Displaying publications 1 - 20 of 41 in total

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  1. Cheah, Whye Lian, Tay, Siow Phing, Chai, Shiun Chat, Bong, Cheong Shin, Luqmanul Hakim Baharuddin, Zhuleikha Bainun Jalil Che' Jalil
    MyJurnal
    Dental caries is a major health problem affecting an estimated 90% of school children worldwide. This cross-sectional study aimed to evaluate oral health knowledge, attitude, and practices among secondary school students in Kuching, Sarawak. Data was collected using a pretested questionnaire on 209 randomly selected students from four schools. Results showed no significant differences between the gender and age groups in terms of knowledge level, but significant differences were observed between the schools. The students had positive attitude towards the dental services, but their dental visits were still low due to fear of dental needle and handpieces. Toothbrush and toothpaste were still the most commonly used oral hygiene aids. As compared to parents and friends, dentist was perceived to have more influence on oral hygiene practices among the students. Girls consumed more sweets, snacks and soft drinks than boys. However, girls spent longer time to brush their teeth and brush more frequently. Oral health education should be a life-long practice and incorporated into the school environment with the support of teachers and parents.
  2. Chang CT, Chang KH, Cheah WL
    Asia Pac J Clin Nutr, 2009;18(2):257-64.
    PMID: 19713186
    The objective of this study was to explore the perception of, feelings and attitudes toward overweight or obesity, and the perceived barriers to weight loss among native adults from lower socio-economic background. A total of six gender- and ethnic-specific focus groups consisted of 38 overweight and obese purposefully and criterion selected adults (21 women and 17 men), participated in this study. An unstructured discussion guide based on the study objectives were used for the focus groups. The results showed that some participants perceived themselves as ugly, felt ashamed of their body size and were frustrated because they did not desire to be overweight. Due to their excess weight, most also expressed they were less effective in their work performances. Although some participants had negative attitudes toward themselves because of excess weight, this appeared to link to self-stigmatization rather than anti-obesity discrimination. The participants remained in the Pre-contemplation stage of losing weight probably because of perceived barriers such as difficulty to resist eating, lack of know how and previous failed attempts to lose weight. Importantly, this study provided some evidence that individuals in the Pre-contemplation stage are unable to take action to lose weight, even if effective strategies are suggested.
  3. Cheah WL, Wan Muda WA, Mohd Hussin ZA, Thon CC
    Asia Pac J Public Health, 2012 Mar;24(2):330-42.
    PMID: 20833668 DOI: 10.1177/1010539510380737
    The aim of the study was to identify the factors associated with undernutrition indicators in children 5 years and younger in a rural community in Malaysia. A total of 295 children and their carers were selected from community clinics based on a multistage sampling method. Pretested questionnaire, anthropometric measurement, and dietary assessment were used for data collection. There was 69% stunting, 63.4% underweight, 40% wasting, and 26.8% with mid-upper-arm circumference (MUAC) for age below a z score of -2 among children. In all, 10 factors were found to be associated with different indicators of undernutrition. Age was the only factor that had association with all the undernutrition indicators. Total household income and total expenditure showed significant association with underweight. Birth weight was reported to have significant association with underweight, stunting, and low MUAC-for-age. The findings suggest that the factors of undernutrition were different for different indicators of undernutrition and thus give a more comprehensive picture on factors contributing to acute and chronic malnutrition.
  4. Grace Kho WF, Cheah WL, Hazmi H
    Cent. Eur. J. Public Health, 2018 Mar;26(1):16-21.
    PMID: 29684292 DOI: 10.21101/cejph.a5186
    OBJECTIVES: Hypertension is a health issue affecting adolescents. Accumulating evidence affirms that elevated blood pressure begins in childhood and tracks into adulthood. This cross-sectional study was conducted to determine the prevalence of elevated blood pressure and its predictors among secondary school students in Sarawak, Malaysia.

    METHODS: A total of 2,461 secondary school students aged 12-17 years from 19 schools in Sarawak participated in the study. Questionnaire was used to obtain socio-demographic data, parental history of hypertension, and self-reported physical activity. Anthropometric and blood pressure measurements were taken. Data was entered and analysed using SPSS version 23.0.

