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  1. Fulltext Occupational Safety and Health Management System (OSHMS) guideline compliance among medical laboratories in Klang Valley
    Anuar, I., Zahedi, F., Kadir, A., Mokhtar, A.B.
    Malaysian Journal of Community Health, 2008;14(1):39-44.
    MyJurnal
    Background: Nowadays, most medical laboratories in Malaysia practice occupational safety and health based on standard operating procedure and sometimes ad-hoc characteristic limited to only internal use. The level of compliance of the national occupational safety and health management system (OSHMS) guidelines among medical laboratories in Malaysia is still largely unexplored.
    Methods: This study was carried out on 34 medical laboratories consisting of 17 public medical laboratories and 17 private medical laboratories in Klang Valley using self-administered questionnaire based on guideline of OSHMS6. This study covered 112 medical laboratories units including pathology chemistry (18), microbiology (20), virology (7), histopathology (16), cytopathology (17), hematology (19) and 15 multi discipline medical laboratories.
    Results: This study showed the level of compliance to the national OSHMS guideline among medical laboratories who are MS ISO 15189:2004 accredited & have a higher scores (p
  2. Fulltext Laboratory-acquired injuries in medical laboratory: a survey of three referral medical laboratories from year 2001 to 2005
    Anuar, I., Zahedi, F., Kadir, A., Mokhtar, A.B.
    Malaysian Journal of Community Health, 2008;14(1):32-38.
    MyJurnal
    Background: The occupationally acquired accident and injuries in Malaysian medical laboratories are still largely unexplored prior to this survey. Some of these questions are attempted in this survey and act as source of reference for the number and accident injuries in medical laboratories in the area of Klang Valley and also in Malaysia.
    Methods : This survey was carried out based on recordable cases throughout the calendar year of 2001 to 2005 from 3 main medical laboratories of Hospital Kuala Lumpur (HKL), Hospital Universiti Kebangsaan Malaysia (HUKM) and Pusat Perubatan Universiti Malaya (PPUM).
    Results : The average annual incident rate for this three medical laboratories is 2.05/100 full time equivalent (FTE) employees. The annual incident rate in individual medical laboratory is 2.04/100 FTE (HKL), 2.07/100 FTE (HUKM) and 2.04/100 FTE (PPUM) employees, respectively. The most common injury that is 25.3% of the total cases reported was due to cuts by sharp objects and the second most common injury was exposure to biohazard and chemical substances which constitutes 19.9% of the total cases. . Needle prick injury (16.8%), fire (8.4%), fall/slip (6.3%) and gases leak and locked in cold room were reported as one case each.
    Conclusion : The average incident rate from this study is remarkably similar compared with the incident injury rate reported by BLS (2006) which is 2.1/100 FTE in the average size of medical laboratory and diagnostic. Besides this incident rate of injury and illness as a comparison, it also can be used as a benchmark to evaluate the safety performance among medical laboratories in Malaysia.
  3. Fulltext Tahap pengetahuan keselamatan dan kesihatan pekerjaan di kalangan pekerja di makmal perubatan di Lembah Klang
    Anuar, I., Zahedi, F., Kadir, A., Mokhtar, A.B.
    Malaysian Journal of Community Health, 2009;15(2):35-42.
    MyJurnal
    Background : A safety culture practice through prevention needs skillful, knowledgeable and competencies workers. The effectiveness of occupational safety and health programme implementation needs the knowledge related to Occupational Safety and Health Acts, 1994 (OSHA 1994) and its regulations.
    Objective : This study was to determine the level of knowledge and awareness towards Occupational Safety and Health (OSH) aspects among workers in medical laboratory.
    Methodology : A cross-sectional study was carried out on 34 medical laboratories in which 17 were from private and another 17 laboratories were from public sectors. It consists of 112 medical laboratory disciplines. Data were obtained using self-administered questionnaire consisting of 33 questions related to Occupational Safety and Health (OSH). Each question was coded “know” and “do not know” and respondents were needed to state their understanding towards each OSH issue tendered.
