Moreover, we have measured several standard as well as advanced cardio-renal biohumoral markers. although we have reported few statistically significant differences between donors and non-donors, the “multiple-comparisons” issue is a real concern in this preliminary report, so that interpreting clinical relevance of such highly variable markers (as demonstrated by the great IQR observed) should be done with caution, and definitely confirmed in bigger populations with longer follow-up.
Source: wiktionary