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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 Validation of Malay Version of the COVID-19 Burnout Scale

Ang CS, Lee KW, Voon SP, Ho MC, Tan CE, Ching SM, et al.

Oman Med J, 2023 Jan;38(1):e456.
PMID: 36937773 DOI: 10.5001/omj.2023.20

OBJECTIVES: From early 2020, Malaysia had to implement nationwide lockdowns, quarantines, and other social distancing practices to contain the spread of COVID-19 virus, leading to symptoms of psychosocial burnout among the people. The aim of the present research is to develop and validate a Malay language version of the COVID-19 Burnout Scale (M-COVID-19-BS).
METHODS: This three-phase study was conducted among Malaysian population. Phase 1 involved forward and backward translations of the Scale to Malay language by four professional bilingual translators. In Phase 2, the new M-COVID-19-BS instrument was piloted on 30 participants who suggested minor lexical modifications. Phase 3 consisted of online recruiting of Malaysian citizens to answer a composite questionnaire comprising the M-COVID-19-BS, Copenhagen Burnout Inventory (CBI), World Health Organization Quality of Life Scale Abbreviated Version (WHOQOL-BREF), and Fear of COVID-19 Scale (FCV-19S). Data were statistically analyzed.
RESULTS: The composite four-part questionnaire in Malay was answered by N = 225 Malaysian citizens. The M-COVID-19-BS instrument demonstrated a good internal consistency (Cronbach's alpha = 0.926) and had a unidimensional factor structure. M-COVID-19-BS scores positively correlated with the three CBI subscales, showing evidence of convergent validity. Negative correlation was reported between M-COVID-19-BS and WHOQOL-BREF, achieving discriminant validity. M-COVID-19-BS also exhibited moderate positive correlations with the FCV-19S, thus supporting its concurrent validity.
CONCLUSIONS: Results demonstrate that M-COVID-19-BS is a valid and reliable instrument to assess burnout symptoms related to COVID-19 among Malay-speaking populations either collectively or as a self-care tool to detect burnout symptoms without needing to further burden the already overwhelmed Malaysian healthcare system.
Uncoupling protein 2 promoter polymorphism -866G/A, central adiposity, and metabolic syndrome in Asians

Shen H, Qi L, Tai ES, Chew SK, Tan CE, Ordovas JM

Obesity (Silver Spring), 2006 Apr;14(4):656-61.
PMID: 16741267

A polymorphism in the promoter region of uncoupling protein 2 gene -866G/A has been associated with its expression levels in adipose tissue, the risk of obesity, and metabolic abnormalities. Our purpose was to examine the associations of -866G/A with body fat and the risk of metabolic syndrome in a random sample of 4018 Asians (1858 men and 2160 women) from three ethnic groups (Chinese, Malay, and Indian). The minor allele frequency of -866G/A polymorphism in South Asians was similar to that in whites. After adjustment for covariates including age, cigarette smoking, and physical activity, the -866A/A genotype was associated with higher waist-to-hip ratio as compared with the wild-type genotype in Chinese and Indian men (p = 0.018 and p = 0.046, respectively). Moreover, Indian men with -866A/A genotype had a significantly increased risk of metabolic syndrome as compared with those homozygous for the wild-type (odds ratio, 2.66; 95% confidence interval, 1.21 to 5.88; p = 0.015). Such a risk was mainly caused by the excess presence of hypertriglyceridemia and central obesity. Our findings indicate that the uncoupling protein 2 gene -866G/A polymorphism may increase the risks of central obesity and metabolic syndrome, with greater effects on Asian men.
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.
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.
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.
Social support, self-efficacy and their correlation among patients with Type 2 Diabetes Mellitus: A primary care perspective

Rashid AA, Zuhra H, Tan CE

Med J Malaysia, 2018 08;73(4):197-201.
PMID: 30121681 MyJurnal

INTRODUCTION: Social support and self-efficacy are factors that influence patients' health behaviour. However, the relationship between these two factors among patients with Type 2 Diabetes Mellitus (T2DM) has not been adequately explored. This study aims to report social support and selfefficacy of Malaysian T2DM patients, and their correlations.
METHODS: This cross-sectional questionnaire study involved 329 patients with T2DM who received their follow up at a public primary care clinic. Patients were selected via systematic random sampling. Patients self-completed locally adapted versions of the Medical Outcomes Study (MOS) Social Support Survey and Diabetic Management Self Efficacy Scale (DMSES). The scores of both tools were analysed to determine the association and correlation between social support and self-efficacy.
RESULTS: The mean score for overall social support was 72.7±21.40 score range (0-100). "Affectionate support" was rated the highest averaged mean score at 78.31±23.71 (score range: 0-100). The mean DMSES score was 147.6±35.5 (score range :0-200), of which "medications" subscale was rated the highest with averaged mean scores 9.07±1.67 (score range: 0-10). Overall social support and self-efficacy were found to be weakly correlated (r=0.197, p<0.001). However, all subscales of social support were moderately correlated with "medications" subscale of self-efficacy.
CONCLUSION: Social support is significantly associated with patients' self-efficacy in handling their own medications.
Rightful place of qualitative research in family medicine and healthcare

