Most bothersome factor for UC patients, as assessed by patients, physicians, and nurses. Patients were asked which one of the following bothered them the most about their UC: urgency, pain, number of stools per day, blood in your stools, number of tablets to be taken, or none of the above. Physicians and nurses were asked which one of the same choices they thought bothered their UC patients the most. Data may not add up to 100% due to rounding. UC, ulcerative colitis.