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Reliability and validity of the Malay version of the return and disposal of unused medications (redium) questionnaire in Malaysia and the general public’s knowledge, attitude and practice on unused medications
Siew Chin Ong1, Irwinder Kaur Chhabra2, Guat See Ooi3, Nur Aizati Athirah Daud4, Asrul Akmal Shafie5, Mohamed Azmi Ahmad Hassali6.
Introduction: In understanding of the general public’s knowledge, attitude and practice (KAP) on the returning and disposal of unused medications is imperative towards the designing of better educational materials and policy development. The objectives of this study was to validate the Malay version of the Return and Disposal of Unused Medications (ReDiUM) questionnaire for use among Malaysian as well as to gain an understanding on these patterns of behaviour among Malaysians. Methods: The English version of the ReDiUM was translated into Malay language according to international guidelines. Content and face validity of the questionnaire was examined by experts. Subsequently, the questionnaire was pilot tested in 10 native speakers. Reliability was assessed using Cronbach’s alpha coefficients. The test-retest reliability was measured with Spearman’s Correlation Coefficient and Cohen’s coefficient. Public were recruited through convenient sampling for the study. Results: The study recruited 319 re- spondents. For test-retest reliability, all the correlation coefficient values were >0.5 indicating strong reliability (26 respondents). Except few items, most of the kappa coefficients were >0.61 indicating substantial to almost perfect agreement. Cronbach’s alpha of the KAP domains were 0.585, 0.770 and 0.759, respectively. The median knowl- edge score was only 50% with some negative attitudes and practices found. Conclusions: The translated question- naire was valid and reliable for use in Malaysia with acceptable to strong internal consistency and most items with substantial to almost perfect agreement. The findings from the study provide supporting evidence for policy makers to develop interventions to help with reducing wastage and optimize healthcare expenditure.
Affiliation:
- Universiti Sains Malaysia (USM), Malaysia
- Universiti Sains Malaysia (USM), Malaysia
- Universiti Sains Malaysia (USM), Malaysia
- Universiti Sains Malaysia (USM), Malaysia
- Universiti Sains Malaysia (USM), Malaysia
- Universiti Sains Malaysia (USM), Malaysia
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Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
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3 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
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CiteScore (0.2) |
Rank |
Q4 (Medicine (all)) |
Additional Information |
SJR (0.144) |
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