    Results : Respondent’s level of knowledge was analyzed according to socio-demography and socioeconomic factors. OSH level of knowledge among medical laboratory workers showed that there are significant differences (p0.05) in OSH knowledge according to between sex, marital status, income and services sectors among workers in medical laboratories. Only about 60.5% of respondents knew the existence of OSHA 1994, whereas those who knew about OSHA 1994 regulations were below than 50.0% from overall respondents.
    Conclusion : Promotion and practices of dynamic safety culture through prevention needs high knowledge of OSH.
  4. Fulltext Occupational safety and health risk perception among medical laboratory workers in Klang Valley
    Anuar, I., Zahedi, F., Kadir, A., Mokhtar, A.B.
    Malaysian Journal of Community Health, 2009;15(2):77-82.
    MyJurnal
    Background : Risk management strategy at the workplace needs two way interactions between employee and employer. Therefore, study on risk perception among workers based on scientific analysis is needed to gain knowledge and understanding on how workers perceived risk at the workplace in order to design risk management strategies more effectively.
    Methodology : A cross sectional study was carried out among 628 respondents from 36 medical laboratories in the public and private sector in Klang Valley. Using a self administered questionnaire, respondents were required to perceive risk on 30 hazards which have been identified in the medical laboratory. Each hazard was encoded by using Likert scale 1= not risky, 2= risky but low, 3= moderate risk, 4= high risk and 5= very high risk.
    Result : Overall, the study showed that working in the medical laboratory was perceived to of moderate risk. When comparing among ethic groups, the Malays had the highest perception of risk (3.07±0.88) as compared with Indians (3.03±0.88) and the Chinese (2.78±0.90). Employee with higher education and position level perceived low level of risk compared to those with lower education and position level. For those working in different types of laboratories, there are significant difference on risk perception, (p=0.001). Employees who work in government sector perceived higher (3.12±0.93) risk compared to workers in private sector (2.85±0.88). In terms of OSH based knowledge, those with higher level of education and position have a high score knowledge on OSH compared to those have lower education and position level.
    Conclusion : This study showed that risk perception among workers in medical laboratory is influenced by socio-demography factor such race, education level, job position and the laboratory where the respondents are working.
  5. Fulltext Perlaksanaan sistem pengurusan keselamatan dan kesihatan pekerjaan di makmal perubatan: faktor dorongan dan halangan utama
    Anuar, I., Zahedi, F., Kadir, A., Mokhtar, A.B.
    Malaysian Journal of Community Health, 2010;16(1):10-20.
    MyJurnal
    Background : The implementation of Occupational Safety and Health Management System (OSHMS) requires a level of measurement. The effectiveness of OSHMS implementation was influenced by inhibiting and supporting factors. The objective of this study was to determine the inhibiting and supporting factors towards the implementation of OSHMS in medical laboratories.
    Methodology : The implementation of Occupational Safety and Health Management System (OSHMS) requires a level of measurement. The effectiveness of OSHMS implementation was influenced by inhibiting and supporting factors. The objective of this study was to determine the inhibiting and supporting factors towards the implementation of OSHMS in medical laboratories.
    Result : This study showed the level of compliance to the OSHMS MS1722 guideline among medical laboratories who are MS ISO 15189 accredited & have a higher scores in overall measurement indicators OSHMS compared to those do not have SAMM accreditation. Private medical laboratories services have higher scores in overall measurement indicators OSHMS, compared to government medical laboratories. However, there was no significant difference (p>0.05) between medical laboratories which have ISO 9000 quality management system certification, compared to level of compliance to the OSHMS MS 1722 guideline among medical laboratories. There was also no significant difference (p>0.05) between the laboratories who had been operating for more than 10 years compared to those with less than 10 years, towards implementing the OSHMS. Results showed that majority of medical laboratories management perceived that difficulty and complexities of OSH legislation are the most important factor that prevent them from implementing OSHMS in their organization. The most important supporting factor, that medical laboratories management perceived as the most important to comply to the OSHMS were their moral responsibilities towards the community.
