- Nigel Hawkes
Two sigmoidoscopy tests separated by three to five years detect roughly a third more bowel cancers than does a single test, a new study shows. But whether the benefit of detecting the extra cancers justifies the additional costs and the risks of complications, or whether it reduces mortality by a similar degree, remains unknown.
The NHS in England plans to offer flexible sigmoidoscopy screening for bowel cancer to all people from the age of 55, after a trial showed that a single such test conferred a substantial and lasting benefit. The new results, from …