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Associations of diabetes mellitus and ethnicity with mortality in a multiethnic Asian population: data from the 1992 Singapore National Health Survey

Ma S, Cutter J, Tan CE, Chew SK, Tai ES

Am J Epidemiol, 2003 Sep 15;158(6):543-52.
PMID: 12965880 DOI: 10.1093/aje/kwg199

Despite the high prevalence of diabetes mellitus, little is known about mortality associated with diabetes in Asia. Therefore, the authors followed 3,492 Chinese, Malay, and Asian Indian adults randomly selected from the general population in Singapore. Data on glucose tolerance, demographic characteristics, and other cardiovascular disease risk factors (lipid profile, blood pressure, smoking status, alcohol consumption, and obesity) were obtained in 1992. Vital status was determined as of December 31, 2001. There were 108 deaths over a period of 9 years. Impaired fasting glycemia or impaired glucose tolerance (IFG/IGT) (hazard ratio (HR)=1.39, 95% confidence interval (CI): 0.84, 2.31) and diabetes mellitus (HR=2.49, 95% CI: 1.58, 3.94) were associated with increased mortality after adjustment for age, gender, ethnic group, and educational level. Compared with Chinese with diabetes, Indians with diabetes experienced significantly greater mortality (HR=3.86, 95% CI: 1.76, 8.44) after adjustment for gender, age, educational level, smoking, hypertension, alcohol intake, and obesity. Undiagnosed diabetes and IFG/IGT were more common than known diabetes and also were associated with increased mortality. For reduction of mortality associated with IFG/IGT and diabetes, the authors recommend a screening program to detect undiagnosed diabetes and IFG/IGT along with aggressive treatment of diabetes after diagnosis.
Fulltext Development and user evaluation of an online caregiver education resource for Malaysian parents of children with leukemia or lymphoma

Tan CE, Admodisastro N, Lau SCD, Tan KA, Teh KH, Lee CC, et al.

Asia Pac J Oncol Nurs, 2024 Feb;11(2):100363.
PMID: 38304227 DOI: 10.1016/j.apjon.2023.100363

OBJECTIVE: Malaysian parents of children diagnosed with leukemia or lymphoma stand to benefit from a comprehensive Malay-language online resource, complementing existing caregiver education practices. This study aimed to develop and assess the efficacy of e-Hematological Oncology Parents Education (e-HOPE), an online caregiver education resource in Malay, designed to enhance the knowledge of parents with children diagnosed with leukemia or lymphoma in Malaysia.
METHODS: A user profile and topic list were established based on previous needs analysis studies. Content was developed for each identified topic. An expert panel assessed the content validity of both informational content and activity sections. Subsequently, the contents were presented via a learning management system to parents of children newly diagnosed with leukemia or lymphoma. Parents evaluated the quality of e-HOPE using the Website Evaluation Questionnaire (WEQ) after an 8-week period.
RESULTS: The scale content validity index (S-CVI/Ave) achieved 0.996 for informational content and 0.991 for the activity section. Sixteen parents provided evaluations of e-HOPE after an 8-week usage period. Mean WEQ scores for various dimensions ranged from 4.23 for completeness to 4.88 for relevance.
CONCLUSIONS: E-HOPE was meticulously designed and developed to offer Malaysian parents a Malay-language resource complementing current caregiver education practices. It exhibited strong content validity and received positive user ratings for quality. Further assessment is warranted to evaluate its effectiveness in supporting parents of children with leukemia or lymphoma. The resource is anticipated to enhance information accessibility and support for Malaysian parents facing hematological cancers in their children.
TRIAL REGISTRATION: Clinicaltrials.govNCT05455268.
APOE polymorphism and lipid profile in three ethnic groups in the Singapore population

Tan CE, Tai ES, Tan CS, Chia KS, Lee J, Chew SK, et al.

