Table 3.

Concordance between methylated APC and RARβ2 patterns among all investigated groups (n = 320)

Urine markersMethylated urinary RARβ2 promoterUrine cytology
UnmethylatedMethylatedNegativePositive
(n = 178)(n = 142)(n = 229)(n = 91)
Methylated urinary APC promoter
 Unmethylated (n = 192)1197315735
 Methylated (n = 128)59697256
χ2 = 5.51, P = 0.019χ2 = 14.5, P < 0.0001
Urine cytology
 Negative (n = 229)15475
 Positive (n = 91)2367
χ2 = 19.01, P < 0.0001