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Dive into the research topics where G.N. Chua is active.

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Featured researches published by G.N. Chua.


ClinicoEconomics and Outcomes Research | 2014

Exploring the willingness to pay for a quality-adjusted life-year in the state of Penang, Malaysia

Asrul Akmal Shafie; Yen Wei Lim; G.N. Chua; M.A. Hassali

Introduction The incremental cost-effectiveness ratio (ICER) is typically compared with a reference value to support the cost-effectiveness of a decision. One method for estimating this value is to estimate the willingness-to-pay (WTP) for a quality-adjusted life-year (QALY). This study was conducted to explore the WTP for a QALY in the Malaysian population. Methods A cross-sectional, contingent valuation study was conducted in Penang, Malaysia. Respondents were selected from randomly chosen geographical grids of Penang. Respondents’ sociodemographic information, qualities of life, and WTP for one additional QALY were collected using predesigned questionnaires in face-to-face interviews. WTP values were elicited using a double-bound dichotomous choice via a bidding game approach. The Heckman selection model was applied to the analysis of the mean WTP/QALY values, where the “protest zero” values, which may contribute to selection bias, were excluded. Results The mean value of WTP for an additional QALY gained was estimated to be MYR (Malaysian Ringgit) 29,080 (~USD 9,000). Key factors that affected the WTP include ethnicity and estimated monthly household income. Conclusion The study findings suggested that the cost-effectiveness threshold value as studied in Penang, Malaysia was estimated to be MYR 29,080.


International Journal of Pharmacy Practice | 2014

Job satisfaction, organisation commitment and retention in the public workforce: a survey among pharmacists in Malaysia

G.N. Chua; Lai Jiuan Yee; Bee Ai Sim; Keat Hin Tan; Ng Khai Sin; M.A. Hassali; Asrul Akmal Shafie; Guat See Ooi

The aims of the study were to assess job satisfaction and organisational commitment among pharmacists working in the public sector and its influence on their likelihood to stay within the public workforce.


Journal of pharmacy practice and research | 2017

Consumers’ perspectives of Malaysian community pharmacists as health educators: A qualitative insight

Guat See Ooi; Mohamed Azmi Hassali; Asrul Akmal Shafie; David C. M. Kong; Vivienne Mak; G.N. Chua

Around the globe, community pharmacy has always been a health care hub made accessible to the public.


PLOS ONE | 2013

Patterns and Predictors of Non-Prescription Medicine Use among Malaysian Pharmacy Patrons: A National Cross Sectional Study

Mohamed Azmi Hassali; Abdul Haniff Mohamad Yahaya; Asrul Akmal Shafie; Fahad Saleem; G.N. Chua; Hisham Aljadhey

Objective The study aims to evaluate the predictors of non-prescription medicine purchasing patterns among pharmacy patrons in Malaysia. Methods A cross-sectional nationwide study was undertaken in 2011 in sixty randomly selected community pharmacies across 14 Malaysian states. A pharmacy exit survey was conducted over a 6-month period across Malaysia. A one-stage random cluster sampling technique was employed as there was no national sampling framework available for conducting this survey. Face-to-face interviews using a validated and pre-tested questionnaire were conducted by trained data collectors. The non-prescription medicine purchasing pattern was explored and analysed descriptively. Chi-square/Fisher exact test was used to determine the association between study variables. Multinomial logistic regression analysis was used to determine the predictors of type of non-prescription medicine purchased. Results A total of 2729 pharmacy patrons agreed to participate in 60 selected pharmacy outlets. A total of 3462 non-prescription medicine were purchased during the study period with an average of 1.3 medicines per participant. Most of the non-prescription medicine purchased was meant for alimentary tract and metabolism (31.8%), followed by respiratory system (19.4%) and musculoskeletal system (15.8%) usage. Factors found to be associated with the choice of non-prescription medicine purchased were age group [χ2 = 170.75, (df = 57), p<0.01], locality [χ2 = 48.16, (df = 19), p<0.01], gender [χ2 = 32.93, (df = 13), p = 0.002], ethnic group [χ2 = 118.89, (df = 39), p<0.01] and type of occupation [χ2 = 222.434, (df = 117), p<0.01]. Non-prescription medicine purchased defined about 20% of the variance in the combination of predictors such as locality, gender, age, ethnicity, type of occupation and household income. Conclusion The predictors for selection of non-prescription medicine were locality (urban or rural), gender, age, ethnicity, type of occupation and household income per month. Future studies need to explore the safety and effectiveness of using these non-prescription medicines.


Health Policy | 2010

A survey exploring knowledge and perceptions of general practitioners towards the use of generic medicines in the northern state of Malaysia

G.N. Chua; Mohamed Azmi Hassali; Asrul Akmal Shafie; Ahmed Awaisu


Value in Health | 2012

PHP83 Community Pharmacist'S Perceptions Towards the Quality of Locally Manufactured Generic Medicines: A Descriptive Study from Malaysia

M.A. Hassali; A.A. Shafie; Fahad Saleem; M. Atif; G.N. Chua; Imran Masood; N. Haq


Value in Health | 2014

Determination of Cost-Effectiveness Threshold For Malaysia

Yen Wei Lim; A.A. Shafie; G.N. Chua; M.A. Hassali


Value in Health | 2016

Assessment of Community Pharmacy Services in Malaysia: Perspectives from Community Pharmacists, General Practitioners, Consumers and Health Policy Stakeholders

Gs Ooi; A Ahmad Hassali; A.A. Shafie; David C. M. Kong; Vivienne Mak; G.N. Chua


International Journal of Pharmacy Practice | 2016

Empirical testing of external validity of discrete choice experiment (DCE): an application in pharmacy

G.N. Chua; Mandy Ryan; Terry Porteous; Christine Bond


Research in Social & Administrative Pharmacy | 2014

Community Pharmacists in Malaysia: Are They Ready for the Next Leap Forward?

Guat See Ooi; M.A. Hassali; A.A. Shafie; David C. M. Kong; G.N. Chua; Vivienne Mak

Collaboration


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M.A. Hassali

Universiti Sains Malaysia

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A.A. Shafie

Universiti Sains Malaysia

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Fahad Saleem

University of Balochistan

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N. Haq

Universiti Sains Malaysia

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Imran Masood

Universiti Sains Malaysia

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M. Atif

Universiti Sains Malaysia

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Guat See Ooi

Universiti Sains Malaysia

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