Electronic Physician (ISSN: 2008-5842) http://www.ephysician.ir September 2017, Volume: 9, Issue: 9, Pages: 5185-5190, DOI: http://dx.doi.org/10.19082/5185 Corresponding author: Hanan Khalid Alotaibi, Faculty of Medicine, Northern Border University, Arar, Kingdom of Saudi Arabia. Tel.: +966559042805, Email: hanan.alot@hotmail.com Received: July 22, 2017, Accepted: August 23, 2017, Published: September 2017 iThenticate screening: August 23, 2017, English editing: September 08, 2017, Quality control: September 09, 2017 © 2017 The Authors. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial- NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. Page 5185 Deep venous thrombosis among diabetic patients in King Abdulaziz University (KAU) Hospital, Jeddah, Kingdom of Saudi Arabia Hanan Khalid Alotaibi 1 , Nagah Mohamed Abo el-Fetoh 2 , Aseel MenwerAlanazi 1 , Omar Ayed Alanazi 1 , Abdullah Barghash Alanazi 1 , Mohammed Ali Alhowaish 1 , Hussam Saeed Busays Alzahrani 1 , Mashael Abdullah Alshammari 3 , Rawan Fulayyih ALrashidi 3 , Thikra Mohammed Alblowi 3 , Sarah Jemal Alqahtani 3 , Fatin Salem Almaashi 3 1 Intern, Faculty of Medicine, Northern Border University, Arar, Kingdom of Saudi Arabia 2 Associate professor, Community Medicine Department, Faculty of Medicine, Northern Border University, Arar, Kingdom of Saudi Arabia 3 Medical Intern, Faculty of Medicine, Hail University, Hail, Kingdom of Saudi Arabia Type of article: Original Abstract Background: Deep venous thrombosis (DVT) is a major cause of morbidity and mortality among hospitalized patients worldwide and, simultaneously, the most preventable. Studies revealed several risk factors of deep venous thrombosis in hospitalized patients. Objective: to identify frequency and factors associated with occurrence of deep venous thrombosis among diabetic patients referred to King Abdulaziz University (KAU) Hospital, Jeddah, Kingdom of Saudi Arabia. Methods: This cross-sectional hospital-based study was conducted from June to December, 2016. All diabetic patients referred to the hospital departments and who were suspected to have deep venous thrombosis (DVT) and subjected to Doppler examination were included in the study. A questionnaire was designed to obtain data about deep venous thrombosis frequency among participants and factors associated with the development of deep venous thrombosis among them. Data was collected through face to face interviews with patients included in the study. We used SPSS version 16 for data analysis through descriptive statistics and Chi-square test. Results: DVT was detected in 14.7 % of the examined patients. There were significant and positive associations between age and DVT (X 2 =10.13, p=0.03) and between ischemic heart disease and DVT (X 2 =1.628, p=0.043) with the development of deep venous thrombosis among the studied patients. On the other hand, gender, other comorbidities, history of previous DVT, being bed ridden and using orthopedic casting were not significantly associated with the occurrence of deep venous thrombosis among the participants. Conclusion: DVT development rate among the participants was 14.7 %. Aging was significantly associated with DVT occurrence. Most of the studied factors and comorbidities had no significant role in DVT development among participants and only ischemic heart disease was significantly associated with DVT development. Keywords: DVT, Diabetes, Risk factor 1. Introduction Deep venous thrombosis (DVT) is a major cause of morbidity and mortality among hospitalized patients worldwide and, simultaneously, the most preventable (1, 2). It is a condition caused by the formation of a thrombus in the venous system, preceded or followed by an inflammatory response of the vessel wall. When part of the thrombus breaks off, it can migrate through the circulatory system to the pulmonary artery, resulting in a pulmonary embolism (3, 4). Guidelines for prophylaxis of venous thrombosis have existed for over 15 years, however, these guidelines are completely used in less than 55% of indications (5). As a result, in every six cases of thromboembolism only one case could be avoided (6), and morbidity and mortality associated with DVT is still high among hospitalized patients (7, 8). Studies revealed several risk factors of deep venous thrombosis in hospitalized patients (7). Diabetes mellitus