Are there any differences in colorectal cancer between young and elderly patients?
Except for a higher rate of undifferentiated adenocarcinoma in young patients, there were no particular differences in the compared factors between the two age groups. The mortality rates do not indicate a less favourable prognosis for the young.
The overall frequency of PSs, the colonic responses to physiological stimuli such a meal and morning waking and nocturnal suppression, are not influenced by prior bowel preparation. However, investigators wishing to study HAPS frequency, or the more complex spatiotemporal relationships among consecutive PSs, should control for bowel preparation when making comparisons among study groups.