Tong SF, Tan CE

Malays Fam Physician, 2022 Nov 30;17(3):2-8.
PMID: 36606174 DOI: 10.51866/cm0004

Evidence-based medicine is the foundation of current medical practice. Suitable evidence is needed to support the holistic approach in clinical practice. Quantitative research produces some evidence needed for disease treatment based on probabilities or averages. However, the practice of evidence-based medicine should be personalised to individual patients without relying solely on an average perspective. Beliefs, values and expectations are unique for each individual and may differ significantly from the average. Therefore, understanding individual differences requires evidence from qualitative research. This is particularly important in family medicine practice, which focuses on holistic care for the person, family and community. Findings from properly conducted qualitative research can offer in-depth and comprehensive accounts on healthcare issues from patient and practice perspectives. Qualitative research also provides explanatory power and analytical transferability, which can be applied into daily family medicine practice. In conclusion, evidence from qualitative research should be rightfully equally acknowledged in family medicine and healthcare.
Reply letter to: Is there any importance of Migraine with Aura amongst medical students?

Thiagarajan A, Muhammad NA, Tan CE

Malays Fam Physician, 2022 Nov 30;17(3):156-157.
PMID: 36606181 DOI: 10.51866/lte.249r
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.
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
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 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.
Fulltext Occupational Safety & Health Management and Corporate Sustainability: The Mediating Role of Affective Commitment

Tan ZC, Tan CE, Choong YO

Saf Health Work, 2023 Dec;14(4):415-424.
PMID: 38187210 DOI: 10.1016/j.shaw.2023.10.006

BACKGROUND: Occupational safety & health management (OSH) has garnered greater attention for its significance in promoting corporate sustainability for organizations in recent decades. The construction industry, in particular, is a major contributor to Malaysia's thirst for corporate sustainability in order to provide long-term support for the country. Thus, the main tenet of this study is to examine the mediating effect of employee affective commitment on the relationship between OSH and corporate sustainability.
METHODS: A questionnaire was administered to 273 full-time employees of listed construction companies in Malaysia. Smart PLS software version 3 was used to test the proposed model and hypotheses. Both the measurement model and the structural model were evaluated.
RESULTS: According to the findings, OSH and its dimensions are positively related to employee affective commitment. Employee affective commitment, on the other hand, has been found to be significantly related to corporate sustainability and its dimensions: economic, social, and environmental sustainability. Apart from this, the prominent results reveal that employee affective commitment partially mediates the relationship between OSH and corporate sustainability and its dimensions: economic, social, and environmental sustainability.
CONCLUSION: This empirical finding adds to the existing literature in explaining how OSH and affective commitment led to corporate sustainability. Several implications are offered to various stakeholders, such as construction companies, policymakers, and relevant regulators.
Fulltext Knowledge and Concerns of Parents Regarding Childhood Fever at a Public Health Clinic in Kuching, East Malaysia

Bong WT, Tan CE

Open Access Maced J Med Sci, 2018 Oct 25;6(10):1928-1933.
PMID: 30455776 DOI: 10.3889/oamjms.2018.339

BACKGROUND: Parental anxiety regarding fever may be unwarranted as most cases are owing to self-limiting causes.
AIM: To assess the level of knowledge and concerns regarding childhood fever among parents with young children in a public health clinic in Kuching, East Malaysia.
METHODS: This cross-sectional study was conducted among parents recruited from a maternal and child health clinic, with children aged 6 months to 6 years. The participants completed a self-administered questionnaire regarding their knowledge and concerns about childhood fever. Descriptive statistical analyses were performed, and associations between dependent and independent variables were determined.
RESULTS: Only 26.1% of participants were found to have good knowledge. Knowledge regarding childhood fever was significantly associated with parent's ethnicity, education level, and household income. About 72% of parents were always worried about their child's illness. Three major reasons for their concerns were persistently rising temperature; discomfort caused by the fever, and feared complications of fever.
CONCLUSION: Excessive parental anxiety due to poor knowledge and misconceptions about fever may lead to poor quality of life and inappropriate management of fever. Healthcare providers may help by educating parents about fever and serious signs that indicate the need to seek healthcare advice.
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.
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.
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 Influences on the decision to use contraception among Sarawakian women with diabetes: a qualitative exploration

Law DS, Tan CE, Tong SF

Sex Reprod Health Matters, 2019 Dec;27(1):1571316.
PMID: 31533560 DOI: 10.1080/09688080.2019.1571316

Family planning is extremely important for women with diabetes due to the various health risks and other social impacts of pregnancy in this population. Unfortunately, contraceptive use among women with diabetes remains low. This study explored the reasons influencing the decision to use contraception among East Malaysian (Sarawakian) women with diabetes. This was an exploratory qualitative study conducted at an urban public health clinic in Sarawak. Purposive sampling was used to recruit 12 women with type 2 diabetes mellitus. Semi-structured in-depth interviews were audio recorded and transcribed and then subjected to interpretive thematic analysis. Five themes appear to influence the decision to use contraception: likelihood of becoming pregnant, desired family size, personal health risks associated with getting pregnant, social implications of getting pregnant, and opinions of significant others. Among Sarawakian women with diabetes, the decision to use contraception was influenced by more than just health-related factors. Contraception counselling for this group of women should factor in their health beliefs, personal values, and social factors. Community involvement and peer support are potential strategies to improve contraception use.
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.

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