Table 5

Results of Spearman rank correlation of the Simple Clinical Colitis Activity Index score with the Powell-Tuck and complex activity index scores segregated by disease extent

Simple score v Powell-Tuck indexSimple score v complex index
Disease sitenrpnrp
Total250.95<0.0001300.92<0.0001
Left sided170.96<0.0001370.94<0.0001
Rectosigmoid 90.8 0.06100.84 0.02
Rectum120.97<0.0001190.88<0.0001
Distal210.92<0.0001290.87<0.0001

  • Distal disease is taken as rectal and rectosigmoid cases combined.