TY - JOUR T1 - Authors' response JF - British Journal of General Practice JO - Br J Gen Pract SP - 441 LP - 441 DO - 10.3399/bjgp11X583137 VL - 61 IS - 588 AU - Margaret P Astin AU - Richard D Neal AU - Peter W Rose AU - William Hamilton Y1 - 2011/07/01 UR - http://bjgp.org/content/61/588/441.abstract N2 - Thanks to both correspondents for their comments. Essentially, we agree with their points.Bruce Arroll notices an apparent mismatch between the results for rectal bleeding combined with change in bowel habit (risk increased), and the results for rectal bleeding when combined with diarrhoea or constipation (risk unchanged — or lessened). This problem has arisen because ‘change in bowel habit’, which should mean constipation or diarrhoea, means something … ER -