[Predicting quality of life on the basis of type d personality in patients with irritable bowel syndrome]

Quality of life is a main outcome in psychosomatic disorders. Several psychological factors are mentioned for predicting the quality of life in patients who suffer from irritable bowel syndrome [IBS]. The aim of this study is to determine the relationship between type D personality and quality of life in patients with IBS. This study enrolled 90 [52 women] IBS patients who referred to the gastroenterology clinics of Imam Khomeini and Laleh hospitals from September to December 2012. We used the Type D Personality and IBS Quality of Life questionnaires to evaluate patients. Data were analyzed by Pearson correlation and multi-variable regression models. Overall, 61% of patients were H. pylori positive. The mean anti-Thyroid peroxidase level in the H. pylori positive group We observed a relationship between type D personality and quality of life in patients with IBS [r=0.504, p<0.01]. The results showed a 26% variation in quality of life predicted by type D personality [p<0.01, R[2]=0.26]. According to the results, type D personality is one of the predictors of quality of life in patients with IBS. Therefore, it is important to consider psychological factors when choosing the appropriate treatment for IBS patients.

[Predicting quality of life on the basis of illness perception in patients with irritable bowel syndrome]

Irritable bowel syndrome [IBS] is a disorder of the gastrointestinal system that presents with special gastrointestinal signs and lack of an organic etiology. Quality of life [QOL] is one of the most important outcomes of IBS. Several psychological factors are mentioned as effective in determining QOL in IBS patients. The goal of this study is to determined the relationship between illness perception and QOL in patients with IBS. This study enrolled 96 patients, 40 males[41.7%] and 56 females[58.3%] who referred to the gastroenterology clinics of Imam Khomeini and Laleh hospitals from September to December 2012 Tehran, Iran. Participants completed a Brief Illness Perception Questionnaire [Brief- IPQ] and an IBS-specific QOL [IBS-QOL-34] questionnaire. Information collected by the questionnaire were analyzed with Pearson'scorrelation and regression analysis. Results of the analysis performed by Pearson's correlation showed a significant association between patient's illness perception and QOL among those with IBS. Among the subscales of illness perception, the Consequence [p<0.01, r=0.63], Emotion [p<0.01, r=0.55], Concern [p<0.01,r=0.31], Timeline[p<0.01,r=0.30], and Identity [p<0.01,r=0.20] subscales showed the most significant correlation with QOL. There was no relation observed between Illness Comprehensibility, Treatment Control, and Personal Control subscales with QOL. Patient's illness perception seems to play a role in determining QOL among IBS suffers. Therefore psychological intervention based on the patient's illness perception is recommended for IBS patients