Table 3

Two-way contigency table of urinary PhIPa versus MeIQxa, b

PhIPMeIQxTotal
NDND < Ra ≤ 7.07.0 < R
NDc34d38577
ND < R ≤ 7.01111224
7.0 < R571527
Total505622128
  • a Expressed as ng/g creatinine.

  • b Chi-square (4 df) = 29.8, P = 0.001.

  • c ND, not detectable.

  • d Table entries are number of subjects.