Atherosclerosis, 2003 Oct;170(2):253-60.
PMID: 14612205

BACKGROUND: Serum lipid concentrations are modulated by environmental factors such as exercise, alcohol intake, smoking, obesity and dietary intake and genetic factors. Polymorphisms at the Apolipoprotein E (APOE) locus have consistently shown a significant association with total and LDL-cholesterol (LDL-C). However, their impact on HDL-cholesterol (HDL-C) may be population dependent. Having three major ethnic groups within a similar social environment allows us to study the role of genetics and their interactions with lifestyle factors on the serum lipid profile and coronary risk in Asians.
METHODS: This study included 1740 males (1146 Chinese, 327 Malays and 267 Asian Indians) and 1950 females (1329 Chinese, 360 Malays and 261 Asian Indians) with complete data on anthropometric indices, fasting lipids, smoking status, alcohol consumption, exercise frequency and genotype at the APOE locus.
RESULTS: Malays and Asian Indians were more obese compared with the Chinese. Smoking was uncommon in all females but Malay males had significantly higher prevalence of smokers. Malays had the highest LDL-C whilst Indians had the lowest HDL-C, The epsilon 3 allele was the most frequent allele in all three ethnic groups. Malays had the highest frequency of epsilon 4 (0.180 and 0.152) compared with Chinese (0.085 and 0.087) and Indians (0.108 and 0.075) in males and females, respectively. The epsilon 2 allele was the least common in Asian Indians. Total cholesterol (TC) and LDL-C was highest in epsilon 4 carriers and lowest in epsilon 2 carriers. The reverse was seen in HDL-C with the highest levels seen in epsilon 2 subjects. The association between ethnic group and HDL-C differed according to APOE genotype and gender. Asian Indians had the lowest HDL-C for each APOE genotype except in Asian Indian males with epsilon 2, where HDL-C concentrations were intermediate between Chinese and Malays.
CONCLUSION: Ethnic differences in lipid profile could be explained in part by the higher prevalence of epsilon 4 in the Malays. Ethnicity may influence the association between APOE genotypes and HDL-C. APOE genotype showed no correlation with HDL-C in Malay males whereas the association in Asian Indians was particularly marked. Further studies of interactions between genes and environmental factors will contribute to the understanding of differences of coronary risk amongst ethnic groups.
Diabetes mellitus abolishes ethnic differences in cardiovascular risk factors: lessons from a multi-ethnic population

Tan CE, Emmanuel SC, Tan BY, Tai ES, Chew SK

Atherosclerosis, 2001 Mar;155(1):179-86.
PMID: 11223440 DOI: 10.1016/s0021-9150(00)00534-7

AIMS: To compare cardiovascular risk factors in diabetic subjects of different ethnic groups, and between new and known diabetic subjects, in the Singapore National Health Survey '92.

METHODS: Disproportionate stratified sampling followed by systematic sampling were used in 3568 (total) respondents of whom 2743 were non-diabetics, 179 newly diagnosed diabetics and 150 known diabetics. Amongst the diabetics, there were 185 Chinese, 66 Malays and 78 Asian Indians. Diagnosis of diabetes mellitus (DM) was based on the 2 h glucose alone, after a 75 g oral glucose tolerance test. Blood pressure (BP), lipid profile, glucose, insulin and anthropometric indices were obtained from all subjects.

RESULTS: Subjects with diabetes (new and known) exhibited significantly higher triglyceride (TG), lower high density lipoprotein cholesterol (HDL-C) and low density lipoprotein (LDL)/apolipoprotein B (apo B) ratio (LDL size) compared with normoglycaemic subjects. They were more obese (generalised and central) and had higher systolic and diastolic BP. There was no difference in lipid risk factors between the two groups with diabetes although those with new diabetes were more obese whilst those with known diabetes had higher fasting glucose. Amongst subjects with diabetes, there were no significant differences between ethnic groups in TG, HDL-C, LDL/apo B ratio, or waist to hip ratio (WHR). Female Malays with diabetes had higher total cholesterol and were more obese whilst male Asian Indians with diabetes had higher fasting insulin.

CONCLUSION: Asian Indians had lower HDL-C and LDL/apo B ratio than Chinese or Malays amongst normoglycaemic subjects. However, these differences between ethnic groups were not seen in subjects with DM.
Fulltext Traditional and Complementary Medicine Use During Postpartum Period: A Cross-Sectional Analysis at a Rural, Public Maternal and Child Health Clinic in West Malaysia

