showed a trendp = 0.56
Presence of hypercalcemia showed a trend to positively influence end-of-follow-up GFR (+19 ± 33 ml/min/1.73 m 2 , p = 0.56).
Presence of hypercalcemia showed a trend to positively influence end-of-follow-up GFR (+19 ± 33 ml/min/1.73 m 2 , p = 0.56).
Because of the small sample size and partially incomplete clinical data, the p -values for other symptoms were too large to translate them into statistically significant predictions; only the negative predictors GIN and concentration impairment were close to significance.
We newly identified renal concentration impairment and granulomatous interstitial nephritis as factors with a clear trend toward GFR loss at the end of follow-up, emphasizing the importance of kidney biopsy in symptomatic patients.