Table 1.

Biopsy procedure and adequacy (n = 312)

Left kidney, %	81
Kidney size, cm	11±1.6
Ultrasound/CT scan, %	93/7
Needle gauge 14, 16, 18, %	14, 81, 5
Number of passes 1, 2, 3, 4, 5, 6, %	2, 39, 50, 6, 2, 1
Number of glomeruli	12 (9–22)
<8 glomeruli, %	22

Values are expressed as mean ± standard deviation or median (interquartile range), except where otherwise indicated. A minimum of 8 glomeruli was defined as an adequate specimen according to the Banff classification of renal allograft pathology.