Ridzuan MH, Ali MF, Tan CE, Abdul Aziz AF

Cureus, 2021 Jun;13(6):e15410.
PMID: 34249557 DOI: 10.7759/cureus.15410

Background and objective Despite the widespread use of traditional and complementary medicine (TCM) during pregnancy, very few studies have focused on the use of these practices during the postpartum period among women in Malaysia. This study aimed to evaluate users' profiles and factors associated with the use of TCM during the postpartum period among women attending a community clinic in rural Malaysia. Materials and methods A cross-sectional study was conducted among 210 women at a maternal and child health clinic in Bagan Serai, Perak, Malaysia from January to April 2019. A self-administered questionnaire was used to determine the prevalence, the different types, and reasons for the use of TCM and perceptions toward TCM. Factors associated with TCM use during the postpartum period were derived from multiple logistic regression analyses. Results The prevalence of TCM use during the postpartum period was 66.2% among the subjects. The most common type of TCM used was massage (88.3%), and the most common reason reported was to improve general well-being (72.1%). "Family belief" had the highest mean for influence toward TCM use (mean: 3.63). Malays (adj. OR: 4.52, 95% CI: 1.93-10.59, p=0.001) and those having a low monthly household income (adj. OR: 3.68, 95% CI: 1.24-10.91, p=0.019) were the groups that were more likely to use TCM. Conclusion TCM use during the postpartum period is highly prevalent among Malay women with low household monthly incomes. Further studies should be conducted to address the benefits and risks of using TCM during the postpartum period.
Fulltext Caregiving Self-efficacy and Knowledge Regarding Patient Positioning Among Malaysian Caregivers of Stroke Patients

Tan CE, Hi MY, Azmi NS, Ishak NK, Mohd Farid FA, Abdul Aziz AF

Cureus, 2020 Mar 24;12(3):e7390.
PMID: 32337117 DOI: 10.7759/cureus.7390

Background Most family caregivers of stroke patients in Malaysia do not receive adequate prior preparation or training. This study aimed to determine levels of patient positioning knowledge and caregiving self-efficacy among caregivers of stroke patients. Methods This cross-sectional study was conducted at an urban teaching hospital involving 128 caregivers of stroke patients. The caregivers were conveniently sampled and completed the data collection forms, which comprised their socio-demographic data, patients' functional status, the Caregiving Knowledge For Stroke Questionnaire: Patient Positioning (CKQ-My© Patient Positioning) to measure caregiver's knowledge on patient positioning, and the Family Caregiver Activation Tool (FCAT©) to measure caregivers' self-efficacy in managing the patient. Descriptive and multivariate inferential statistics were used for data analysis. Results Among the caregivers sampled, 87.3% had poor knowledge of positioning (mean score 14.9 ± 4.32). The mean score for FCAT was 49.7 ± 6.0 from a scale of 10 to 60. There was no significant association between knowledge on positioning and self-efficacy. Multiple linear regression showed that caregivers' age (B = 0.146, p = 0.003) and caregiver training (B = 3.302, p = 0.007) were independently associated with caregivers' self-efficacy. Conclusion Caregivers' knowledge on the positioning of stroke patients was poor, despite a fairly good level of self-efficacy. Older caregivers and receiving caregiver training were independently associated with better caregiver self-efficacy. This supports the provision of caregiver training to improve caregiver self-efficacy.
Fulltext Development and Validation of a Caregiving Knowledge Questionnaire for Parents of Pediatric Leukemia and Lymphoma Patients in Malaysia

Tan CE, Lau SCD, Tan KA, Latiff ZA, Teh KH, Lee CC, et al.

Cureus, 2022 Oct;14(10):e30903.
PMID: 36465778 DOI: 10.7759/cureus.30903

Introduction Validated tools to measure caregiving knowledge among parents of children with hematological cancers are needed to measure the clinical outcome of caregiver interventions. This study reports the development and validation of the Hematological Oncology Parents Education Caregiving Knowledge Questionnaire (HOPE-CKQ) among Malaysian parents of pediatric leukemia and lymphoma patients. Methods Initially, 60 items on caregiving knowledge were developed based on a qualitative needs assessment study. Content validity was evaluated using item content validity index (I-CVI) and scale content validity index (S-CVI/Ave). Parents of pediatric leukemia and lymphoma patients were invited to complete the 60-item version of the HOPE-CKQ. Exploratory factor analysis (EFA) using polychoric correlation resulted in an 18-item version of HOPE-CKQ. Confirmatory factor analysis (CFA) was used to verify the factor structure. Known-group validity was tested by comparing the scores among different levels of parent education. Results The I-CVI ranged from 0.83 to 1.00 whereas the S-CVI/Ave was 0.99, indicating good content validity. A total of 167 complete responses were analyzed for factor analysis. EFA using polychoric correlations resulted in a single-factor structure consisting of 18 items. CFA confirmed that the 18-item single-factor HOPE-CKQ model had a good fit for the data. The internal consistency reliability was good (α=0.80). Parents with tertiary education level had higher caregiving knowledge (M=12.61, SD=3.37) compared to parents with secondary education and below (M=10.33, SD=3.80) (t=3.58, p<0.001). Conclusions The 18-item HOPE-CKQ is valid and reliable for use to measure caregiving knowledge among pediatric leukemia and lymphoma parents. This tool may be considered to measure caregiving knowledge in future preventive and intervention programs.
Prevalence of diabetes and ethnic differences in cardiovascular risk factors. The 1992 Singapore National Health Survey

