ABSTRACT The main concern in Type 2 Diabetes Mellitus (T2DM) management is to control the glycaemic level and thus prevent complications by behavioural modifcations as a part of the government’s national strategic plan. The patient should know about the disease for behavioural modifcation to be implemented. Thus, this study evaluated the level of knowledge among T2DM patients in primary healthcare in the West Coast Division of Sabah. This is a cross- sectional study conducted in 2015 involving 15 primary healthcare clinics. A validated Malaysian version of the Michigan Diabetes Knowledge Test (MDKT) questionnaire was used to assess patients’ diabetes knowledge. The mean age of 369 patients is 54.9 years old (SD = 11.04). The means of knowledge scores were signifcantly diferent among the age group, education level, and employment status. No signifcant diferences in knowledge were found in the group regarding the duration of diabetes and glycaemic control. Of 369 diabetic patients, 26.3% had poor knowledge, 65.0% had adequate knowledge, and only 8.7% had good knowledge. Overall, patients with T2DM in primary healthcare clinics have adequate knowledge regarding diabetes. Our study’s fndings indicate that patients’ knowledge is associated with age group, level of education, and employment status. Healthcare providers should plan a good strategy to educate their patients based on these diferences. INTRODUCTION Type 2 diabetes mellitus (T2DM) is a disease that causes a high glucose level in the blood. T2DM prevalence is increasing worldwide and ORIGINAL ARTICLE The Diabetes Knowledge Assessment in Type 2 Diabetic Patients: A Survey in West Coast Division of Sabah Nadirah Sulaiman 1* , Peter Seah Keng Tok 2 , Kueh Bing Ling 3 , Ammar Rafidah Saptu 4 , Raja Nurul Izni Raja Mohd Nordin 5 , Juhanah Gimbo 1 , Michal Christina Steven 6 Borneo Journal of Medical Sciences 16 (2) May, 2022: 23 –30 1 Clinical Research Centre, Hospital Queen Elizabeth, Ministry of Health Malaysia, Sabah, Malaysia 2 Institute of Clinical Research, National Institute of Health, Ministry of Health Malaysia, Selangor, Malaysia 3 Clinical Research Centre, Hospital Wanita dan Kanak-Kanak Sabah, Ministry of Health Malaysia, Sabah, Malaysia 4 Papar District Health Office, Papar, Ministry of Health Malaysia, Sabah, Malaysia 5 Hospital Universiti Sains Malaysia, Kelantan, Malaysia 6 Sabah State Health Department, Ministry of Health Malaysia, Sabah, Malaysia * Corresponding author’s email: nadirah.crc@gmail.com Received: 19 August 2021 Accepted: 3 December 2021 Published: 31 May 2022 DOI: https://doi.org/10.51200/bjms.vi.3314 Borneo Journal of Medical Sciences BJMS BJMS Keywords: diabetes knowledge, type 2 diabetes, Sabah