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

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

	Transepithelial resistance (R_te)
	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

NOTE: Pearson (r) and p-values indicating significant correlations are highlighted (n = 107).

ISSN: 1471-230X