Tan CE, Emmanuel SC, Tan BY, Jacob E

Diabetes Care, 1999 Feb;22(2):241-7.
PMID: 10333940 DOI: 10.2337/diacare.22.2.241

OBJECTIVE: The purpose of the 1992 Singapore National Health Survey was to determine the current distribution of major noncommunicable diseases and their risk factors, including the prevalence of diabetes and dyslipidemia, in Singapore.

RESEARCH DESIGN AND METHODS: A combination of disproportionate stratified sampling and systematic sampling were used to select the sample for the survey. The final number of respondents was 3,568, giving a response rate of 72.6%. All subjects fasted for 10 h and were given a 75-g glucose load, except those known to have diabetes. Blood was taken before and 2 h after the glucose load. Diagnosis of diabetes was based on 2-h glucose alone.

RESULTS: The age-standardized prevalence of diabetes in Singapore residents aged 18-69 years was 8.4%, with more than half (58.5%) previously undiagnosed. Prevalence of diabetes was high across all three ethnic groups. The prevalence of impaired glucose tolerance was 16.1%, that of hypertension was 6.5%, and 19.0% were regular smokers. The total cholesterol (mean +/- SD) of nondiabetic Singaporeans was 5.18 +/- 1.02 mmol/l; 47.9% had cholesterol > 5.2 mmol/l, while 15.4% had levels > 6.3 mmol/l. Mean LDL cholesterol was 3.31 +/- 0.89 mmol/l; HDL cholesterol was 1.30 +/- 0.32 mmol/l, and triglyceride was 1.23 +/- 0.82 mmol/l.

CONCLUSIONS: Prevalence of diabetes was high across all three ethnic groups. Ethnic differences in prevalence of diabetes, insulin resistance, central obesity, hypertension, smoking, and lipid profile could explain the differential coronary heart disease rates in the three major ethnic groups in Singapore.
The metabolic syndrome in Chinese, Malays and Asian Indians. Factor analysis of data from the 1998 Singapore National Health Survey

Ang LW, Ma S, Cutter J, Chew SK, Tan CE, Tai ES

Diabetes Res Clin Pract, 2005 Jan;67(1):53-62.
PMID: 15620434 DOI: 10.1016/j.diabres.2004.05.003

We used factor analysis to define and compare the manner in which the various features of the metabolic syndrome are linked or clustered in Chinese, Malays and Asian Indians. One thousand nine hundred and fifty seven men (1324 Chinese, 391 Malays and 261 Asian Indians) and 2308 women (1622 Chinese, 391 Malays and 296 Asian Indians) were examined. Anthropometry, blood pressure, serum glucose, lipid concentrations, and serum insulin were measured for all subjects. These data were then subjected to factor analysis which reduced the variables examined to three factors in all ethnic groups and both genders. The first (dyslipidemia) factor was positively loaded for obesity, insulin resistance (IR), fasting triglyceride and negatively loaded for HDL-cholesterol. The second (hyperglycemia) factor was positively loaded for IR and blood glucose. The third (hypertension) factor was positively loaded for obesity and blood pressure. IR was positively loaded in the hypertension factor in Malay women but not in others. Rather than a single entity causally associated with insulin resistance (IR), our findings support a concept in which the metabolic syndrome represents several distinct entities (dyslipidemia, hypertension and hyperglycemia). It appears that Malay females may be more prone to develop hypertension in association with IR.
Homeostasis model assessment in a population with mixed ethnicity: the 1992 Singapore National Health Survey

Tai ES, Lim SC, Chew SK, Tan BY, Tan CE

Diabetes Res Clin Pract, 2000 Aug;49(2-3):159-68.
PMID: 10963828 DOI: 10.1016/s0168-8227(00)00152-2

