Results
694 participants are included, of which 201 (29%) had an adequate
calcium intake. Total daily or weekly intakes of cheese, milk, and
yogurt or curd were selected as predictors for the prediction model. The
model had excellent discrimination (AUC 0.858), a good fit (Brier score
0.136, HL statistic p=0.499) and satisfactory calibration. The test
accuracy measures were: sensitivity 80.9%, specificity 77.1%, PPV
89.7%, NPV 62.2%. A color coded digital screening tool was developed
for use in clinical practice.