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Liu YR, Wang Y, Wang J, Wang X. Association between illness perception and adherence to inhaler therapy in elderly Chinese patients with chronic obstructive pulmonary disease. Chron Respir Dis 2024; 21:14799731241286837. [PMID: 39313240 PMCID: PMC11425765 DOI: 10.1177/14799731241286837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/25/2024] Open
Abstract
Background: Despite the fact that inhaled medications serve as the foundation of chronic obstructive pulmonary disease (COPD) treatment, patient adherence to inhaler therapy remains low, significantly impacting health outcomes in disease management. The Common Sense Model of Self-Regulation suggests that illness perception plays a crucial role in individual behavior. Nevertheless, the relationship between illness perception and inhaler adherence, as well as the underlying mechanisms, remains unclear in the elderly Chinese COPD population. Objective: This study aimed to explore the correlation between dimensions of illness perception and adherence to inhaler therapy in elderly Chinese patients with COPD. Methods: A cross-sectional study was conducted by recruiting 305 participants (mean age: 70.96 years; 69.8% male) using convenience sampling from a tertiary hospital in Anhui, China. The Chinese versions of the Test of Adherence to Inhalers (TAI) and Brief Illness Perception Questionnaire (B-IPQ) were used to evaluate adherence to inhalation and perception of their illness in patients with COPD. Binary logistic regression analyses were used to explore the relationship between inhaler adherence and illness perception in patients with COPD. Results: 84.3% of participants showed poor adherence, and the mean (standard deviation) B-IPQ total score was 44.87 (6.36). The results indicated an essential correlation between illness perception and inhaler adherence. Specifically, personal control (AOR = 2.149, p < 0.001), treatment control (AOR = 1.743, p < 0.001), comprehension (AOR = 5.739, p < 0.001) and emotions (AOR = 1.946, p < 0.001) within illness perception emerged as significant positive predictors for inhaler adherence among patients with COPD. Conclusion: This study suggests that clinical practitioners should monitor the illness perception of patients with COPD and develop targeted intervention measures to improve patient adherence to inhaler therapy.
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Affiliation(s)
- You-Ran Liu
- School of Nursing, Bengbu Medical University, Bengbu, China
| | - Yan Wang
- Department of Nursing, Tangshan Vocational & Technical College, Tangshan, China
| | - Jie Wang
- School of Nursing, Bengbu Medical University, Bengbu, China
| | - Xi Wang
- School of Nursing, Bengbu Medical University, Bengbu, China
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Wang A, Wan J, Zhu L, Chang W, Wen L, Tao X, Jin Y. Frailty and medication adherence among older adult patients with hypertension: a moderated mediation model. Front Public Health 2023; 11:1283416. [PMID: 38115848 PMCID: PMC10728772 DOI: 10.3389/fpubh.2023.1283416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 11/20/2023] [Indexed: 12/21/2023] Open
Abstract
Objective Medication adherence has a critical impact on the well-being of older adult patients with hypertension. As such, the current study aimed to investigate the mediating role of health literacy between frailty and medication adherence and the moderating role of educational level. Methods This cross-sectional study included patients admitted to the geriatric unit of a hospital. Participants were interviewed using the four-item Morisky Medication Adherence Scale, the Frailty Phenotype Scale, and the Health Literacy Management Scale. Spearman's correlation coefficients were used to assess the association between variables. Mediation and moderated mediation analyses were performed using Process version 4.1 via Model 4 and 14, respectively. Results Data from 388 participants were analyzed. The median (IQR [P25-P75]) score for medication adherence was 4.00 (2.00-4.00). Results revealed that after controlling for age, sex, hypertension complication(s) and body mass index, frailty significantly contributed to medication adherence (βtotal -0.236 [95% confidence interval (CI) -0.333 to -0.140]). Medication adherence was influenced by frailty (βdirect -0.192 [95% CI -0.284 to -0.099]) both directly and indirectly through health literacy (βindirect -0.044 [95% CI -0.077 to -0.014]). Educational level moderated the pathway mediated by health literacy; more specifically, the conditional indirect effect between frailty and medication adherence was significant among older adult hypertensive patients with low, intermediate, and high educational levels (effect -0.052 [95% CI -0.092 to -0.106]; effect -0.041 [95% CI -0.071 to -0.012]; effect -0.026 [95% CI -0.051 to -0.006]). The relationship between frailty and medication adherence in older adult patients with hypertension was found to have mediating and moderating effects. Conclusion A moderated mediation model was proposed to investigate the effect of frailty on medication adherence. It was effective in strengthening medication adherence by improving health literacy and reducing frailty. More attention needs to be devoted to older adult patients with hypertension and low educational levels.
