Baseline clinical and laboratory data of the 139 patients who completed follow-up and stratified by patient groups with and without progression of chronic kidney disease.

GFR denotes glomerular filtration rate measured by iohexol clearance, BMI; body-mass index.
Data are presented as mean ± SD and 25th, 50th (median) and 75th percentiles for skewed variables where appropriate.
aP value for comparison between progressors and non-progressors.