Table 2

Root mean square error (RMSE) and mean absolute prediction error (MAPE) results obtained for the 5 models run in the full sample of 525,620 patients

Model

RMSE

MAPE



Estimate

95% Conf.

Int.*

Estimate

95% Conf.

Int.*


Normal with Identity link (OLS)

10,397

10,130

10,657

2,997

2,941

3,052

Log Normal

13,974

13,585

14,352

2,801

2,759

2,840

Sqrt Normal

9,860

9,644

10,070

2,554

2,514

2,592

Gamma with log link

21,374

20,246

22,552

3,324

3,249

3,395

Gamma with square-root link

10,434

10,193

10,708

2,797

2,744

2,859


* Bias-corrected bootstrap confidence interval

Montez-Rath et al. BMC Medical Research Methodology 2006 6:53   doi:10.1186/1471-2288-6-53

Open Data