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Affiliation(s)
- Anshi Wang
- School of Public Health, Wannan Medical College, Wuhu, China
- Institutes of Brain Science, Wannan Medical College, Wuhu, China
| | - Jingjing Wan
- Department of Nursing, Anhui College of Traditional Chinese Medicine, Wuhu, China
| | - Lijun Zhu
- School of Public Health, Wannan Medical College, Wuhu, China
| | - Weiwei Chang
- School of Public Health, Wannan Medical College, Wuhu, China
| | - Liying Wen
- School of Public Health, Wannan Medical College, Wuhu, China
| | - Xiubin Tao
- Nursing Department, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Yuelong Jin
- School of Public Health, Wannan Medical College, Wuhu, China
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Hohn RE, Kopec JA, Sawatzky R, Poureslami I, FitzGerald JM. Measuring skill-based health literacy in chronic airway disease patients: the development and psychometric evaluation of the Vancouver airways health literacy tool (VAHLT). Qual Life Res 2023; 32:2875-2886. [PMID: 37428406 DOI: 10.1007/s11136-023-03447-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2023] [Indexed: 07/11/2023]
Abstract
PURPOSE This article describes the development of the Vancouver airways health literacy tool (VAHLT), a novel measure of skill-based health literacy specific to chronic airway diseases (CADs). Across several phases, psychometric characteristics of the VAHLT were examined and used to guide its development. METHODS An initial pool of 46 items was developed using input from patients, clinicians, researchers, and policy-makers. An initial patient sample (N = 532) was evaluated and used to inform item revisions. A revised 44-item pool was then evaluated using a second sample, the results of which aided in the selection of a final set of 30 items. The finalized 30-item VAHLT was then psychometrically evaluated using the second sample (N = 318). An item response theory approach was utilized to evaluate the VAHLT by assessing model fit, item parameter estimates, test and item information curves, and item characteristic curves. Reliability was assessed using ordinal coefficient alpha. We additionally assessed differential item functioning between asthma and COPD diagnoses. RESULTS The VAHLT demonstrated a unidimensional structure and reasonably discriminated patients in the lower range of health literacy estimates. The tool demonstrated strong reliability (α = .920). Two of the 30 items were found to exhibit non-negligible differential item functioning. CONCLUSIONS This study presents compelling evidence of validity in several areas for the VAHLT, including content and structural validity. Further external validation studies are needed and forthcoming. Overall, this work represents a strong first step towards a novel, skill-based, and disease-specific measure of CAD-related health literacy.
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Affiliation(s)
- Richard E Hohn
- Department of Psychology, Simon Fraser University, Burnaby, BC, Canada.
| | - Jacek A Kopec
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Richard Sawatzky
- School of Nursing, Trinity Western University, Langley, BC, Canada
- Centre for Health Evaluation and Outcome Sciences, Providence Health Care, Vancouver, BC, Canada
| | - Iraj Poureslami
- Faculty of Medicine, Respiratory Medicine Division, University of British Columbia, Vancouver, BC, Canada
- Canadian Multicultural Health Promotion Society (CMHPS), Burnaby, BC, Canada
- Division of Respiratory Medicine, Centre for Lung Health, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - J Mark FitzGerald
- Faculty of Medicine, Respiratory Medicine Division, University of British Columbia, Vancouver, BC, Canada
- Division of Respiratory Medicine, Centre for Lung Health, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, BC, Canada
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Poletti V, Pagnini F, Banfi P, Volpato E. Illness Perceptions, Cognitions, and Beliefs on COPD Patients' Adherence to Treatment - A Systematic Review. Patient Prefer Adherence 2023; 17:1845-1866. [PMID: 37533752 PMCID: PMC10392903 DOI: 10.2147/ppa.s412136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/07/2023] [Indexed: 08/04/2023] Open
Abstract
Background Chronic Obstructive Pulmonary Disease (COPD) is a chronic inflammatory lung disease characterized by persistent respiratory symptoms and airflow limitation. Besides its irreversibility, COPD is a treatable condition, and patients would strongly benefit from being adherent to their treatments. However, almost half of them are non-adherent, and, according to several recent studies, the way the patient perceives the disease might influence this variable. Aim This systematic review provided a synthesis of studies about the relationships between illness perceptions (IP), cognitions, beliefs, and adherence in COPD. Methods English language publications were searched in PubMed, Medline, Scopus, ResearchGate, PsycINFO, and Cochrane Library databases from November 2022 to February 2023, following PRISMA guidelines. The reference lists of eligible studies were also searched. Data extraction and critical appraisal were undertaken by two reviewers working independently. Results A total of 14 studies were included. Adherence to treatment in COPD is confirmed to be low, using both self-report questionnaires and objective assessment systems. Most studies concluded that COPD is perceived as a moderate threat destined to last forever, even if many participants referred to little disease knowledge. This perception did not change between adherent and non-adherent groups. Those who considered more necessary to take their medicines and had a caregiver were more adherent and less concerned about their future. On the other side, forgetfulness, lack of trust in medications, and difficulties in understanding how to take them were perceived as the main causes of non-adherence. Other predictors of non-adherence, like depression, low self-efficacy, and severity of disease were confirmed. Conclusion The systematic review highlights the variability of the relationship between IP, cognitions and beliefs, and COPD treatment adherence. A new level of awareness of the relationship between patients' subjective point of view and treatment adherence may inform future treatment options and promote a more personalized intervention.