    RESULTS: The prevalence of adolescents with elevated blood pressure, overweight, central obesity, and overfat were 30.1%, 24.3%, 13.5%, and 6.7%, respectively. Multivariate logistic regression demonstrated the predictors significantly associated with elevated blood pressure among respondents: overweight (adjusted odds ratio=3.144), being male (adjusted odds ratio=3.073), being Chinese (adjusted odds ratio=2.321) or Iban (adjusted odds ratio=1.578), central obesity (adjusted odds ratio=2.145), being overfat (adjusted odds ratio=1.885), and being an older adolescent (adjusted odds ratio=1.109). Parental history of hypertension, locality, and physical activity showed no significant associations.

    CONCLUSION: The obesity epidemic must be tackled at community and school levels by health education and regulation of school canteen foods.

  5. Cheah WL, Ling NC, Chang KH
    Chin Clin Oncol, 2016 Feb;5(1):7.
    PMID: 26932431 DOI: 10.3978/j.issn.2304-3865.2016.02.01
    This cross-sectional study aimed to determine the prevalence of unmet supportive care needs among prostate cancer patients.
  6. Chai SS, Cheah WL, Goh KL, Chang YHR, Sim KY, Chin KO
    Comput Math Methods Med, 2021;2021:2794888.
    PMID: 34917164 DOI: 10.1155/2021/2794888
    This study outlines and developed a multilayer perceptron (MLP) neural network model for adolescent hypertension classification focusing on the use of simple anthropometric and sociodemographic data collected from a cross-sectional research study in Sarawak, Malaysia. Among the 2,461 data collected, 741 were hypertensive (30.1%) and 1720 were normal (69.9%). During the data gathering process, eleven anthropometric measurements and sociodemographic data were collected. The variable selection procedure in the methodology proposed selected five parameters: weight, weight-to-height ratio (WHtR), age, sex, and ethnicity, as the input of the network model. The developed MLP model with a single hidden layer of 50 hidden neurons managed to achieve a sensitivity of 0.41, specificity of 0.91, precision of 0.65, F-score of 0.50, accuracy of 0.76, and Area Under the Receiver Operating Characteristic (ROC) Curve (AUC) of 0.75 using the imbalanced data set. Analyzing the performance metrics obtained from the training, validation and testing data sets show that the developed network model is well-generalized. Using Bayes' Theorem, an adolescent classified as hypertensive using this created model has a 66.2% likelihood of having hypertension in the Sarawak adolescent population, which has a hypertension prevalence of 30.1%. When the prevalence of hypertension in the Sarawak population was increased to 50%, the developed model could predict an adolescent having hypertension with an 82.0% chance, whereas when the prevalence of hypertension was reduced to 10%, the developed model could only predict true positive hypertension with a 33.6% chance. With the sensitivity of the model increasing to 65% and 90% while retaining a specificity of 91%, the true positivity of an adolescent being hypertension would be 75.7% and 81.2%, respectively, according to Bayes' Theorem. The findings show that simple anthropometric measurements paired with sociodemographic data are feasible to be used to classify hypertension in adolescents using the developed MLP model in Sarawak adolescent population with modest hypertension prevalence. However, a model with higher sensitivity and specificity is required for better positive hypertension predictive value when the prevalence is low. We conclude that the developed classification model could serve as a quick and easy preliminary warning tool for screening high-risk adolescents of developing hypertension.
