Fig. 4.
The effect of the Jackknife simulation on the relationship between mean individual glomerular volume (mean IGV) and total glomerular number (Nglom) in African and Caucasian American males. (A, B and C) (black circles) show African Americans (n = 41) and (D, E and F) (white circles) Caucasian Americans (n = 34). Mean IGV values were generated by the Jackknife simulation with different numbers of sampled glomeruli per subject; A and D (30 glomeruli), B and E (15 glomeruli), C (9 glomeruli) and F (8 glomeruli). C and F represent the minimum number of sampled glomeruli necessary to retain a statistically significant linear correlation between mean IGV and Nglom.