    Conclusion : In conclusion, the study shows there were many inhibiting and supporting factors that contribute towards effective implementation of OSHMS elements in workplace.
  6. Fulltext Major lower limb amputations
    Abdul Kadir AH, Myint Han
    Med J Malaysia, 1988 Sep;43(3):218-23.
    PMID: 3241579
  7. Evaluation of five promoters for use in transformation of oil palm (Elaeis guineensis Jacq.)
    Chowdhury MKU, Parveez GKA, Saleh NM
    Plant Cell Rep, 1997 Feb;16(5):277-281.
    PMID: 30727662 DOI: 10.1007/BF01088280
    The efficiency of GUS (β-Glucuronidase) gene expression in embryogenic callus and young leaflets of mature and seedling palm after microprojectile bombardment with five constructs (pEmuGN, pAHC25, pAct1-F4, pGH24 and pBARGUS) was evaluated to identify the most suitable promoter(s) to use in transformation attempts in oil palm. Expression of the GUS gene driven by theEmu, Ubi1, Act1 35S orAdh1 was assayed, both histochemically and fluorometrically, from a total of 200 plates of tissues in eight independent experiments two days after bombardment. A completely randomized experimental design was used for each experiment, and the data analysed by ANOVA and Duncan's Multiple Range Test. The expression level of GUS driven by theEmu orUbi1 promoters was significantly higher than that of the Act], 35S and Adhl promoters in many experiments, and that of theAdhl was significantly lower than those of the other four promoters. Both histochemical and fluorometric data indicate that in embryogenic callus, the expression of theEmu promoter was higher than that of theUbi1 whereas in young leaflets from mature palm the Ubi1 expression was stronger. The performances of the five promoters were also tested in tobacco callus using a fluorometric GUS assay. The activity of the 35S promoter was highest, and significantly different from that of all the other promoters except theEmu, and that of theAct1 promoter was lowest. These results indicate that either theUbil orEmu promoter should facilitate the expression of desired genes in oil palm and aid in development of an efficient stable transformation system.
  8. Fulltext Kajian audit keselamatan dan kesihatan pekerjaan terhadap aspek fizikal di Kolej Kediaman Dato’ Onn, UKM
    Kadir, A., Kadaruddin, A., Shaharuddin, A., Azahan, A., Muhammad Rizal, R., Lukman, Z.M., et al.
    Malaysian Journal of Community Health, 2011;17(1):9-17.
    MyJurnal
    Background: Safety and health audit study is a part of occupational safety and health risk assesment. Thus, student’s residential audit is important in order tu ensure the safety rules which implemented by the management is appropriate and follow the standard set forth. Furthermore, it also important to determine places, area or situation that might lead to hazard risk so that prevention step could be plan and implement.

    Objective: This study was to determine the safety level of students residential in physical aspects.

    Methods: Safety inspection or audit conducted is in accordance with criteria and indicators listed in the checklists that have been formed based on the audit forms from the Department of Safety and Health (DOSH), National Institute of Safety and health (NIOSH) and the Occupational Safety and Health Committee of UKMs (JKKP). Several indicators are also included in the audit form as to ensure it covers all the technical aspect and suited with the college conditions. The safety level for each of the blocks in KDO is categorized using points and percentage score obtained.

    Results: Based on the overall score, the average safety score in percentage for areas in KDO are preceded by general office with score 85.5% followed by residential blocks with 71.5%, facilities with score 71.2% and administration block with 70.9%. The results of the study show that most of the areas are at least in a safe level.

    Conclusion: Roles of employer and college administration, significant OSH programme and safety audit are important factors as to ensure the safety of student's residential college.