We studied insulin resistance and beta-cell function with reference to ethnic group, glucose tolerance and other coronary artery disease risk factors in a cross section of the Singapore population which comprises Chinese, Malays and Asian Indians. 3568 individuals aged 18-69 were examined. Blood pressure, anthropometric data, blood lipids, glucose and insulin were assayed in the fasting state. Glucose and serum insulin were measured 2 h after an oral glucose challenge. Insulin resistance and beta-cell function were calculated using homeostasis model assessment. Asian Indians had higher insulin resistance than Chinese or Malays. Impaired glucose tolerance (IGT) and diabetes mellitus (DM) were associated with greater insulin resistance and impaired beta-cell function compared to normal glucose tolerance (NGT). Insulin resistance was positively correlated with blood pressure in women and total cholesterol, LDL cholesterol and triglyceride in both men and women. It was negatively correlated with HDL cholesterol and LDL/apolipoprotein B ratio. beta-cell function showed no significant correlations with the cardiovascular risk factors studied. It appears that both impaired beta-cell function and insulin resistance are important for the development of hyperglycemia whereas insulin resistance alone seems more important in the development of coronary artery disease as it correlates with several known coronary artery disease risk factors.
Fulltext Patients' perceptions of participation in educational home visits

Jaffar A, Tan CE, Hamzah Z, Mohd Hashim S, Mohd Tohit N

Educ Health (Abingdon), 2016;29(1):63-4.
PMID: 26996805 DOI: 10.4103/1357-6283.178930
Fulltext COVID-19 and Hemoglobinopathies: A Systematic Review of Clinical Presentations, Investigations, and Outcomes

Lee JX, Chieng WK, Lau SCD, Tan CE

Front Med (Lausanne), 2021;8:757510.
PMID: 34722593 DOI: 10.3389/fmed.2021.757510

This systematic review aimed to provide an overview of the clinical profile and outcome of COVID-19 infection in patients with hemoglobinopathy. The rate of COVID-19 mortality and its predictors were also identified. A systematic search was conducted in accordance with PRISMA guidelines in five electronic databases (PubMed, Scopus, Web of Science, Embase, WHO COVID-19 database) for articles published between 1st December 2019 to 31st October 2020. All articles with laboratory-confirmed COVID-19 cases with underlying hemoglobinopathy were included. Methodological quality was assessed using the Joanna Briggs Institute (JBI) critical appraisal checklists. Thirty-one articles with data on 246 patients with hemoglobinopathy were included in this review. In general, clinical manifestations of COVID-19 infection among patients with hemoglobinopathy were similar to the general population. Vaso-occlusive crisis occurred in 55.6% of sickle cell disease patients with COVID-19 infection. Mortality from COVID-19 infection among patients with hemoglobinopathy was 6.9%. After adjusting for age, gender, types of hemoglobinopathy and oxygen supplementation, respiratory (adj OR = 89.63, 95% CI 2.514-3195.537, p = 0.014) and cardiovascular (adj OR = 35.20, 95% CI 1.291-959.526, p = 0.035) comorbidities were significant predictors of mortality. Patients with hemoglobinopathy had a higher mortality rate from COVID-19 infection compared to the general population. Those with coexisting cardiovascular or respiratory comorbidities require closer monitoring during the course of illness. More data are needed to allow a better understanding on the clinical impact of COVID-19 infections among patients with hemoglobinopathy. Clinical Trial Registration: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42020218200.
Fulltext Development and Validation of Adherence Score for Subcutaneous Biologic Disease-Modifying Antirheumatic Drugs

