J Neurogastroenterol Motil  
The Degree of Disease Knowledge in Patients with Gastroesophageal Reflux Disease: A Multi-center Prospective Study in Korea
In Du Jeong,1 Moo In Park,2* Sung Eun Kim,2 Beom Jin Kim,3 Sang Wook Kim,4 Jie- Hyun Kim,5 Hye Young Sung,6 Tae-Hoon Oh,7 and Yeon Soo Kim8 ;The Korean Society of Neurogastroenterology and Motility, GERD and Esophageal Function Research Committee
1Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea; 2Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea; 3Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea; 4Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Korea; 5Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea; 6Department of Internal Medicine, Wonkwang University College of Medicine, Iksan, Korea; 7Department of Internal Medicine, Inje University College of Medicine, Seoul, Korea; and 8Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea
Correspondence to: Moo In Park, MD
Department of Internal Medicine, Kosin University College of Medicine, Busan 49267, Korea
Tel: +82-51-990-6719, Fax: 82-51-990-5055, E-mail: mipark@ns.kosinmed.or.kr
Received: August 8, 2016; Revised: February 13, 2017; Accepted: February 16, 2017; Published online: May 4, 2017.
© The Korean Society of Neurogastroenterology and Motility. All rights reserved.

cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Patient education has been shown to be beneficial in several diseases. To properly educate patients with gastroesophageal reflux disease (GERD), it is necessary to understand how much they already know about their disease. However, no study has examined the degree of disease knowledge in Korean patients with GERD. Therefore, we conducted this study to assess the degree of knowledge in such patients.
This multicenter prospective study was conducted from January 2014 to January 2015. A total of 746 patients (mean age, 52 years; 57.6% female) were enrolled from 7 hospitals in Korea. Inclusion criteria were diagnosis of GERD and ability to properly complete a survey. Degree of disease knowledge was assessed using the translated, validated Korean Urnes questionnaire, which consists of 22 items related to GERD.
Mean percentage of correct answers was 46.3% and mean GERD knowledge score was 9.6. Degree of knowledge (mean percentage of correct answers) regarding etiology, prognosis and treatment of GERD were 49.5%, 36.7% and 37.5%, respectively. Degree of disease knowledge differed significantly according to age (P < 0.001), education (P < 0.001), income (P = 0.028), and occupation (P < 0.001). In multivariate analysis, using multiple logistic regression, the higher knowledge score group tended to have higher education, and professional occupation.
The surveyed Korean patients had relatively low disease knowledge, suggesting that a GERD educational program may be beneficial in Korea. Formulation of a program is underway.
Keywords: Gastroesophageal reflux; Knowledge; Korea; Surveys and questionnaires

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