Dice similarity coefficients (%) of 16S rRNA amplicon DGGE profiles for fecal samples collected pre- and post-colonoscopy bowel preparation.

†1 week post-colonoscopy sample not obtained.
*LS, last sample, obtained 1 week post-colonoscopy.
**LS, last sample, obtained 1 month or 3–6 months post-colonoscopy.
***Samplesobtained 3–6 months apart, patient did not undergo colonoscopy.
∧The post-colonoscopy comparisons are invalid for technical reasons.