  9. Nanoparticulate assembly of mannuronic acid- and guluronic acid-rich alginate: oral insulin carrier and glucose binder
    Kadir A, Mokhtar MT, Wong TW
    J Pharm Sci, 2013 Dec;102(12):4353-63.
    PMID: 24258282 DOI: 10.1002/jps.23742
    The relationship of high and low molecular weight mannuronic acid (M)- and guluronic acid (G)-rich alginate nanoparticles as oral insulin carrier was elucidated. Nanoparticles were prepared through ionotropic gelation using Ca(2+) , and then in vitro physicochemical attributes and in vivo antidiabetic characteristics were examined. The alginate nanoparticles had insulin release retarded when the matrices had high alginate-to-insulin ratio or strong alginate-insulin interaction via OH moiety. High molecular weight M-rich alginate nanoparticles were characterized by assemblies of long polymer chains that enabled insulin encapsulation with weaker polymer-drug interaction than nanoparticles prepared from other alginate grades. They were able to encapsulate and yet release and have insulin absorbed into systemic circulation, thereby lowering rat blood glucose. High molecular weight G- and low molecular weight M-rich alginate nanoparticles showed remarkable polymer-insulin interaction. This retarded the drug release and negated its absorption. Blood glucose lowering was, however, demonstrated in vivo with insulin-free matrices of these nanoparticles because of the strong alginate-glucose binding that led to intestinal glucose retention. Alginate nanoparticles can be used as oral insulin carrier or glucose binder in the treatment of diabetes as a function of its chemical composition. High molecular weight M-rich alginate nanoparticles are a suitable vehicle for future development into oral insulin carrier.
  10. Fulltext Characteristics of psychiatric admissions and aspects of overcrowding at the general Hospital, Kuala Lumpur
    Chin CN, Kadir AB, Jeyarajah S
    Med J Malaysia, 1993 Jun;48(2):135-45.
    PMID: 8350788
    This study examined admissions, final diagnoses and mean duration of stay of patients in the Psychiatric Wards at the General Hospital, Kuala Lumpur. The male ward was severely overcrowded by 125% over the maximum bed capacity. The majority were psychotic, mainly schizophrenic. The female ward had 76% occupancy, also mainly psychotic. Neurotics, alcohol dependents and personality disorders formed less than 5% of the admissions. There was no difference in the mean duration of stay of patients of both UKM and GHKL Units stratified for diagnosis and disposal except for newly diagnosed schizophrenics. There is an urgent need for more male psychiatric beds/wards.
  11. Fulltext Prevalence of emotional and behavioural problems in Johor Bahru District school children--comparing three geographical areas
    Cheah YC, Kadir AB, Jeyarajah S
    Med J Malaysia, 1997 Jun;52(2):124-33.
    PMID: 10968069
    This is a cross sectional community study in Johor Bahru District. The aim of this study is to estimate the overall prevalence of emotional and behavioural deviance among the school children in three different geographical areas, and to identify their correlates. This paper presents the findings of phase one of a two-stage procedure involving a total of 589 children aged 10-12 years. Using the cut-off point validated locally, the prevalence of deviance on the parental scale was 40% in the rural school, 30.2% in the agricultural resettlement (Felda) school and 32.3% in the urban school. On the teachers' assessment, the prevalence of deviance was 40.8% in the rural school, 10.8% in the Felda School and 8.9% in the urban school. There was significantly higher prevalence of deviance in the rural school on the teachers' scale. In the rural school, significantly higher prevalence of deviance was found among boys.
  12. Development and validation of the knowledge and attitude regarding childhood vaccination (KACV) questionnaire among healthcare workers: the Malay version
    Abdul Kadir A, Noor NM, Mukhtar AF
    Hum Vaccin Immunother, 2021 Oct 29.
