Table 5 Summary of regression coefficients and standard errors produced by the 625 models which incorporated a range of imputed operating experience data for the two patients who had missing data (see ‘Methods’ section)
Parameter | Original learning effects model parameter estimate | Median and range of parameter estimates from the 625 models of imputed data |
|---|---|---|
Treatment effect: estimate | − 0.916 | − 0.946 (− 0.964, − 0.908) |
Treatment effect: standard error | 0.441 | 0.441 (0.438, 0.443) |
Laparoscopic experience: estimate | − 0.309 | − 0.317 (− 0.338, − 0.205) |
Laparoscopic experience: standard error | 0.404 | 0.408 (0.349, 0.409) |
Robotic experience: estimate | 0.074 | 0.073 (− 0.080, 0.168) |
Robotic experience: standard error | 0.397 | 0.392 (0.382, 0.397) |
Treatment × laparoscopic experience interaction: estimate | − 0.160 | − 0.144 (− 0.226, − 0.135) |
Treatment × laparoscopic experience interaction: standard error | 1.014 | 1.012 (0.989, 1.015) |
Treatment × robotic experience interaction: estimate | − 1.076 | − 1.077 (− 1.149, − 0.970) |
Treatment × robotic experience interaction: standard error | 0.526 | 0.524 (0.518, 0.527) |