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Table 3 First and peak urine and plasma viral loads with and without BK nephropathy

From: Optimal use of plasma and urine BK viral loads for screening and predicting BK nephropathy

Viral load

BK nephropathy

No BK nephropathy

p-value

First positive urine

7.79 (5.05–9.70)

3.54 (3.10–6.70)

0.001

Peak urine

9.70 (9.70–9.70)

6.72 (4.37–9.00)

<0.001

First positive plasma

4.81 (3.73–5.40)

3.05 (2.86–3.68)

<0.001

Peak plasma

5.73 (5.25–6.75)

3.63 (3.01–4.53)

<0.001

  1. Viral loads are median (interquartile range) log10 copies/mL. Data represents those transplants with a detectable viral load undergoing 3-monthly or more frequent testing of the compartment in the first 6 months post transplantation. BK nephropathy: urine testing (n = 11), plasma testing (n = 13). No BK nephropathy: urine testing (n = 115), plasma testing (n = 153)