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Affiliation(s)
- Valentina Poletti
- Department of Psychology, Università Cattolica Del Sacro Cuore, Milan, Italy
| | - Francesco Pagnini
- Department of Psychology, Università Cattolica Del Sacro Cuore, Milan, Italy
| | | | - Eleonora Volpato
- Department of Psychology, Università Cattolica Del Sacro Cuore, Milan, Italy
- IRCCS Fondazione Don Gnocchi, Milan, Italy
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Association between health literacy and medication adherence in chronic diseases: a recent systematic review. Int J Clin Pharm 2023; 45:38-51. [PMID: 36369411 DOI: 10.1007/s11096-022-01470-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 08/04/2022] [Indexed: 11/13/2022]
Abstract
BACKGROUND Poor medication adherence is a serious barrier to successful chronic disease management. Previous reviews reported that low health literacy could be associated with medication non-adherence but conclusions were uncertain. AIM The aim of this systematic review was to clarify the relationship between health literacy and medication adherence in adults with chronic diseases. A secondary objective was to identify the factors that influence medication adherence. METHOD Publications analyzing the relationship between health literacy and adherence in adults with chronic diseases were identified through 6 databases between 2015 and 2020. A quality assessment was conducted in order to improve the interpretation of the relationship between health literacy and medication adherence. A narrative synthesis was then performed to describe the relationship between health literacy and medication adherence. The factors influencing medication adherence were then analyzed as a secondary outcome. RESULTS Among the 27 studies, 17 and 10 were considered to be of good and medium methodological quality, respectively. Concerning the relationship between health literacy and adherence, 14 reported a positive relationship, 1 study suggested a negative relationship, 3 found mixed results, and 9 reported not finding a relationship. Patient-related factors such as medication beliefs, self-efficacy, or medication knowledge, as well as demographic factors such as ethnic minority and incomes influence medication adherence. CONCLUSION The present review confirms an unclear relationship between health literacy and medication adherence. Although health literacy plays a substantial role in medication adherence, other factors must be taken into account when addressing non-adherence.
