Laboratory and clinical characteristics of participants at baseline and follow-up.
NOTE. Data are expressed as mean ± S.D for normally distributed continuous variables; as median (interquartile range) for non-normally distributed continuous variables; and as number (percentage) for categorical variables.
Abbreviations: VAS, visual analog scale.*
P<0.05 for the statistical testing between baseline and follow-up.**
Ca×P = Product of albumin-adjusted serum calcium (Ca) and serum phosphorus (P).