    PMID: 34714713 DOI: 10.1080/21645515.2021.1989915
    Health care workers play an important role in supporting childhood vaccination as they are the most trusted source of vaccine-related information for parents. However, there is limited validated tools to measure their knowledge and attitude on childhood vaccination. This study aims to develop and validate knowledge and attitude regarding childhood vaccination (KACV) questionnaire among healthcare workers. The questionnaire was developed based on literature reviews and underwent a sequential validation process, including content, face validity and exploratory factor analysis. However, the attitude section is unidimensional and has undergone reliability analysis only. The preliminary knowledge questionnaire contains 33 items and the attitude questionnaire consists of 17 items. The preliminary KACV showed a high item Content Validity Index and Face Validity Index. The final questionnaire consists of 10 items for knowledge and 15 items for attitude. The Cronbach alpha for the knowledge and attitude section were 0.896 and 0.861, respectively. KACV is a valid and reliable tool to measure healthcare workers' knowledge and attitude on childhood vaccination.
  13. A 10-year systematic review and meta-analysis of determinants of postpartum depression in the Association of Southeast Asian Nations countries
    Sainuddin SS, Norhayati MN, Abdul Kadir A, Zakaria R
    Med J Malaysia, 2023 Sep;78(5):675-686.
    PMID: 37775497
    INTRODUCTION: Postpartum depression (PPD) is a mental and emotional condition that can affect women during their first postnatal year and concern globally. This study aimed to determine the overall prevalence and determinants of postpartum depression (PPD) in Association of Southeast Asian Nations (ASEAN) countries.

    MATERIALS AND METHODS: A systematic search of observational studies conducted in ASEAN countries between 1 January 2010 and 31 December 2020 was performed in the Medline, PubMed and Google Scholar databases. The quality of studies was evaluated based on The Joanna Briggs Institute Checklist. The analysis was performed with Review Manager software version 5.4. Metaanalysis of the estimates from primary studies was conducted by adjusting for possible publication bias and heterogeneity.

    RESULTS: Twenty-five studies including 19924 postnatal mothers were included in this review. The pooled prevalence of PPD is 22.32% (95% CI: 18.48, 26.17). Thailand has the highest prevalence of PPD with a pooled prevalence of 74.1% (95% CI: 64.79, 83.41). The prevalence of PPD was highest when the assessment for PPD was conducted up to 6 weeks postpartum with a pooled prevalence of 25.24% (95% CI: 14.08, 36.41). The identified determinants of PPD were unplanned pregnancy, term pregnancy, lack of family support and physical violence. There were limited studies done and high heterogeneity in terms of quality, methodology, culture, screening method and time of PPD measurement.

    CONCLUSIONS: Approximately one in five postpartum women in ASEAN countries had PPD. The risk factor that lowers the risk of PPD is unplanned and term pregnancies, while women with a lack of family support and experienced physical violence increase the risk of PPD. Robust prevalence studies are needed to assess the magnitude of this problem in ASEAN countries.

  14. Fulltext Depression, anxiety, stress and socio-demographic factors for poor glycaemic control in patients with type II diabetes
    Nini Shuhaida MH, Siti Suhaila MY, Azidah KA, Norhayati NM, Nani D, Juliawati M
    J Taibah Univ Med Sci, 2019 Jun;14(3):268-276.
    PMID: 31435416 DOI: 10.1016/j.jtumed.2019.03.002
    Objective: This study aims to identify risks induced by depression, anxiety, stress, and socio-demographic factors associated with poor glycaemic control among type II diabetes mellitus patients in Kuala Terengganu, Malaysia.
    Methods: This cross-sectional study was performed in two Malaysian health clinics by using the Malay version of a self-administered questionnaire. This instrument contains a diabetes care profile, a 21-item version of the Depression Anxiety Stress Scales (DASS21), and a Malaysian Medication Adherence Score (MalMAS). Simple and multiple logistic regression analyses were performed.
