Table 4.
Role of PNPLA3 rs738409 as a moderator between dietary factors and fibrosis severity. Conditional effects of the dietary factors at values of the moderator using an additive genetic model.
| Bootstrapped estimates (n=10,000) | Bootstrapped estimates (n=10,000) | |||||||
|---|---|---|---|---|---|---|---|---|
| Dietary factors | Unadjusted β coefficients (conditional effects) † |
Standard errors |
95% confidence intervals |
P value | Adjusted β coefficients (conditional effects) † |
Standard errors |
95% confidence intervals |
P value |
| Significant fibrosis (F≥2) | ||||||||
| Carbohydrate (% of energy) | ||||||||
| PNPLA3-CC | 0.004 | 0.019 | −0.032 to 0.040 | .820 | 0.021 | 0.020 | −0.019 to 0.061 | .302 |
| PNPLA3-GC | 0.020 | 0.011 | −0.002 to 0.042 | .075 | 0.032 | 0.013 | 0.008 to 0.057 | .010 |
| PNPLA3-GG | 0.036 | 0.019 | −0.002 to 0.073 | .062 | 0.044 | 0.021 | 0.003 to 0.084 | .035 |
| n-3 PUFAs (g/day) ‡ | ||||||||
| PNPLA3-CC | −0.092 | 0.453 | −0.980 to 0.797 | .840 | −1.332 | 0.645 | −2.595 to −0.068 | .039 |
| PNPLA3-GC | −0.513 | 0.271 | −1.044 to 0.019 | .059 | −1.728 | 0.510 | −2.727 to −0.729 | .001 |
| PNPLA3-GG | −0.934 | 0.465 | −1.845 to −0.023 | .045 | −2.124 | 0.644 | −3.386 to −0.862 | .001 |
| Total isoflavones (mg/day) ‡ | ||||||||
| PNPLA3-CC | −0.021 | 0.253 | −0.517 to 0.476 | .935 | 0.044 | 0.284 | −0.512 to 0.600 | .877 |
| PNPLA3-GC | −0.299 | 0.134 | −0.561 to −0.038 | .025 | −0.301 | 0.165 | −0.625 to −0.022 | .048 |
| PNPLA3-GG | −0.578 | 0.254 | −1.076 to −0.081 | .023 | −0.647 | 0.286 | −1.207 to −0.086 | .024 |
| Methionine (mg/day) ‡ | ||||||||
| PNPLA3-CC | −0.019 | 0.323 | −0.653 to 0.615 | .953 | −0.886 | 0.470 | −1.806 to 0.034 | .059 |
| PNPLA3-GC | −0.316 | 0.185 | −0.679 to 0.046 | .087 | −1.104 | 0.364 | −1.817 to −0.391 | .002 |
| PNPLA3-GG | −0.614 | 0.325 | −1.251 to 0.023 | .059 | −1.322 | 0.457 | −2.217 to −0.417 | .004 |
| Total choline (mg/d) ‡ | ||||||||
| PNPLA3-CC | 0.029 | 0.334 | −0.625 to 0.683 | .931 | −0.869 | 0.483 | −1.815 to 0.078 | .072 |
| PNPLA3-GC | −0.266 | 0.199 | −0.657 to 0.125 | .182 | −1.113 | 0.388 | −1.873 to −0.352 | .004 |
| PNPLA3-GG | −0.561 | 0.348 | −1.243 to 0.121 | .107 | −1.357 | 0.491 | −2.320 to −0.394 | .006 |
| Overall fibrosis severity (stage 0-4) | ||||||||
| Carbohydrate (% of energy) | ||||||||
| PNPLA3-CC | 0.014 | 0.012 | −0.009 to 0.037 | .240 | 0.023 | 0.011 | 0.001 to 0.044 | .040 |
| PNPLA3-GC | 0.020 | 0.007 | 0.006 to 0.034 | .004 | 0.026 | 0.007 | 0.013 to 0.039 | <.001 |
| PNPLA3-GG | 0.027 | 0.012 | 0.003 to 0.050 | .025 | 0.029 | 0.011 | 0.007 to 0.051 | .009 |
| n-3 PUFAs (g/day) ‡ | ||||||||
| PNPLA3-CC | −0.133 | 0.286 | −0.695 to 0.430 | .643 | −0.803 | 0.342 | −1.475 to −0.130 | .019 |
| PNPLA3-GC | −0.406 | 0.170 | −0.741 to −0.071 | .018 | −1.060 | 0.270 | −1.590 to −0.529 | <.001 |
| PNPLA3-GG | −0.679 | 0.288 | −1.246 to −0.112 | .019 | −1.317 | 0.348 | −2.002 to −0.633 | <.001 |
| Total isoflavones (mg/day) ‡ | ||||||||
| PNPLA3-CC | 0.011 | 0.157 | −0.299 to 0.320 | .946 | 0.057 | 0.154 | −0.246 to 0.360 | .713 |
| PNPLA3-GC | −0.213 | 0.081 | −0.372 to −0.054 | .009 | −0.187 | 0.088 | −0.360 to −0.013 | .035 |
| PNPLA3-GG | −0.437 | 0.155 | −0.741 to −0.132 | .005 | −0.430 | 0.154 | −0.733 to −0.128 | .005 |
| Methionine (mg/day) ‡ | ||||||||
| PNPLA3-CC | −0.026 | 0.204 | −0.427 to 0.375 | .899 | −0.547 | 0.253 | −1.045 to −0.049 | .031 |
| PNPLA3-GC | −0.270 | 0.116 | −0.499 to −0.042 | .021 | −0.737 | 0.195 | −1.121 to −0.353 | <.001 |
| PNPLA3-GG | −0.514 | 0.201 | −0.909 to −0.119 | .011 | −0.927 | 0.245 | −1.409 to −0.444 | <.001 |
| Total choline (mg/d) ‡ | ||||||||
| PNPLA3-CC | −0.015 | 0.212 | −0.431 to 0.401 | .943 | −0.561 | 0.260 | −1.072 to −0.049 | .032 |
| PNPLA3-GC | −0.248 | 0.126 | −0.496 to 0.000 | .050 | −0.759 | 0.207 | −1.167 to −0.352 | <.001 |
| PNPLA3-GG | −0.481 | 0.217 | −0.909 to −0.054 | .027 | −0.957 | 0.265 | −1.479 to −0.436 | <.001 |
Abbreviations: PNPLA3, patatin-like phospholipase domain-containing 3; PUFAs, polyunsaturated fatty acids.
Conditional or moderation effects were calculated while adjusting for age, gender, type 2 diabetes, BMI (kg/m2) and calorie intake (kcal).
Log-transformed variables.