Table 6.
Simulation results; logistic regression of disease on orange vegetable density and total energy intake; simulated means, standards deviations and root mean squared errors (RMSE) of estimated log odds ratios (OR) comparing density of 0.10 cups/1000 kcal to 0.02 cups/1000 kcal.
| Sim | Measurement error Correction method |
Mean λ |
Mean Log OR (s.e.) |
Standard Deviation |
RMSE |
|---|---|---|---|---|---|
| 1 | True parameters | 1 | −0.4 | ||
| No correction | 0.42 | −0.241 (0.001) | 0.019 | 0.160 | |
| Regression calibration | 0.89 | −0.408 (0.005) | 0.072 | 0.072 | |
| 2 | True parameters | 0 | −0.4 | ||
| No correction | −0.03 | −0.202 (0.001) | 0.018 | 0.199 | |
| Regression calibration | 0.00 | −0.415 (0.006) | 0.080 | 0.081 |