.00 (0.00, 0.00) | 0.00 (0.00, 0.00) | 0.18 (0.09, 0.27) | ||||
| Aesthetic sensitivity | 0.04 (0.02, 0.06) | 0.00 (0.00, 0.01) | 0.04 (0.03, 0.05) | 0.29 (0.20, 0.35) | 0.00 (0.00, 0.01) | 0.63 (0.56, 0.69) | ||||
| Low sensory threshold | 0.17 (0.10, 0.22) | 0.00 (0.00, 0.06) | 0.16 (0.13, 0.21) | 0.24 (0.15, 0.29) | 0.00 (0.00, 0.01) | 0.42 (0.37, 0.48) | ||||
| Model fit summary for common pathway and Cholesky correlated factors solution | ||||||||||
| Models fit | Compared with saturated model | Compared with Cholesky | ||||||||
| Parameters | −2ll | df | AIC | Δ−2ll | Δdf | p | Δ−2ll | Δdf | p | |
| Fully saturated | 135 | 49427.65 | 8469 | 32489.65 | ||||||
| Constrained | 48 | 49504.15 | 8556 | 32392.15 | 76.50 | 87 | 0.78 | |||
| Cholesky correlated factors | 26 | 49544.76 | 8578 | 32388.76 | 117.10 | 109 | 0.28 | |||
| Common pathway | 23 | 49550.72 | 8582 | 32386.72 | 123.07 | 113 | 0.24 | 5.97 | 4 | 0.20 |
95% confidence intervals (CIs) are presented in brackets. CIs not including 0 indicate significant estimate.
Ac common A influences, Cc common C influences, Ec common E influences, As specific A influences, Cs specific C influences, Es specific E influences, fully saturated model with maximum number of parameters describing the data, constrained the saturated model constrained to have the same mean and SD across twin and zygosity, −2ll minus twice the log likelihood, df degrees of freedom, AIC Akaike’s information criterion, Δ−2ll difference in −2ll value, Δdf difference in degrees of freedom, p p value.