1.Nutritional Status and Nutritional Knowledge of Malay Pregnant Women in Selected Private Hospitals in Klang Valley
Zahara Abdul Manaf ; Nuruljannah Johari ; Lee Yee Mei ; Ng Sim Yee ; Chua Kai Yin ; Loke Wai Teng
Malaysian Journal of Health Sciences 2014;12(2):53-62
Adequate nutrition is important for mothers and their offspring during and after birth. This cross sectional study was
conducted to determine nutritional status and nutritional knowledge of pregnant women from two selected private
hospitals in Klang Valley, Malaysia. A total of 236 Malay pregnant women aged between 20 to 45 years old (mean
age 31+5 years) were recruited through convenient sampling method. Socio-demographic data, nutritional knowledge
and a 24-hours diet recall were obtained through a self-administered questionnaire. Anthropometric and haemoglobin
data were obtained from the antenatal records in the respective hospitals. The percentages of participants who were
underweight, normal, overweight and obese before pregnancy were 12.7%, 55.1%, 25.0% and 7.2% respectively. Among
those who were obese before pregnancy, a total of 59.7% had inadequate weight gain, 24.6% gained adequate weight
and 15.7% gained excessive gestational weight. About 33.5% of subjects were anaemic (Hb < 11.0g/dL). The mean daily
energy intake of the participants was 1748 ± 526 kcal which was 76% of RNI. Calcium (73% of RNI), folic acid (36% of
RNI), niacin (89% of RNI) and vitamin D (40% of RNI). The nutritional knowledge level of subjects was moderate (51.9 ±
13.8%). Lower monthly household income (p < 0.001), educational level (p < 0.001) and gestational stage (p < 0.05)
of participants were associated with a lower nutritional knowledge level. Nutritional knowledge score was positively
correlated with gestational weight gain (r = 0.166, p < 0.05) and haemoglobin level (r = 0.200, p < 0.05). Subjects
who claimed practising food taboos had higher nutritional knowledge score (54.9 ± 12.5%) than those who did not
(49.9 ± 14.4%)(p < 0.05). A comprehensive nutrition education should be integrated in the antenatal classes to improve
nutritional status of pregnant women
2.Antimicrobial resistance of Escherichia coli, Salmonella and enterococci isolated from surface of conventional broiler eggs, “Kampung” chicken eggs and carrying trays from wet markets in Selangor, Malaysia
Aw Yoong Kit, Loong Mei-Jean ; Yue Chii Xiang ; Lee Kok Ming ; Ng Sian Yee ; Lee Sui Mae
Malaysian Journal of Microbiology 2015;11(2):109-115
Aims: Bacteria on chicken egg surfaces can be potential sources of food borne diseases. The aim of this study was to
determine the prevalence of E. coli, Salmonella and enterococci on the surface of conventional broiler eggs, “Kampung”
chicken eggs and carrying trays and to determine the antimicrobial resistant profile of these isolates.
Methodology and results: Conventional broiler eggs, “Kampung” chicken eggs and carrying trays were sampled
randomly from nine wet markets in Selangor, Malaysia. The surface of the eggs and carrying trays were swabbed and E.
coli, Salmonella and enterococci were isolated using selective agars. Antimicrobial susceptibility testing (AST) was
performed on the isolates against different antimicrobials via disk diffusion test. A large proportion of E. coli isolates
(>50% of isolates from conventional broiler eggs and “Kampung” chicken eggs) was resistant to chloramphenicol and
tetracycline whereas enterococci (>60% of isolates from conventional broiler eggs and “Kampung” chicken eggs)
isolates were resistant to tetracycline and erythromycin. Salmonella isolates were found to be susceptible to all of the
antimicrobials tested except for tetracycline. There was also presence of isolates showing multiple resistances in this
study. E. coli isolates (8.8%) from the surface of “Kampung” chicken eggs were resistant against 10 different
antimicrobials whereas 17.8% of the enterococci isolates from the surface of “Kampung” chicken eggs were resistant to
11 different antimicrobials.
Conclusion, significance and impact of study: The presence of multiple-antimicrobial resistant bacteria especially on
the surface of “Kampung” chicken eggs that are ready to be sold to consumers is a serious concern. However, further
study has to be conducted to determine the ultimate source of the bacterial contamination before specific food safety
measures can be introduced.
Drug Resistance, Microbial
;
Salmonella
3.Prospective audit of febrile neutropenia management at a tertiary university hospital in Singapore.
