Table 1

Frequency of mPAS-positive crypts in colonic mucosa of controls (noncancerous colonic mucosa) and ulcerative colitis cases

No. of casesAge (years)Total duration of illness (years)Frequency of mPAS- positive crypts (×10−4)Clusters of mPAS- positive crypts (×10−4)aFoci of mPAS- positive crypts (×10−4)b
Controls1241.3 ± 5.307.8 ± 3.40.9 ± 0.86.7 ± 2.9
UC1441.9 ± 12.71–1737.7 ± 16.57.9 ± 3.612.5 ± 4.0
P < 0.0001P < 0.0001P = 0.0008
  • a Clusters of two or more mPAS-positive crypts.

  • b Both individual crypts and clusters of two or more positive crypts, each counted as one event; P compared with controls.