IRCOLEV was part of the 1989 survey Supplement on Digestive Disorders which had 3 sections. The first section asked about specific conditions , such as DIVEV and gallstones, ulcers or colon or bowel conditions, as well as treatment of these conditions. The second section in the Digestive Disorder Supplement asked about abdominal pain (such as ABPAIN3XYR, had abdominal pain 3 or more times, past 12 months). The third was on normative bowel functions, which such as ABGASTRUBYR, had trouble with abdominal gas in the past 12 months.

These include:

• GALSEV ever had gallstones

• GALBT ever had other (nongallstone) gallbladder trouble

• DIVEV ever had diverticulitis

• ULCEREV ever had an ulcer

• SPASCEV ever had spastic colon

• SPASCEV ever had spastic colon

• OSBCONEV ever had similar bowel condition

• BOWELIRREV ever had irritable bowel syndrome