  7. Cheah, Whye Lian, Helmy Nazmi, Hoo, Jordan Ching Bing, Chew, Jia Ying, Nurul Nazleatul Nadira Mohd Nazif, Siti Nurva'ain Mohd Kamil
    MyJurnal
    Introduction: Peer mentoring is one of the mentoring essential components in any higher institution of learning. In the Medical Faculty of Universiti Malaysia Sarawak (UNIMAS), this mentoring system has existed long but has not undergone any formal evaluation. Objective: The main objective of this study is to determine the perception of peer mentoring among medical students of Faculty of Medicine and Health Sciences (FMHS), UNIMAS. Method: It was a cross-sectional study using self-administered questionnaire. All medical undergraduate students of FMHS were recruited. Data was analyzed using SPSS version 22. Result: A total of 234 respondents participated in this study. Peer mentoring system was preferred against other mentoring system. Majority of the respondents reported that academic gain was the main benefits they gained from peer mentoring system. Negative attitude of the mentee and poor time management for the meeting were the top two worst experience encountered by both mentors and mentees respectively. More than half of the mentor and mentee perceived that peer mentoring system was beneficial to them compared to other systems, with reason that the interaction between student themselves were more easier and comfortable. Nevertheless, there should be more interaction between the mentors and mentees. Conclusion: The findings indicated there is a positive contribution of peer mentoring towards the mentoring system of the faculty. There is a need to relook at the current mentoring system and consider peer mentoring to improve the student support.
  8. Cheah, Whye Lian, Helmy Hazmi, Kiu, Ling Hui, Lee, Sze Ee, Ling, Wei Nii, Wong, Veronica Huey Shin
    MyJurnal
    Introduction: Mentoring medical students is one of the essential responsibilities or missions of a medical school faculty. Objective: This study aimed to determine the perceptions of mentorship and mentoring practices among mentors using a convergent parallel method. Method: Quantitative data was collected by using an adopted validated self- administered questionnaire and analyzed using SPSS version 20. Qualitative data was done using one-to-one interview based on semi structured interview guide and analyzed using thematic analysis. Result: A total of 61 respondents participated in the quantitative survey. Approximately 75% of the respondents had 5 to 10 mentees, with majority rated themselves as satisfactory mentor. More than 60% of them met their mentees at least once every six months. Most respondents were friendly (86.9%) and frank to their mentees (68.9%) and were interested in their mentees’ professional development (95.1%). Phone calling (93.4%) and E-mail (95.1%) were preferred as modes of contact. Mentees were allowed to call their mentors anytime of the day (74.1%). Respondents preferred to counsel their mentees (80.3%) and would refer them for professional help whenever necessary (70.5%). For qualitative data, a total of 5 participants participated with themes emerged: concepts of mentoring, factors contributing to ineffective mentoring and ways to improve mentoring practices. Conclusion: The respondents had positive perceptions regarding their mentorship and practices. A more structured approach with clear mentoring guideline and proper training should be in place.
  9. Cheah Whye Lian, Nan Ommar, Joanne Tan Sze Fern, Surizi Ismail, Tengku Sarah Tengku Mohd Sharifudin, Wong Syn Hwan
    MyJurnal
    Objective: To determine the perception of medical students towards mentor-mentee system in Faculty of Medicine and Health Sciences of UNIMAS. Method: It was a cross-sectional study involving all 104 second year and 80 fifth year medical students. A self-administered questionnaire consisting of socio-demographic details, general perceptions on mentor-mentee system, academic support, personal development, and emotional and psychological support was distributed. The data was analysed using the SPSS version 19. Result: Majority of the subjects had a positive outlook towards the mentor-mentee system with a range of 45.6% to 57%. Three of the top rated perceptions were ‘mentor analyses mentee’s examination results and provides constructive feedback’, ‘mentor advises how to improve academic performance’, and ‘mentor gives encouragement and support for the challenges faced’ (66.8%, 68.0% and 62.9% respectively). Pre-cinical medical students had significantly better perception on mentor-mentee system than clinical students (p≤0.002) while those with non-clinician mentors significantly had better perceptions than those with clinician mentors (p≤0.003) on the system. No significant difference was found between the perceptions of males and females for all components (p=0.234 to 0.722). Conclusion: The mentor-mentee system was found to be successful as more than half of the respondents had posititve perception on the system and its aspects. However, pre-clinical students benefited more compared to clinical students, which reflects the need to look at the support given to clinical students. It was recommended that future studies should incorporate the perceptions of mentors.
