Applying the theory of planned behavior to investigate type 2 diabetes patients' intention to receive injection therapy

Su-Han Hsu; Kung-Pei Tang; Chia-Hui Lin; Pei-Chun Chen; Li-Hsuan Wang

doi:10.3389/fpubh.2023.1066633

Applying the theory of planned behavior to investigate type 2 diabetes patients' intention to receive injection therapy

Front Public Health. 2023 Feb 16:11:1066633. doi: 10.3389/fpubh.2023.1066633. eCollection 2023.

Authors

Su-Han Hsu^{1

2

3}, Kung-Pei Tang^{4

5}, Chia-Hui Lin^{1

3}, Pei-Chun Chen¹, Li-Hsuan Wang^{2

6}

Affiliations

¹ Department of Pharmacy, Taipei City Hospital Yangming Branch, Taipei, Taiwan.
² School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan.
³ Department of Pharmacy and Master Program, Tajen University, Pingtung City, Taiwan.
⁴ Department of Education and Humanities in Medicine, School of Medicine, Taipei Medical University, Taipei, Taiwan.
⁵ Department of Early Childhood and Family Education, College of Education, National Taipei University of Education, Taipei, Taiwan.
⁶ Department of Pharmacy, Taipei Medical University Hospital, Taipei, Taiwan.

Abstract

Objectives: This study applied the theory of planned behavior (TPB) in shared decision making (SDM) to understand behavioral intention in patients with type 2 diabetes with regard to injection therapy for blood sugar control.

Methods: A cross sectional study was conducted. Two hundred and fifty-four patients with type 2 diabetes participated this study and were interviewed by pharmacists in different clinics. A patient decision aid (PDA) entitled "Should I receive injection therapy regarding my type 2 diabetes condition?" was developed for this study and served as interview agenda which comprised 18 items to inquire their willingness to use injection therapy and related considerations during the SDM process.

Results: The questionnaires were revised using item analysis, exploratory factor analysis, and a criteria of Cronbach's α > 0.7. This resulted in three constructs for all questionnaires that fit the TPB model. Attitude (β = 0.432; P < 0.001) and PBC (β = 0.258; P < 0.001) were directly correlated with intention. TPB explained 35.2% of the variance in intention toward the use of injection therapy.

Conclusions: Attitude and PBC toward injection therapy positively and significantly influence the patients' intention to use injection therapy.

Practical implications: These findings identify a key association for understanding behavioral intention in patients with type 2 diabetes with regard to blood sugar control during SDM.

Keywords: injection therapy; patient decision aid; shared decision making; the theory of planned behavior; type 2 diabetes.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Blood Glucose
Cross-Sectional Studies
Diabetes Mellitus, Type 2*
Humans
Intention*
Theory of Planned Behavior

Substances

Blood Glucose

Grants and funding

This work was financially supported by the Ministry of Science and Technology of Taiwan (MOST 111-2410-H-038-020), Taipei Medical University Hospital (111TMUH-MOST-07), and Taipei City Hospital (TPCH-110-50). This manuscript was edited by Wallace Academic Editing.