Abdul Razak S, Makmor Bakry M, Mohamed Said MS, Tan CE, Md Redzuan A

Front Pharmacol, 2020;11:572260.
PMID: 33240088 DOI: 10.3389/fphar.2020.572260

Background: The biologic disease-modifying antirheumatic drugs (bDMARDs) are currently incorporated as part of the pharmacotherapy management of inflammatory arthritis (IA). Adherence to bDMARDs is crucial to ensure treatment success in IA. However, most of the recent studies evaluated adherence level in patients using subcutaneous injections of bDMARDs utilized the indirect methods adapted from adherence assessment for oral medication. Aim: This study aimed to develop a questionnaire to assess adherence to the self-injectable subcutaneous bDMARDs. Methods: The development of the Subcutaneous bDMARDs Adherence Score (SCADS) involved evaluation of content validity. Literature reviews provide the basis for domain identification and item formation. Four experts evaluated the instrument by using a four-point ordinal scale with a rubric scoring on relevance, importance, and clarity of each item in measuring the overarching construct. The item-level content validity index (I-CVI) and the scale-level content validity index (S-CVI) were calculated. The factor structure and internal consistency reliability of SCADS were estimated using principal component analysis (PCA) and Cronbach's alpha, respectively. Results: Both S-CVI/UA (universal agreement) and the average item-level content validity index (S-CVI/Ave) (average) for the entire instrument showed excellent criteria with a value of >0.90. Cronbach's alpha coefficient value for SCADS was 0.707 indicating good internal consistency. All items showed corrected item-total correlation coefficients above 0.244. Questionnaire items with a factor loading of 0.30 or above were considered in the final factor solution. The factor analysis resulted in 3-factor solutions, which corresponded to 66.62% of the total variance. Conclusion: The SCADS is a consistent and reliable instrument for evaluating adherence among IA patients using the subcutaneous bDMARDs. It is simple to use, yet comprehensive but still requiring further clinical and international validation.
Fulltext The adaptation and validation of the satisfaction with stroke care questionnaire (Homesat) (SASC10-My™) for use in public primary healthcare facilities caring for long- term stroke survivors residing at home in the community

Abdul Aziz AF, Tan CE, Ali MF, Aljunid SM

Health Qual Life Outcomes, 2020 Jun 20;18(1):193.
PMID: 32563246 DOI: 10.1186/s12955-020-01450-9

BACKGROUND: Satisfaction with post stroke services would assist stakeholders in addressing gaps in service delivery. Tools used to evaluate satisfaction with stroke care services need to be validated to match healthcare services provided in each country. Studies on satisfaction with post discharge stroke care delivery in low- and middle-income countries (LMIC) are scarce, despite knowledge that post stroke care delivery is fragmented and poorly coordinated. This study aims to modify and validate the HomeSat subscale of the Dutch Satisfaction with Stroke Care-19 (SASC-19) questionnaire for use in Malaysia and in countries with similar public healthcare services in the region.
METHODS: The HomeSat subscale of the Dutch SASC-19 questionnaire (11 items) underwent back-to-back translation to produce a Malay language version. Content validation was done by Family Medicine Specialists involved in community post-stroke care. Community social support services in the original questionnaire were substituted with equivalent local services to ensure contextual relevance. Internal consistency reliability was determined using Cronbach alpha. Exploratory factor analysis was done to validate the factor structure of the Malay version of the questionnaire (SASC10-My™). The SASC10-My™ was then tested on 175 post-stroke patients who were recruited at ten public primary care healthcentres across Peninsular Malaysia, in a trial-within a trial study.
RESULTS: One item from the original Dutch SASC19 (HomeSat) was dropped. Internal consistency for remaining 10 items was high (Cronbach alpha 0.830). Exploratory factor analysis showed the SASC10-My™ had 2 factors: discharge transition and social support services after discharge. The mean total score for SASC10-My™ was 10.74 (SD 7.33). Overall, only 18.2% were satisfied with outpatient stroke care services (SASC10-My™ score ≥ 20). Detailed analysis revealed only 10.9% of respondents were satisfied with discharge transition services, while only 40.9% were satisfied with support services after discharge.
CONCLUSIONS: The SASC10-My™ questionnaire is a reliable and valid tool to measure caregiver or patient satisfaction with outpatient stroke care services in the Malaysian healthcare setting. Studies linking discharge protocol patterns and satisfaction with outpatient stroke care services should be conducted to improve care delivery and longer-term outcomes.
TRIAL REGISTRATION: No.: ACTRN12616001322426 (Registration Date: 21st September 2016.
Parents of children with cancer require health literacy support to meet their information needs

