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Table 2 Summary of the correlations and partial correlations (by bowel preparation and biopsy forceps) between tissue transepithelial resistance (R te ) and macroscopic evaluation of biopsies

From: Rectal forceps biopsy procedure in cystic fibrosis: technical aspects and patients perspective for clinical trials feasibility

  Transepithelial resistance (Rte)
  Pearson ( r ) p-value
Tissue integrity −0.438 8.51 x 10 -5
Bowel preparation −0.403 3.74 x 10 -4
Biopsy forceps −0.244 0.036
Friability −0.305 6.65 x 10 -3
Bowel preparation −0.301 7.88 x 10 -3
Biopsy forceps −0.277 0.015
Bleeding −0.176 0.110
Bowel preparation −0.185 0.093
Biopsy forceps −0.182 0.100
Mucus +0.078 0.507
Bowel preparation +0.032 0.787
Biopsy forceps +0.115 0.330
  1. NOTE: Pearson (r) and p-values indicating significant correlations are highlighted (n = 107).