  10. Kelak JA, Cheah WL, Safii R
    PMID: 29636778 DOI: 10.1155/2018/4735234
    Nondisclosure of traditional and complementary medicine (T&CM) use may cause individual to be at risk of undue harm. This study aimed to explore patient's experience and views on their decision to disclose the use of T&CM to the doctor. An exploratory qualitative study using in-depth interview involving 10 primary care clinics attendees in Kuching was conducted. The results indicated that disclosure of T&CM use will motivate them to get information, increase doctor's awareness, and get support from family and friends for disclosure. Fear of negative relationship and negative response from doctors was a barrier for disclosure. Doctor's interpersonal and communication skills of being involved, treating patients respectfully, listening attentively, respecting privacy, and taking time for the patient were a critical component for disclosure. Intrapersonal trust regarding doctor influences their satisfaction on healthcare. Women are more open and receptive to a health concern and expressing negative emotions and tend to share problems, whereas men always described themselves as healthy, tended to keep their own personal feeling to themselves, and tended to not share. The doctor should consider gender differences in disclosure, their attitude towards T&CM use, and gained patient's trust in the delivery of healthcare services. Good interpersonal and communication skills must be maintained between doctor and patients.
    Study site: Klinik kesihatan, Kuching, Sarawak, Malaysia
  11. Kelak J, Cheah WL, Razitasham S
    PMID: 28529529 DOI: 10.1155/2017/5146478
    The decision by the patients to disclose traditional and complementary medicine (TCM) use to their doctor is an important area to be explored. This study aimed to determine the disclosure of TCM use and its associated factors to medical doctor among primary care clinic attendees in Kuching Division, Sarawak. It was a cross-sectional study using questionnaire, interviewer administered questionnaire. A total of 1130 patients were screened with 80.2% reporting using TCM. Logistic regression analysis revealed that being female (AOR = 3.219, 95% CI: 1.385, 7.481), perceived benefits that TCM can prevent complication of illness (AOR = 3.999, 95% CI: 1.850, 8.644) and that TCM is more gentle and safer (AOR = 4.537, 95% CI: 2.332, 8.828), perceived barriers of not having enough knowledge about TCM (AOR = 0.530, 95% CI: 0.309, 0.910), patient dissatisfaction towards healthcare providers being too business-like and impersonal (AOR = 0.365, 95% CI: 0.199, 0.669) and paying more for healthcare than one can afford (AOR = 0.413, 95% CI: 0.250, 0.680), and accessibility of doctors (AOR = 3.971, 95% CI: 2.245, 7.023) are the predictors of disclosure of TCM use. An open communication between patients and doctor is important to ensure safe implementation and integration of both TCM and medical treatment.
    Study site: Klinik kesihatan, Kuching, Sarawak, Malaysia
  12. Cheah WL, Law LS, Teh KH, Kam SL, Voon GEH, Lim HY, et al.
    Health Sci Rep, 2021 Sep;4(3):e362.
    PMID: 34466663 DOI: 10.1002/hsr2.362
    Background and Aims: This study aimed to examine the quality of life (QoL) and health satisfaction of undergraduate university students in Sarawak during MCO and its association with socio-demographic profiles.

    Methods: In this cross-sectional study, QoL and satisfaction of health of 503 undergraduate university students (63.4% females) from a public university was assessed online using the World Health Organization QoL (WHOQOL)-BREF instrument.

    Results: The overall QoL and satisfaction with health were 3.7 ± 0.87 and 3.9 ± 0.82, respectively. Male students showed significantly lower mean scores for the environmental domains than female students (63.37 ± 16.21 vs 68.10 ± 14.00, P 

  13. Fong EJ, Cheah WL
    Int J Breast Cancer, 2016;2016:7297813.
    PMID: 27239346 DOI: 10.1155/2016/7297813
    Background. Recognizing the needs of cancer survivors is one of the important aspects in healthcare delivery. This study aimed to determine the prevalence of unmet supportive care needs and its associated factors among the breast cancer survivors of community-based support group in Kuching, Sarawak. Materials and Methods. This was a cross-sectional study using Supportive Care Needs Survey (SCNS-SF34). All the members of community-based breast cancer support groups in Kuching were invited. A total of 101 respondents were face-to-face interviewed after the consent was obtained. Data was entered and analyzed using SPSS version 20. Results. The respondents endorsed health system and information domain with the highest mean score (2.48; 95% CI: 2.32-2.64). Top 10 items with "moderate to high" level unmet needs had a prevalence of 14.9% to 34.7% of respondents indicating need. Significantly higher level of unmet needs was associated with survivors who were younger (less than 60 years old), had higher education attainment, were unemployed, had survival duration of up to 5 years, and were undergoing active treatment. Conclusion. Systematic delivery of health information which is targeted, culturally sensitive, and linguistically appropriate for addressing younger age, education level, employment status, length of survivorship, and treatment stage should be considered not only at hospital-based setting but also at the community-based support groups.
