1) Data acquisition form
2) CKD Database raw data. See materials and methods in the main paper for definitions. Upper row abbreviations: DOB: date of birth; B/J: Bedouin or Jewish origin; H/GRD/GN/OU/O: hypodysplasia/ genetic renal disease/ glomerulonephritis/ obstructive uropathy/ other; NB or CU: neurogenic bladder or congenital obstructive uropathy; HTN: hypertension; EPO Rx: erythropoietin therapy