Patient Preference and Adherence (Dec 2022)
Relationship Between Family Caregiver Burden and Medication Adherence in Patients with Mechanical Valve Replacement: A Structural Equation Model
Abstract
Lijuan Liu,1,2,* Wenzhuo Huang,1,2,* Zhuoer Huang,1,3 Jiaxin Liu,1,3 Xiaoyuan Zheng,1 Jing Tang,1,2 Ying Wu,1 Xiaohui Wang,1 Yongzhen Liao,4 Li Cong1 1School of Medicine, Hunan Normal University, Changsha, People’s Republic of China; 2Teaching and Research Section of Clinical Nursing, Xiangya Hospital of Central South University, Changsha, People’s Republic of China; 3Xiangya School of Nursing, Central South University, Changsha, People’s Republic of China; 4Shunde Polytechnic, Foshan, People’s Republic of China*These authors contributed equally to this workCorrespondence: Li Cong, School of Medicine, Hunan Normal University, Changsha, People’s Republic of China, Tel/Fax +86-0731-88912446, Email [email protected]: Oral anticoagulant is a necessary long-term treatment after mechanical valve replacement (MVR), and medication adherence has a great impact on patients with MVR. Although family caregiver burden is negatively correlated with medication adherence, little is known about the underlying mechanism.Purpose: To test whether family caregiver burden influences medication adherence through post-traumatic growth or medication literacy in patients with MVR.Patients and Methods: A total of 206 patients after MVR were included in this cross-sectional study from July 2021 to December 2021. Data regarding medication adherence, family caregiver burden, post-traumatic growth, and medication literacy were collected by questionnaires. Data were analyzed through SPSS, and pathway analysis was conducted by using AMOS, based on the bootstrapping method.Results: Post-traumatic growth was positively associated with medication adherence (r = 0.284, P < 0.05). Post-traumatic growth independently mediated the association of family caregiver burden on medication adherence [β = 0.32, 95% confidence intervals: (− 0.016, − 0.008)]. The mediated effect value for post-traumatic growth was 0.07, accounting for 24.14% of the total effect. The model’s fit indices were adequate.Conclusion: The mediating effect of post-traumatic growth between family caregiver burden and medication adherence existed in patients with MVR. Interventions considering post-traumatic growth may be useful to increase medication adherence and improve patient rehabilitation.Keywords: medication adherence, family caregiver burden, post-traumatic growth, medication literacy, mediation analyses, mechanical valve replacement