Tan CE, Lau SCD, Abdul Latiff Z, Lee CC, Teh KH, Mohd Sidik S

Health Info Libr J, 2023 Jun 18.
PMID: 37332240 DOI: 10.1111/hir.12491

BACKGROUND: Timely and relevant information helps parents to cope when a child is diagnosed with cancer. However, obtaining and understanding information is not a straightforward process for parents.
OBJECTIVES: This article aims to explain paediatric cancer parents' information behaviour related to the care of their child.
METHODS: Qualitative in-depth interviews were conducted with fourteen Malaysian paediatric cancer parents and eight healthcare professionals who worked with paediatric cancer patients. Reflexivity and inductive approaches were used to interpret the data to identify meaningful themes and subthemes.
RESULTS: Three themes about how paediatric cancer parents interact with information emerged: Acquiring information, internalising information, and using information. Information may be actively sought or passively acquired. Cognitive and affective aspects influence how information is internalised into meaningful knowledge. Knowledge then leads to further action including further information gathering.
CONCLUSION: Paediatric cancer parents need health literacy support to meet their information needs. They require guidance in identifying and appraising suitable information resources. Development of suitable supporting materials is needed to facilitate parents' ability to comprehend information related to their child's cancer. Understanding parents' information behaviour could assist healthcare professionals in providing information support in the context of paediatric cancer.
Fulltext Validation of the Caregiving Knowledge Questionnaire-My: Measuring Knowledge Regarding Positioning and Feeding among Malaysian Informal Caregivers of Stroke Patients

Tan CE, Abdul Aziz AF, Hi MY, Azmi NSA, Ishak NK, Farid FAM, et al.

Indian J Palliat Care, 2018 11 10;24(4):406-410.
PMID: 30410251 DOI: 10.4103/IJPC.IJPC_99_18

Aim: The majority of caregivers for stroke patients in Malaysia are informal caregivers, although there are no valid tools to measure their knowledge regarding caregiving. Therefore, this study validated the Caregiving Knowledge Questionnaire (CKQ-My) as an assessment of Malaysian stroke caregivers' knowledge regarding patient positioning and feeding.
Methods: Back-to-back translation was used to produce a bilingual version of the questionnaire. Hand drawings were used to replace photographs from the original questionnaire. Face validity and content validity were assessed, and construct validity was determined by comparing responses from informal caregivers, medical students, and primary care doctors. Finally, the internal consistencies of the subscales were determined.
Results: Pretesting showed that the translated version was sufficiently easy to understand. Internal consistency for the positioning subscale (28 items, Cronbach's α = 0.70) and feeding subscale (15 items, Cronbach's α = 0.70) was good. Mean scores for the positioning subscale for caregivers (mean: 17.1 ± 3.9), medical students (mean: 18.9 ± 3.1), and doctors (mean 21.5 ± 2.2) were significantly different (F = 5.28, P ' = 0.011). Mean scores for the feeding subscale for caregivers (mean 13.1 ± 2.5), medical students (mean 16.1 ± 1.9), and doctors (mean 16.1 ± 2.4) also differed significantly (F = 6.217, P = 0.006).
Conclusions: CKQ-My has good internal consistency and construct validity for the subscales measuring stroke caregivers' knowledge about positioning and feeding of stroke patients. It has potential as an assessment of effectiveness of caregiver training and for future studies on long-term stroke outcomes in Malaysia.
Fulltext Intention to seek medical consultation for symptoms of upper respiratory tract infection – a cross-sectional survey

Tan CE, Mohd Roozi AH, Wong WHR, Sabaruddin SAH, Ghani NI, Che Man Z

International Medical Journal Malaysia, 2015;14(2):9-16.
MyJurnal

Introduction: The common cold is the commonest reason for primary care encounters worldwide. This paper aims to describe the reasons that influence patients to seek medical consultation for the common cold.
Methods: This was a cross-sectional survey conducted among adult patients of an urban teaching primary care clinic. An adapted bilingual survey form was administered by the researchers to obtain data regarding their decision to seek medical consultation for a cold and the reasons for their decision. Quantitative analyses were done to describe the close-ended responses. Open-ended responses were analysed using a qualitative approach and
the frequencies of the themes were reported. Results: A total of 320 respondents participated in this study, with a response rate of 91.4%. They were predominantly females (59.4%), Malay (70.9%), and had tertiary education (65.9%). More than half of the patients (52.5%) said they would seek consultation for cold symptoms. Fever was the commonest symptom (57-61%) which compelled them to seek consultation. The commonest reason for seeking consultation was to get medications (41.7%), whereas the commonest reason not to seek consultation was the practice of self-medication (44.2%). Ethnicity was found to be significantly associated with the decision to seek doctor’s consultation.
Conclusion: Colds are usually self-limiting and do not result in complications. Empowering
patients by providing appropriate self-care knowledge can help to reduce the burden of primary care services.
Patients should be taught about red flag symptoms as well as drug safety for medications commonly taken for
colds.
Keywords: Upper respiratory tract infections, patient acceptance of health care, primary health care.
Intragenic linkage disequilibrium structure of the human perilipin gene (PLIN) and haplotype association with increased obesity risk in a multiethnic Asian population

Qi L, Tai ES, Tan CE, Shen H, Chew SK, Greenberg AS, et al.