Jing JIN ; Yee Mei LEE ; Ying DING ; Liang Piu KOH ; Siew Eng LIM ; Robert LIM ; Paul Ananth TAMBYAH ; Li Yang HSU
Annals of the Academy of Medicine, Singapore 2010;39(6):453-459
INTRODUCTIONFebrile neutropenia (FN) remains a major cause of morbidity and mortality in Oncology/Haematology units. We launched a new protocol for FN management that incorporates risk stratification at our institute from October 2008. An audit was performed concurrently to evaluate the protocol and to define the epidemiology of FN locally.
MATERIALS AND METHODSCase records of all inpatients with FN between October 2008 and June 2009 were reviewed prospectively. Clinical and microbiological characteristics were collated along with outcomes and programme adherence. Statistical testing was performed using Stata 10.1.
RESULTSThere were 178 FN episodes (50 in patients with solid cancers) from 131 patients. Forty-two (23.6%) episodes were classified as high-risk according to MASCC criteria. Initial blood cultures were positive in 49 (27.5%) episodes, of which gram-negative bacilli (GNB) predominated. Overall compliance to the protocol was 56.7%, with the main issue being disinclination to use oral antibiotics as fi rst-line empirical therapy for low-risk episodes. Overall mortality was 7.3% and infection-related mortality was 4.5%. High-risk FN and the presence of central venous catheters were independently associated with bacteraemia on multivariate analysis, but there were no independent predictors of infection-related mortality.
CONCLUSIONSGNB accounted for the majority of bloodstream infections at our institute, unlike data from developed countries. Uptake of the new FN protocol was satisfactory, although the use of oral antibiotics as fi rst-line empirical therapy can be improved. A better method for predicting infections caused by antibiotic-resistant GNB is urgently required, and antibiotic resistance trends should be monitored to enable the implementation of more appropriate antibiotic regimens over time.
Adult ; Aged ; Aged, 80 and over ; Drug Resistance, Microbial ; Female ; Fever ; drug therapy ; physiopathology ; Gram-Negative Bacteria ; Hospitals, University ; Humans ; Male ; Medical Audit ; Middle Aged ; Neutropenia ; drug therapy ; physiopathology ; Outcome Assessment (Health Care) ; Prospective Studies ; Severity of Illness Index ; Singapore ; Young Adult
4.Influence of rice and added sugar intakes on fasting plasma glucose and triacylglycerol levels amongst a population sample of Malaysian adults
Zhi Yee Lee ; Joshua Chuan Yung Foo ; Mei Qian Lim ; Zheng Xian Koh ; Wendy Hui Yi Wong ; Tony Kock Wai Ng
International e-Journal of Science, Medicine and Education 2015;9(1):26-31
Introduction: A recently published meta-analysis
showed that each additional serving of rice increased
risk of type 2 diabetes mellitus (DM) by an alarming
11%. We investigated whether this phenomenon is seen
in the Malaysian population by studying the effect of rice
intake and added sugar consumption on fasting plasma
glucose (FPG) and fasting triacylglycerol (TAG).
Methods: Ninety subjects (60 females, 30 males, aged
30-70 years), adequate to detect a weak-to-moderate
Pearson correlation of r=0.26 at a=0.05 and power=
0.80, were recruited by convenience sampling from six
communities in the Klang Valley, Malaysia. Fasting blood
samples were collected by finger-prick and analysed for
FPG (AccuCek, Roche) and TAG (Accutrend, Roche).
Macronutrient intakes, including rice, were obtained
by a single interview using a previously-evaluated food
frequency questionnaire (FFQ) and quantitated as grams
by the DietPLUS V2 programme. Added sugar intakes
by subjects were estimated using an Added Sugar Intake
excel programme.
Results: Rice contributed to 85% of dietary
carbohydrates, accounting for 41.8 % kcal of the average
1750- kcal diet. Rice intakes or added sugar consumption
did not have a significant correlation (p>0.05) with
FPG nor fasting TAG. Added sugar consumption, which
averaged 44g/person/day (5% kcal) was markedly lower
than the 137g/person/day reported elsewhere for the
Malaysian population.
Conclusion: High consumption of rice as a risk factor of
type 2 DM was not indicated in the present study. Since
white rice consumption varied 10-fold in the present
subjects, the reduction in daily intake of this staple food
represents a feasible option for cutting back on calorie
intake for overweight or obese individuals.
Triglycerides
5.Risk factors for adverse outcomes and multidrug-resistant Gram-negative bacteraemia in haematology patients with febrile neutropenia in a Singaporean university hospital.
