Appropriateness of outpatient gastrointestinal endoscopy in a non-academic hospital

Table 4 Indications for colonoscopy and diagnostic yield according to the American Society for Gastrointestinal Endoscopy guidelines n (%)

ASGE Indication	Frequency	Relevant lesions (%)	P
Appropriate indication	337 (82.6)	24.3
Follow-up of colonic polyps	79 (19.4)	21.5	0.879
Excision of colonic polyp	71 (17.4)	42.3	< 0.0001
Screening for colonic neoplasia	52 (12.7)	7.7	0.010
Hematochezia	36 (8.8)	30.6	0.197
Follow-up for colorectal cancer	31 (7.6)	9.7	0.166
Diarrhea	30 (7.4)	16.7	0.647
Iron deficiency anemia	20 (4.9)	5.0	0.090
Follow-up for inflammatory bowel disease	12 (2.9)	100	< 0.0001
Evaluation of an imaging study abnormality that is likely to be clinically significant	10 (2.5)	0.0	0.129
Presence of fecal occult blood	9 (2.2)	44.4	0.098
Evaluation for synchronous cancer or neoplastic polyps	4 (1.0)	100	0.002
Uncertain indication	10 (2.4)	20.0
Anemia not otherwise characterized	10 (2.4)	20.0	1.000
Inappropriate indication	61 (15.0)	3.3
Abdominal pain	50 (12.3)	6.0	0.005
Chronic constipation	18 (4.4)	5.5	0.006
Unexplained weight loss	6 (1.5)	0.0	< 0.0001
Others	14 (3.4)	0.0	< 0.0001

ASGE: American Society for Gastrointestinal Endoscopy.