    Results: A total of 338 type II diabetes mellitus patients responded (response rate 93.1%). The proportion of patients with poor glycaemic control was 76.0%. Multiple logistic regression analysis showed that 1) social support scores [Adj. OR (95% CI): 1.06 (1.03,1.10); p = 0.001]; 2) unemployment [Adj. OR (95% CI): 0.46 (0.22,0.95); p = 0.035]; 3) pensioner status [Adj. OR (95% CI): 0.28 (0.13,0.61); p = 0.001]; and 4) perception of diabetes as interfering with daily living activities [Adj. OR (95% CI): 3.18 (1.17,8.70); p = 0.024] were significant factors for poor glycaemic control.
    Conclusions: Unemployment, perception of diabetes' interference with daily living activities, and social support are significantly correlated with poor glycaemic control. Further studies assessing other important clinical and psychosocial factors that may influence glycaemic control are suggested. A younger age range of participants is recommended for better outcomes and interventional implementation of findings.
  15. Blood glucose lowering property of water in oral insulin-fed diabetic rats
    Wong TW, Sumiran N, Mokhtar MT, Kadir A
    Pharm Biol, 2012 Nov;50(11):1463-6.
    PMID: 22889006 DOI: 10.3109/13880209.2012.679985
    In oral insulin delivery, blood glucose profiles of a subject can be a function of complicated transfer of water and insulin between gastrointestinal and blood compartments.
  16. Waste bones ash as an alternative source of P for struvite precipitation
    Darwish M, Aris A, Puteh MH, Jusoh MNH, Abdul Kadir A
    J Environ Manage, 2017 Dec 01;203(Pt 2):861-866.
    PMID: 26935149 DOI: 10.1016/j.jenvman.2016.02.033
    Struvite precipitation has been widely applied for the removal of ammonium-nitrogen (NH4-N) from wastewater. Due to the high cost of phosphorus (P) reagents, the current research trend was directed to find alternative sources of P, in order to maintain a sustainable NH4-N removal process. The current study investigated waste bones ashes as alternative sources of P. Different types of bones' ashes were characterized, in which the ash produced from waste fish bones was the highest in P content (17%wt.). The optimization of the factors affecting P extraction from ash by acidic leaching showed that applying 2M H2SO4 and 1.25 kg H2SO4/kg ash achieved the highest P recovery (95%). Thereafter, the recovered P was successfully used in struvite precipitation, which achieved more than 90% NH4-N removal and high purity struvite.
  17. Fulltext Audit of new long-stay patients in Permai Mental Hospital, Johor
    Cheah YC, Nur Aiza Z, Paramasivam S, Kadir ABA, Jeyarajah S
    Med J Malaysia, 1997 Jun;52(2):139-45.
    PMID: 10968071
    We report a cross-sectional descriptive study of 90 new long-stay patients (NLS) (i.e. those who had been resident for six months to three years in Permai Mental Hospital, Johor) and studied from April to June, 1995. The age of this sample ranged from 18 to 85 years. Two subgroups were observed (i.e. younger NLS patients aged 18 to 34 years and older NLS patients aged 35 to 85 years). Among the younger NLS patients, the commonest diagnosis was schizophrenia (51.2%), followed by mental retardation with related problems (24.4%). Sixty-one percent of these younger patients had a history of serious violence or dangerous behaviour. Older NLS patients were likely to have a diagnosis of schizophrenia (79.6%), followed by mood disorder (6.1%) and dementia (4.1%). Forty seven percent of these older group had history of danger to others and 57.1% were at moderate or severe risk of non-deliberate self-harm. Focusing on the schizophrenic patients, all of them had some form of psychopathology, either positive, negative or general symptoms and about one-fourth were assessed to pose a risk for aggression.
  18. Fulltext Knowledge, attitudes and practice of preconception care among women attending maternal health clinic in Kelantan
    Kasim R, Draman N, Abdul Kadir A, Muhamad R
    Education in Medicine Journal, 2016;8(4):57-68.
