Diabetes, Metabolic Syndrome and Obesity (Aug 2022)

Validation of Diabetes Knowledge Questionnaire (DKQ) in the Taiwanese Population — Concurrent Validity with Diabetes-Specific Quality of Life Questionnaire Module

  • Hsieh MH,
  • Chen YC,
  • Ho CH,
  • Lin CY

Journal volume & issue
Vol. Volume 15
pp. 2391 – 2403

Abstract

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Meng-Hsueh Hsieh,1 Yu-Ching Chen,2 Chun-Heng Ho,1,* Chung-Ying Lin2– 5,* 1Department of Industrial Design, College of Planning and Design, National Cheng Kung University, Tainan, Taiwan; 2Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan; 3Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan; 4Biostatistics Consulting Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; 5Department of Occupational Therapy, College of Medicine, National Cheng Kung University, Tainan, Taiwan*These authors contributed equally to this workCorrespondence: Chung-Ying Lin, Institute of Allied Health Sciences, Department of Public Health, Department of Occupational Therapy, Biostatistics Consulting Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Email [email protected] Chun-Heng Ho, Department of Industrial Design, College of Planning and Design, National Cheng Kung University, Tainan, Taiwan, Email [email protected]: Diabetes knowledge is important for people with type 2 diabetes mellitus (DM) to improve their health. Therefore, it is important to validate an instrument for assessing diabetes knowledge. The present study aimed to validate the 24-item Diabetes Knowledge Questionnaire (DKQ).Patients and Methods: The 24-item DKQ and Diabetes-specific Quality of Life Module (DMQoL) were administered to 425 patients (mean±SD age=58.4± 11.6) with type 2 DM.Results: The 24-item DKQ was first examined for its factor structure using exploratory factor analysis (EFA). Items with low factors loadings were removed and 18 items were retained to make a DKQ-18. In DKQ-18, five factors were identified, which were named as diabetes etiology and symptoms (F1), intermediate nursing (F2), complications (F3), diet and treatment (F4), and elementary nursing (F5). The DKQ-18 had satisfactory internal consistency (Cronbach’s α= 0.732 and McDonald’s ω=0.748), good known-group validity (participants with a higher level of education showed better score in DKQ-18; participants with HbA1c ≤ 7 had better score in DKQ-18 compared to group of HbA1c level > 8.5), acceptable test–retest reliability (r=0.69), adequate responsiveness (DKQ-18 can detect knowledge change), and concurrent validity with DMQoL.Conclusion: The DKQ-18 is a valid measure for assessing diabetes knowledge. The DKQ-18 could evaluate participants’ diabetes knowledge and improve their diabetes knowledge and self-care through a diabetes team and serve as a tool to evaluate the knowledge of participants with type 2 DM.Keywords: diabetes mellitus, knowledge, diabetes care, self-care, psychometrics

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