Fig. 3. Internal and external validation of the percentage (%) weight loss prediction model at six, 12, 24, 36 months after gastrectomy. (A) Internal validation using derivation set (tenfold cross validation). (B) External validation using validation set (n=1,229).
CI = confidence interval.
aLimit of the middle half of the distribution of the difference between observed and predicted percentage weight loss. bLimit of the middle 90% of the distribution of the difference between observed and predicted percentage weight loss.
© 2022 Ann Clin Nutr Metab
