Table 3.

Characteristics of those failing BAC.

Characteristic	Number (%)
Age	Median 66.0 (44–86) years
Female	4 (44.4)
Midazolam	Mean 3.4 (±1.5) mg Excluding One Having GA
Fentanyl	Mean 39.3 (±37.8) ug Excluding One Having GA
Unable to Proceed Due to Preparation	2 (22.2)
Obstructing Tumour	1 (11.1)
Previous Surgery	6 (66.7)
Reason for Failed Colonoscopy	Long/Looping/Redundant Colon (7); Discomfort (1- Note Repeated With GA); Fixed Sigmoid (1)
Indication	PR Bleeding (2), Polyps (2), Abdominal Pain (2), IBD (1), Post Op Bleeding (1), Diarrhoea (1)

BAC, balloon-assisted colonoscopy; GA, general anaesthesia; PR, per rectum; IBD, inflammatory bowel disease.