Li Mei POON ; Jing JIN ; Yen Lin CHEE ; Ying DING ; Yee Mei LEE ; Wee Joo CHNG ; Louis Yi-An CHAI ; Lip Kun TAN ; Li Yang HSU
Singapore medical journal 2012;53(11):720-725
INTRODUCTIONInstitutional febrile neutropenia (FN) management protocols were changed following the finding of a high prevalence of ceftazidime-resistant Gram-negative bacteraemia (CR-GNB) among haematology patients with FN. Piperacillin/tazobactam replaced ceftazidime as the initial empirical antibiotic of choice, whereas carbapenems were prescribed empirically for patients with recent extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae colonisation/infection. An audit was conducted to determine the impact of these changes.
METHODSData from all FN episodes between October 2008 and December 2010 were collected prospectively, with mid-November 2009 demarking the transition between pre-intervention and intervention periods. Outcomes measured included 30-day mortality post-development of FN and the presence of CR-GNB.
RESULTSThere were 427 FN episodes (200 in the pre-intervention period) from 225 patients. The prevalence of CRGNB was 10.3%, while the 30-day mortality was 4.7%, with no difference between pre-intervention and intervention periods. Independent risk factors for 30-day mortality included the presence of active haematological disease, vancomycin prescription and older age. Independent factors associated with initial CR-GNB were profound neutropenia, the presence of severe sepsis and active haematological disease. Recent ESBL-producing Enterobacteriaceae colonisation/infection was not predictive of subsequent CR-GNB (positive predictive value 17.3%), whereas a model based on independent risk factors had better negative predictive value (95.4%) but similarly poor positive predictive value (21.4%), despite higher sensitivity.
CONCLUSIONA change in the FN protocol did not result in improved outcomes. Nonetheless, the audit highlighted that empirical carbapenem prescription may be unnecessary in FN episodes without evidence of severe sepsis or septic shock, regardless of previous microbiology results.
Academic Medical Centers ; Adult ; Bacteremia ; complications ; drug therapy ; Carbapenems ; therapeutic use ; Ceftazidime ; pharmacology ; Drug Resistance, Multiple ; Febrile Neutropenia ; complications ; drug therapy ; Female ; Gram-Negative Bacteria ; Humans ; Male ; Middle Aged ; Penicillanic Acid ; administration & dosage ; analogs & derivatives ; Piperacillin ; administration & dosage ; Prevalence ; Prospective Studies ; Risk Factors ; Sepsis ; Singapore ; Treatment Outcome ; Universities
6.Prospective audit of post-chemotherapy febrile neutropenia in patients with solid cancer and lymphoma in two Singaporean cancer centres.
Mabel WONG ; Jing JIN ; Min Han TAN ; Yee Mei LEE ; Ten Eng LEE ; Ying DING ; Hong Chan YONG ; Siew Eng LIM ; Louis Ya CHAI ; Noan Minh CHAU ; Li Yang HSU
Annals of the Academy of Medicine, Singapore 2012;41(7):287-293
INTRODUCTIONFebrile neutropenia (FN) is a significant cause of mortality and morbidity in oncology and haematology units worldwide. The overall mortality in hospital surveys in Singapore surveys on post-chemotherapy FN has ranged between 3.0% and 8.8%. However, recent evidence indicates that outpatient management of patients with low-risk FN is safe and cost-effective.
MATERIALS AND METHODSWe conducted a prospective audit on a cohort of adult patients with post-chemotherapy FN seen at 2 local public sector cancer centres over a 1-year period in order to define their epidemiological characteristics and outcomes, and also to assess the uptake of early discharge/outpatient management strategies for these patients.
RESULTSWe reviewed 306 FN episodes from 248 patients. Patient characteristics and outcomes were similar between both institutions. Eleven (3.7%) FN episodes were managed as outpatient and none developed complications. Overall 30-day mortality was 6.6%, while the median length of stay (LOS) was 7 days (IQR: 4 to 11 days). The only independent risk factor for mortality was severe sepsis (OR:13.19; 95% CI: 1.98 to 87.7; P = 0.008). Factors independently associated with a longer LOS were vancomycin prescription (coefficient: 0.25; 95% CI: 0.08 to 0.41; P = 0.003), longer duration of intravenous antibiotics (coefficient: 0.08; 95% CI: 0.06 to 0.10; P <0.001), and prior review by an infectious diseases physician (coefficient: 0.16; 95% CI: 0.01 to 0.31; P = 0.034).
CONCLUSIONThis audit demonstrated that mortality from FN in our 2 cancer centres is low and comparable to international institutions. It also demonstrates that outpatient management of FN is safe in selected patients, and can be further expanded for right-siting of resources.