    MyJurnal
    Introduction: Pregnancy is common among women in the reproductive age and is associated with several risks. Preconception care has thus been introduced to promote health before conception and to improve pregnancy-related outcomes. The aim of this study was to determine the level of knowledge, attitudes and practices regarding preconception care among women attending antenatal care appointments. Methodology: This was a cross-sectional study conducted from April to December 2012 at Klinik Kesihatan Bachok. A self-administered questionnaire was administered to 135 respondents from 18 to 45 years of age. The questionnaire consisted of four domains, assessing socio-demographic data and knowledge, attitudes and practice of preconception care. Results: The mean (SD) knowledge, attitude and practice scores were 11.37 (3.94), 15.39 (2.12) and 10.13 (2.30), respectively. In total, 98.5% of the respondents had good attitudes, 45.2% had good practices, and 51.9% had good knowledge of preconception care. Conclusion: Women in Bachok have fair knowledge of and good attitude towards preconception care. However, they have poor preconception care practices.
  19. Fulltext Psychometric properties of the malay language version of Knee Injury and Osteoarthritis Outcome Score (KOOS) Questionnaire among knee osteoarthritis patients: a confirmatory factor analysis
    Zulkifli MM, Kadir AA, Elias A, Bea KC, Sadagatullah AN
    Malays Orthop J, 2017 Jul;11(2):7-14.
    PMID: 29021872 MyJurnal DOI: 10.5704/MOJ.1707.003
    Introduction: This study aimed to cross-culturally adapt a Malay version of Knee Injury and Osteoarthritis Outcome Score (KOOS) and to evaluate its psychometric properties in patients with knee osteoarthritis (OA). Materials and Methods: The English version KOOS was translated into a Malay version using forward and backward translation process, followed by face validity and content validity. Two hundred and twenty-six knee OA patients attending the Outpatient and Orthopaedic Clinics, Universiti Sains Malaysia Hospital, completed the Malay version KOOS. Construct validity using confirmatory factor analysis and internal reliability assessment were performed. Results: The results showed that the original five-factor model with 42 items failed to achieve acceptable values of the goodness of fit indices, indicating poor model fit. A new five-factor model of 26 items demonstrated acceptable level of goodness of fit (comparative fit index= 0.929, incremental fit index= 0.930, Tucker Lewis fit index= 0.920, root mean square error of approximation= 0.073 and Chisquared/degree of freedom= 2.183) indices to signify a model fit. The Cronbach's alpha value for the new model ranged from 0.776 to 0.946. The composite reliability values of each construct ranged between 0.819 and 0.921, indicating satisfactory to high level of convergent validity. Conclusion: The five-factor model with 26 items in the Malay version of KOOS questionnaire demonstrated a good degree of goodness of fit and was found to be valid, reliable and simple as an assessment tool for symptoms, pain, activity of daily living, sports and recreational activity and quality of life for Malaysian adults suffering from knee osteoarthritis.

    Study site: Outpatient and orthopedic clinics, Hospital Universiti Sains Malaysia (HUSM)
  20. Effect of co-doping of sodium on the thermoluminescence dosimetry properties of copper-doped zinc lithium borate glass system
    Saidu A, Wagiran H, Saeed MA, Alajerami YSM, Kadir ABA
    Appl Radiat Isot, 2016 Dec;118:375-381.
    PMID: 27894049 DOI: 10.1016/j.apradiso.2016.10.005
    The effect of sodium as a co-dopant on the thermoluminescence (TL) properties of copper-doped zinc lithium borate (ZLB: Cu) subjected to Co-60 gamma radiation is reported in this study. TL intensity is enhanced with the introduction of sodium in ZLB: Cu. The obtained glow curve is simple with a single peak. The annealing procedure and the best heating rate for the proposed thermoluminescent dosimeter (TLD) are established, and the phosphor is reusable. The TL response within the dose range of 0.5-1000Gy is investigated. The results show that the thermal fading behaviour is improved significantly.
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