J Mol Med (Berl), 2005 Jun;83(6):448-56.
PMID: 15770500

Perilipin is a lipid droplet surface protein present in adipocytes and steroidogenic cells. We examined five common single nucleotide polymorphisms (SNPs) at the perilipin (PLIN) locus (PLIN 6209C>T, 10171A>T, 11482G>A, 13041A>G, and 14995A>T) to investigate their association with obesity risk. The study population included 4,131 subjects of three ethnic groups (Chinese, Malay, and Indian) from Singapore. The prevalence of obesity in Malays and Indians was much higher than in Chinese. Moreover, in these groups the prevalence of obesity was three times higher in women than in men. Crude analysis indicated that haplotype 11212 (CAAAT) is shared by Malays and Indians and is significantly associated with increased obesity risk as compared to the most common haplotype 21111 (TAGAA): OR 1.65 (95% CI 1.11-2.46) in Malays and 1.94 (95% CI 1.06-3.53) in Indians. No associations between PLIN haplotypes and obesity risk were found in Chinese. To simplify the haplotype analyses we used a subgroup of three SNPs (11482G>A, 13041A>G, and 14995A>T) in positive linkage disequilibrium. These analyses revealed similar associations, showing that haplotypes XX212 (XXAAT) and XX222 (XXAGT) are associated with increased obesity risk in Malays OR 2.04 (95% CI 1.28-3.25) and 2.05 (95% CI 1.35-3.12) respectively, and that haplotype XXX212 (XXAAT) is significantly associated with increased obesity risk in Indians OR 2.16 (95% CI 1.10-4.26) after adjusting for covariates including age, sex, smoking, alcohol consumption, exercise, and diabetes status. Moreover, individual SNP analyses demonstrated that the PLIN 14995A>T SNP is the most informative single genetic marker for the observed haplotype association, being significantly associated with increased obesity risk in both Malays OR 2.28 (95% CI 1.45-3.57) and Indians OR 2.04 (95% CI 1.08-3.64). These results support the role of the PLIN locus as an ethnically dependent modulator of obesity risk in humans.
Insertional torque and pullout strength of pedicle screws with or without repositioning: a porcine study

Tan CE, Fok MW, Luk KD, Cheung KM

J Orthop Surg (Hong Kong), 2014 Aug;22(2):224-7.
PMID: 25163961

PURPOSE. To evaluate the insertion torque and pullout strength of pedicle screws with or without repositioning. METHODS. 20 fresh porcine lumbar vertebrae of similar size were used. The entry point was at the site just lateral and distal to the superior facet joint of the vertebra, and to a depth of 35 mm. A 6.2-mm-diameter, 35-mm-long pedicle screw was inserted parallel to the superior end plate on one side as control. On the other side, an identical screw was first inserted 10º caudal to the superior end plate, and then repositioned parallel to the superior end plate. The insertional torque and pullout strength were measured. RESULTS. Three of the specimens were excluded owing to pedicle fractures during the pullout test. Repositioned pedicle screws were significantly weaker than controls in terms of the maximum insertional torque (3.20 ± 0.28 vs. 2.04 ± 0.28 Nm, 36% difference, p<0.01) and pullout strength (1664 ± 378 vs.1391 ± 295 N, p<0.01). CONCLUSION. Repositioning pedicle screws should be avoided, especially when the pedicle wall is breached. If repositioning is deemed necessary, augmentation with polymethyl methacrylate or a screw with a larger diameter should be considered.
Fulltext Palliative care for a child: role of a primary care doctor

Tan CE, Md Radzniwan R, Khairani O, Ednin H

Malays Fam Physician, 2011;6(1):26-28.
PMID: 25606216 MyJurnal

A 7-year-old boy with a diagnosis of advanced medulloblastoma refractory to treatment was discharged from hospital for further palliative care at home. During this short and eventful period, the child developed spinal cord compression with progressive weakness of upper and lower limbs, neck pain, faecal and urinary incontinence. This case highlights the important roles of a primary care doctor in the provision of palliative care for a child in the community.

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