  14. Noor Hafizah Y, Ang LC, Yap F, Nurul Najwa W, Cheah WL, Ruzita AT, et al.
    PMID: 31783477 DOI: 10.3390/ijerph16234722
    As there are few food frequency questionnaires (FFQ) to assess the dietary intake of preschool children, this study examined the validity and reliability of an FFQ for this purpose. A total of 210 preschoolers aged 4 to 6 years participated in the validation study, while a subsample of 66 participants joined the reliability study. The FFQ is modified from the ToyBox-study and South East Asian Nutrition Surveys (SEANUTS), and comprised 108 food items from 13 food groups. A three-day estimated dietary record (3DR) was used as reference and reliability was assessed through a second administration of the FFQ (FFQ2), four weeks after the first administration (FFQ1). For the validation study, Spearman's correlation coefficients showed moderate to high correlations (p < 0.001) between FFQ and 3DR. Cross-classification of quartile analysis showed moderate agreement between the two methods. As for reliability, Spearman's correlation coefficients showed moderate to high correlations (p < 0.001) between FFQ1 and FFQ2. Cronbach's alpha values (0.708 to 0.824) and intraclass correlation coefficients (0.710 to 0.826) showed good agreement between repeated FFQs. The results suggest that the FFQ has acceptable validity and good reliability. Hence, the FFQ can be used to assess preschool children's food intake.
  15. Reeves S, Poh BK, Chong YT, Lee JAC, Cheah WL, Hafizah YN, et al.
    Int J Environ Res Public Health, 2023 Aug 20;20(16).
    PMID: 37623197 DOI: 10.3390/ijerph20166614
    Prevention and treatment of childhood obesity is a global concern, and in Malaysia, it is considered a national public health priority. Determinants of childhood obesity are multifactorial and include factors that directly and indirectly influence energy balance-related behaviours, including energy intake and energy expenditure. Interventions to address childhood obesity that have multiple components at different levels have been shown to be the most influential. The ToyBox-study is a childhood obesity intervention aimed at preschool-aged children and their families that had been shown to be effective in several European countries and so was chosen for adaption for the Malaysian setting. Materials were translated and adjusted for the Malaysian context and audience and implemented in kindergartens in Peninsular Malaysia and Sarawak. However, during the COVID-19 pandemic and lockdown, teaching transitioned to being online. This brought an opportunity to reach a wider audience and consider the long-term sustainability of the intervention, and thus eToybox was born. eToybox aims to bring support for healthy energy balance behaviours directly to the teachers, into kindergartens and homes, to encourage families to be active and eat healthily, and prevent or reduce obesity. Through online innovation, the Toybox Study Malaysia programme has been expanded to enhance its potential to impact the promotion of healthy lifestyles among preschoolers and their families, highlighting the importance of a holistic approach to preventing and treating childhood obesity in Malaysia.
  16. Cheah WL, Chang CT, Hazmi H, Kho GWF
    Int J Hypertens, 2018;2018:6736251.
    PMID: 30155286 DOI: 10.1155/2018/6736251
    This cross-sectional study was conducted to determine the predictive power of anthropometric indicators and recommend cutoff points to discriminate hypertension among adolescents in Sarawak, Malaysia. A total of 2461 respondents aged 12-17 years participated in this study with mean age of 14.5±1.50 years. All anthropometric indicators had significant area under the ROC curve, with body mass index (BMI) and waist circumference (WC) ranging from 0.7 to 0.8. The best anthropometric indicators for predicting hypertension for boys were WC, BMI, and waist-to-height ratio (WHtR). For girls, BMI was the best indicators followed by WHtR and WC. The recommended BMI cutoff point for boys was 20 kg/m2 and 20.7 kg/m2 for girls. For WC, the recommended cutoff point was 67.1 cm for boys and 68.2 cm for girls. BMI and WC indicators were recommended to be used at the school setting where the measurement can easily be conducted.
