Concomitant Prevalence of Low Serum Diamine Oxidase Activity and Carbohydrate Malabsorption

Table 1

Main demographic and clinical characteristics of the study population.

	Study population
Patients	439 (100.0%)
Gender
Male	138 (31.4%)
Female	301 (68.6%)
Median age, years (25th, 75th percentile)	43.8 (29.9, 55.4)
Presence of gastrointestinal symptoms
Abdominal pain/discomfort	99 (22.6%)
Bloating/flatulence	299 (68.1%)
Diarrhea	249 (56.7%)
Obstipation	24 (5.5%)
Others (nausea, emesis, burping, and heartburn)	61 (13.9%)