Factors influencing opioid-taking self-efficacy and analgesic adherence in Taiwanese outpatients with cancer

Liang, Shu-Yuan, Yates, Patsy, Edwards, Helen E., & Tsay, Shiow-Luan (2008) Factors influencing opioid-taking self-efficacy and analgesic adherence in Taiwanese outpatients with cancer. Psycho-Oncology : Journal of the Psychological, Social and Behavioral Dimensions of Cancer, 17(11), pp. 1100-1107.

View at publisher


Aim: Although research has suggested that medication adherence rates are lower than what is needed to achieve optimal pain control, the role of patient beliefs and attitudes in influencing opioid adherence has rarely been examined. Perceived self-efficacy is reported to be an important construct in predicting and enhancing adherence behaviour. The purpose of this study was to explore the relationship between opioid-taking self-efficacy, opioid beliefs, adherence behaviours, and pain experience amongst Taiwanese cancer outpatients.----- Method: The cross-sectional study included 92 oncology outpatients in two teaching hospitals in the Taipei area of Taiwan. The research instruments included the Opioid-Taking Self-Efficacy Scale-Cancer (OTSES-CA), the Pain Opioid Analgesic Beliefs Scale-Cancer (POABS-CA), opioid adherence, and the Brief Pain Inventory-Chinese (BPI-Chinese).----- Results: Opioid-taking self-efficacy demonstrated a significant positive relationship with patients' opioid adherence (r=0.22, p<0.05) and pain relief (r=0.35, p<0.01), while also demonstrating a significant positive correlation with worst pain (r=0.25, p<0.05). In addition, the more negative beliefs regarding opioids the patient had, the worse their adherence to around the clock analgesic regimen (r=-0.30, p<0.01). Multivariate analysis identified opioid-taking self-efficacy continued to have a significant independent influence on opioid adherence and pain relief, after controlling for key demographic variables. Self-efficacy accounted for 4% (R=0.04, p=0.043) of the variance and opioid beliefs accounted for 8% (R=0.08, p=0.007) of the variance in opioid adherence. Multivariate analysis also identified that opioid-taking self-efficacy accounted for 11% (R=0.11, p=0.001) of the variance in pain relief, but opioid beliefs did not continue to have an independent effect for this outcome. Conclusions: The study highlights the potential importance of a patient's self-efficacy beliefs in adherence to medication and key pain outcomes.

Impact and interest:

20 citations in Scopus
Search Google Scholar™
16 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 18008
Item Type: Journal Article
Refereed: Yes
Additional URLs:
Keywords: Cancer outpatients, Self-efficacy measurement, Confidence measurement, Reliability, Validity
DOI: 10.1002/pon.1326
ISSN: 1057-9249
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > NURSING (111000) > Nursing not elsewhere classified (111099)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Nursing
Deposited On: 30 Apr 2009 02:20
Last Modified: 29 Feb 2012 13:46

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page