  17. Awang H, Low WY, Tong WT, Tan LY, Cheah WL, Benedict Lasimbang H, et al.
    J Biosoc Sci, 2019 03;51(2):282-291.
    PMID: 29978769 DOI: 10.1017/S0021932018000214
    The aim of this study was to assess the knowledge of East Malaysian adolescents on sexual and reproductive health issues. Data were collected in March-July 2015 from 2858 adolescents aged 13-18 years from selected East Malaysian secondary schools using a self-administered questionnaire. Twelve items relating to sexual and reproductive health were used to measure respondents' knowledge based on their responses 'True', 'False' or 'Don't know', with the proportion of correct answers being the variable of interest. Cronbach's alpha for the twelve items was 0.761 and the mean knowledge score was 6.8. While the majority of the respondents knew that a woman can get pregnant if she has sex with a man and that HIV and AIDS can be transmitted through sexual intercourse, knowledge about Malaysia's abortion laws, that a woman can get pregnant if she has sex only once and that people with sexually transmitted infections may look healthy was poor. Older respondents and those from urban schools reported significantly higher knowledge than younger respondents and those from rural schools, respectively. More emphasis should be given in schools to the specific topics for which low levels of sexual and reproductive health knowledge were found, with greater attention being given to younger adolescents and those in rural areas.
  18. Gunggu A, Chang CT, Cheah WL
    J Diabetes Res, 2016;2016:9158943.
    PMID: 27563681 DOI: 10.1155/2016/9158943
    Diabetes mellitus is a public health concern in Malaysia. Treatment of diabetes is costly and can lead to complications if disease is poorly controlled. Diabetes self-management (DSM) is found to be essential for optimal glycemic control. This cross-sectional study was conducted among samples from four randomly selected diabetes clinics in Sarawak, Malaysia. The aim was to determine the predictors for DSM. Face-to-face interview using questionnaire was used to collect data. Four hundred respondents with type 2 diabetes mellitus (T2DM) were recruited. Majority of the respondents were Sarawak Bumiputra (Iban and Bidayuh, 48.6%) and female (68.6%). The mean age was 58.77 years (SD = 11.46) and approximately half of the respondents (50.6%) had T2DM for six years (SD = 4.46). The mean fasting blood glucose (FBG) was 8.06 mmol/L (SD = 2.94), with majority (76.1%) having the level higher than 6.1 mmol/L. Multiple logistic regression tests showed significant linear relationship between DSM and belief in treatment effectiveness (p = 0.001), family support (p = 0.007), and self-efficacy (p = 0.027). Health care personnel must convince patients with T2DM of the effectiveness of the treatment, empower and enhance their self-efficacy, and enlist the family support so as to ensure patients sustain their DSM efforts.
    Study site: diabetes clinics in Kuching and Samarahan Division of Sarawak, Malaysia
  19. Chung MH, Hazmi H, Cheah WL
    J Environ Public Health, 2017;2017:9610928.
    PMID: 28286530 DOI: 10.1155/2017/9610928
    The objective of this study was to assess the role performance among KOSPEN community health volunteer in Kuching district and its associated factors. This was a cross-sectional study, conducted in 21 localities in Kuching with a total of 210 respondents. Data were collected using validated interviewer-administered questionnaires and analyzed using SPSS version 22.0. The respondents comprised 55.2% females, 81.9% married, and 41.4% aged above 45 and above and 72.4% completed their education up to secondary school. The result revealed that 59.0% of the respondents agreed and understood their role performances. Multiple Logistics analysis revealed that factors associated with role performance were age group (p = 0.003), education level (p < 0.001), marital status (p = 0.025), prestige and respect (p = 0.012), being seen as "doctor" in community (p = 0.003), job aids (p = 0.009), training location (p = 0.001), and supervision by community (p < 0.001). To increase and maintain the work performance of CHVs, commitment from the government, policy makers, stakeholders, and the communities is required.
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