Table 2

Association of biomarkers with dysplasia in the per-biopsy analysis

BiomarkerMissing values (%)Biomarker outcomeHGD/ECAny dysplasia
NoYesp ValueNoYesp Value
HPP1 methylation19.1Negative59 (22.9%)3 (7.1%)0.0256 (24.0%)6 (9.0%)<0.01
Positive199 (77.1%)39 (92.9%)177 (76.0%)61 (91.0%)
RUNX3 methylation19.1Negative102 (39.5%)6 (14.3%)<0.0197 (41.6%)11 (16.4%)<0.01
Positive156 (60.5%)36 (85.7%)136 (58.4%)56 (83.6%)
p16 methylation19.1Negative143 (55.4%)12 (28.6%)<0.01132 (56.7%)23 (34.3%)<0.01
Positive115 (44.6%)30 (71.4%)101 (43.3%)44 (65.7%)
p53 IHC13.2Negative196 (70.5%)3 (6.8%)<0.01189 (76.8%)10 (13.2%)<0.01
Positive82 (29.5%)41 (93.2%)57 (23.2%)66 (86.8%)
Cyclin A IHC14.0Negative238 (85.0%)8 (20.5%)<0.01223 (88.8%)23 (33.8%)<0.01
Positive42 (15.0%)31 (79.5%)28 (11.2%)45 (66.2%)
Tetraploidy19.7Negative182 (69.2%)20 (57.1%)0.15171 (72.2%)31 (50.8%)<0.01
Positive81 (30.8%)15 (42.9%)66 (27.8%)30 (48.2%)
Aneuploidy19.7Negative232 (88.2%)10 (28.6%)<0.01216 (91.1%)26 (42.6%)<0.01
Positive31 (11.8%)25 (71.4%)21 (8.9%)35 (57.4%)
17p LOH27.4Negative112 (49.3%)7 (16.7%)<0.01107 (51.9%)12 (19.0%)<0.01
Positive115 (50.7%)35 (83.3%)99 (48.1%)51 (81.0%)
9p LOH28.5Negative43 (19.2%)5 (12.2%)0.2940 (19.5%)8 (13.3%)0.27
Positive181 (80.8%)36 (87.8%)165 (80.5%)52 (86.7%)
  • Each p value is obtained from a χ2 test on the 2×2 table to its left. Any dysplasia refers to combination of low-grade dysplasia (LGD), HGD and EC.

  • EC, early cancer; HGD, high-grade dysplasia; IHC, immunohistochemistry; LOH, loss of heterozygosity.