Table 4. Multivariate analysis for factors that predicted whether biopsy made any difference.

Characteristic	p-value	Exp(B)	95.0% CI for Exp(B) lower upper bound
Age (year)	.004	1.058	1.019	1.099
S. Creatinine	.001	0.781	0.671	0.901
S. Albumin	.001	0.312	0.160	0.609

Note: Variables entered on step 1: Age, BMI, creatinine, serum albumin, ultrasound kidney size, platelet count, dialysis done prior to kidney biopsy, diabetes, 24-h urine protein, nephritic syndrome, undifferentiated glomerulonephritis.