Table 1

Characteristics of subjects screened for colorectal polyps (n=241)

Caecum intubated (n=193)Caecum not intubated (n=48)p Value
Mean (range) age (y)67 (63–72)64.4 (63–72)1.0
Men109 (56)21 (44)0.2
Women84 (44)27 (56)
Median (range) body mass index (kg/m2)25 (16–36)24.2 (16–36)0.03
Atherosclerotic disease1-150 31 (16)8 (17)0.9
Diabetes mellitus7 (4)1 (2)0.9
Inflammatory bowel disease4 (2)00.7
Previously diagnosed CRC4 (2)1 (2)1.0
Previously diagnosed non-colorectal cancer5 (3)00.6
Current smoker44 (23)17 (35)0.1
Past smoker62 (32)10 (21)0.2
First degree relative with CRC14 (7)3 (6)1.0
Abdominal complaints1-151 47 (24)10 (21)0.7
Previous non-study colonoscopy27 (14)8 (16)0.8
  • Data for those in whom the caecum was successfully intubated during the examination are compared with the data for those in whom the caecum was not intubated. Numbers represent subjects (%) if nothing else stated.

  • 1-150 Includes coronary heart disease, intermittent claudication, and cerebrovascular accidents.

  • 1-151 Includes constipation, irritable bowel syndrome, loose stools, diarrhoea, pain, flatulence, haemorrhoids, mucus in the stools, and anal pruritus, either isolated or in combination.

  • CRC, colorectal cancer.