a trend towards significancep = 0.08
Glomerular volume correlated positively with tubular area ( R = 0.26, p = 0.03) and with PTC/tub ( R = 0.24, p = 0.047), and negatively with a trend towards significance with PTC/50,000 μm 2 ( R = − 0.21, p = 0.08).