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Khatiwada B, Rajbhandari B, Mistry SK, Parsekar S, Yadav UN. Prevalence of and factors associated with health literacy among people with Noncommunicable diseases (NCDs) in South Asian countries: A systematic review. CLINICAL EPIDEMIOLOGY AND GLOBAL HEALTH 2022. [DOI: 10.1016/j.cegh.2022.101174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Health Literacy Level and Comprehension of Prescription and Nonprescription Drug Information. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19116665. [PMID: 35682249 PMCID: PMC9180079 DOI: 10.3390/ijerph19116665] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/27/2022] [Accepted: 05/28/2022] [Indexed: 11/16/2022]
Abstract
The aim of this study was to investigate the level of misunderstanding of medication information in Korean adults after stratifying by level of health literacy and to identify the factors influencing the misunderstanding of medication information and reading amounts of information on OTC drug labels. A cross-sectional survey was performed with 375 adult participants using the survey instrument. Multiple linear regression analyses were performed to identify factors which influence misunderstanding of medication information. Participants misunderstood 20% of words on OTC drug labels, 9% of prescription drug instructions, and 9% of pictograms. Participants on average read 59% of the overall contents of the OTC drug labels. As prescription drugs’ dosing regimens became more complicated, the level of misunderstanding instructions increased. The level of misunderstanding words on OTC drug labels significantly decreased as participants had adequate health literacy (β = −18.11, p < 0.001) and higher education levels (β = −6.83, p < 0.001), after adjusting for the study variables. The level of misunderstanding instructions for prescription drugs increased as participants became older (β = 8.81, p < 0.001) and had lower education levels (β = −5.05, p < 0.001), after adjusting for the study variables. The level of misunderstanding pictograms was similar to that of misunderstanding instructions for prescription drug labels. The amount of reading information on OTC drug labels significantly increased as respondents had adequate health literacy (β = 9.27, p < 0.001), were older (β = 12.49, p < 0.001), or had chronic diseases (β = 7.49, p = 0.007). Individuals’ health literacy level, reading behaviors, and complexity of medication instructions are associated with misunderstanding of medication information. Appropriate word choices in drug labels and an improved format of medication instructions could increase understanding of medication information and prevent adverse drug reactions.
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Poureslami I, FitzGerald JM, Tregobov N, Goldstein RS, Lougheed MD, Gupta S. Health literacy in asthma and chronic obstructive pulmonary disease (COPD) care: a narrative review and future directions. Respir Res 2022; 23:361. [PMID: 36529734 PMCID: PMC9760543 DOI: 10.1186/s12931-022-02290-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/09/2022] [Indexed: 12/23/2022] Open
Abstract
Respiratory self-care places considerable demands on patients with chronic airways disease (AD), as they must obtain, understand and apply information required to follow their complex treatment plans. If clinical and lifestyle information overwhelms patients' HL capacities, it reduces their ability to self-manage. This review outlines important societal, individual, and healthcare system factors that influence disease management and outcomes among patients with asthma and chronic obstructive pulmonary disease (COPD)-the two most common ADs. For this review, we undertook a comprehensive literature search, conducted reference list searches from prior HL-related publications, and added insights from international researchers and scientists with an interest in HL. We identified methodological limitations in currently available HL measurement tools in respiratory care. We also summarized the issues contributing to low HL and system-level cultural incompetency that continue to be under-recognized in AD management and contribute to suboptimal patient outcomes. Given that impaired HL is not commonly recognized as an important factor in AD care, we propose a three-level patient-centered model (strategies) designed to integrate HL considerations, with the goal of enabling health systems to enhance service delivery to meet the needs of all AD patients.
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Affiliation(s)
- Iraj Poureslami
- grid.417243.70000 0004 0384 4428Division of Respiratory Medicine, Centre for Lung Health, Vancouver Coastal Health Research Institute, University of British Columbia, 716-828 West 10th Avenue, Vancouver, BC V5Z 1M9 Canada ,Canadian Multicultural Health Promotion Society (CMHPS), Vancouver, BC Canada
| | - J. Mark FitzGerald
- grid.417243.70000 0004 0384 4428Division of Respiratory Medicine, Centre for Lung Health, Vancouver Coastal Health Research Institute, University of British Columbia, 716-828 West 10th Avenue, Vancouver, BC V5Z 1M9 Canada
| | - Noah Tregobov
- grid.417243.70000 0004 0384 4428Division of Respiratory Medicine, Centre for Lung Health, Vancouver Coastal Health Research Institute, University of British Columbia, 716-828 West 10th Avenue, Vancouver, BC V5Z 1M9 Canada ,grid.17091.3e0000 0001 2288 9830Faculty of Medicine, Vancouver-Fraser Medical Program, University of British Columbia, Vancouver, BC Canada
| | - Roger S. Goldstein
- grid.17063.330000 0001 2157 2938Department of Physical Therapy, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada ,Respiratory Medicine, Westpark Healthcare Centre, Toronto, Canada ,grid.17063.330000 0001 2157 2938Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON Canada
| | - M. Diane Lougheed
- grid.410356.50000 0004 1936 8331Asthma Research Unit, Department of Medicine, Kingston Health Sciences Centre, Queen’s University, Kingston, ON Canada ,grid.418647.80000 0000 8849 1617Institute for Clinical Evaluative Sciences, Toronto, ON Canada
| | - Samir Gupta
- grid.415502.7Unity Health, Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Division of Respirology, Department of Medicine, University of Toronto, Toronto, ON Canada
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