Skip to main content

Validation of an instrument to measure patients' experiences of medicine use: the Living with Medicines Questionnaire

Krska, Janet, Katusiime, Barbra, Corlett, Sarah (2017) Validation of an instrument to measure patients' experiences of medicine use: the Living with Medicines Questionnaire. Patient Preference and Adherence, 2017 (11). pp. 671-679. ISSN 1177-889X. (doi:10.2147/PPA.S126647)

Abstract

Background: Medicine-related burden is an increasingly recognised concept, stemming from the rising tide of polypharmacy, which may impact on patient behaviours, including non-adherence. No instruments currently exist which specifically measure medicine-related burden. The Living with Medicines Questionnaire was developed for this purpose. Objectives: This study validated the Living with Medicines Questionnaire in a sample of adults using regular prescription medicines in the UK. Methods: Questionnaires were distributed in community pharmacies and public places in south-east England, or online via UK health websites and social media. A total of 1177 were returned 507 (43.1%) from pharmacy distribution and 670 (56.9%) on-line. Construct validity was assessed by principal components analysis and item reduction undertaken on the original 60-item pool. Known-groups analysis assessed differences in mean total scores between participants using different numbers of medicines and those requiring assistance with medicine use. Internal consistency was assessed by Cronbach’s alpha. Free-text comments were analysed thematically to substantiate underlying dimensions. Results: A 42-item, 8-factor, structure, comprising inter-correlated dimensions (patient-doctor relationships and communication about medicines; patient-pharmacist communication about medicines; interferences to daily life; practical difficulties; effectiveness; acceptance of medicine use; autonomy/control over medicines; and concerns about medicine use) was derived, which explained 57.4% of the total variation. Six of the eight subscales have acceptable internal consistency (? > 0.7). More positive experiences were observed among patients using eight or fewer medicines compared to nine or more, and those independent with managing/using their medicines versus those requiring assistance. Free-text comments, provided by almost a third of respondents, supported the domains identified. Conclusions: The resultant Living with Medicines Questionnaire (LMQ-2) is a valid and reliable multidimensional measure of prescription medicine use experiences, which covers more diverse domains than existing questionnaires. However, further validation work is necessary.

Item Type: Article
DOI/Identification number: 10.2147/PPA.S126647
Uncontrolled keywords: medicines, polypharmacy, patient experience, questionnaire, validation
Divisions: Faculties > Sciences > Medway School of Pharmacy
Depositing User: Janet Krska
Date Deposited: 30 Mar 2017 11:13 UTC
Last Modified: 29 May 2019 18:53 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/61096 (The current URI for this page, for reference purposes)
Krska, Janet: https://orcid.org/0000-0002-4148-5652
  • Depositors only (login required):

Downloads

Downloads per month over past year