Adult ; Anti-Bacterial Agents ; therapeutic use ; Antineoplastic Agents ; adverse effects ; Bacterial Infections ; epidemiology ; Cohort Studies ; Female ; Fever ; epidemiology ; etiology ; Humans ; Male ; Middle Aged ; Mycoses ; epidemiology ; Neoplasms ; complications ; drug therapy ; Neutropenia ; epidemiology ; etiology ; Prospective Studies ; Singapore ; epidemiology
7.Validating lactate dehydrogenase (LDH) as a component of the PLASMIC predictive tool (PLASMIC-LDH)
Christopher Chin KEONG LIAM ; Jim Yu-Hsiang TIAO ; Yee Yee YAP ; Yi Lin LEE ; Jameela SATHAR ; Simon MCRAE ; Amanda DAVIS ; Jennifer CURNOW ; Robert BIRD ; Philip CHOI ; Pantep ANGCHAISUKSIRI ; Sim Leng TIEN ; Joyce Ching MEI LAM ; Doyeun OH ; Jin Seok KIM ; Sung-Soo YOON ; Raymond Siu-Ming WONG ; Carolyn LAUREN ; Eileen Grace MERRIMAN ; Anoop ENJETI ; Mark SMITH ; Ross Ian BAKER
Blood Research 2023;58(1):36-41
Background:
The PLASMIC score is a convenient tool for predicting ADAMTS13 activity of <10%.Lactate dehydrogenase (LDH) is widely used as a marker of haemolysis in thrombotic thrombocytopenic purpura (TTP) monitoring, and could be used as a replacement marker for lysis. We aimed to validate the PLASMIC score in a multi-centre Asia Pacific region, and to explore whether LDH could be used as a replacement marker for lysis.
Methods:
Records of patients with thrombotic microangiopathy (TMA) were reviewed. Patients’ ADAMTS13 activity levels were obtained, along with clinical/laboratory findings relevant to the PLASMIC score. Both PLASMIC scores and PLASMIC-LDH scores, in which LDH replaced traditional lysis markers, were calculated. We generated a receiver operator characteristics (ROC) curve and compared the area under the curve values (AUC) to determine the predictive ability of each score.
Results:
46 patients fulfilled the inclusion criteria, of which 34 had ADAMTS13 activity levels of <10%. When the patients were divided into intermediate-to-high risk (scores 5‒7) and low risk (scores 0‒4), the PLASMIC score showed a sensitivity of 97.1% and specificity of 58.3%, with a positive predictive value (PPV) of 86.8% and negative predictive value (NPV) of 87.5%. The PLASMIC-LDH score had a sensitivity of 97.1% and specificity of 33.3%, with a PPV of 80.5% and NPV of 80.0%.
Conclusion
Our study validated the utility of the PLASMIC score, and demonstrated PLASMIC-LDH as a reasonable alternative in the absence of traditional lysis markers, to help identify high-risk patients for treatment via plasma exchange.
8.Risk factors and time-trends of cytomegalovirus (CMV), syphilis, toxoplasmosis and viral hepatitis infection and seroprevalence in human immunodeficiency virus (HIV) infected patients.
Raymond Bt LIM ; Mei Ting TAN ; Barnaby YOUNG ; Cheng Chuan LEE ; Yee Sin LEO ; Arlene CHUA ; Oon Tek NG
Annals of the Academy of Medicine, Singapore 2013;42(12):667-673
INTRODUCTIONChronic bacterial, viral and parasitic infections contribute to the morbidity and mortality associated with human immunodeficiency virus (HIV) infection. This study investigated risk factors and time-trends of the seroprevalence of cytomegalovirus (CMV), toxoplasmosis and hepatitis A total antibody; and co-infection with syphilis, hepatitis B and hepatitis C among newly diagnosed HIV individuals in Singapore.
MATERIALS AND METHODSThis was a cross-sectional study. A random sample of 50% of HIV infected patients who visited the Communicable Disease Centre (CDC), Singapore for first-time care from January 2006 to December 2011 were analysed.
RESULTSAmong the 793 study subjects, 93.4% were male; 77.9% of them were of Chinese ethnicity; mean age at HIV diagnosis was 41.4 years; and the mean baseline CD4+ T-cell count was 222 cells/mm³. The prevalence of sero-reactivity for CMV was 96.8%; hepatitis A: 40.9%; and toxoplasmosis: 23.7%. Co-infection with syphilis was identified in 12.3%; hepatitis B: 8.1%; and hepatitis C: 2%. Among those co-infected with hepatitis C, 73.3% of them were intravenous drug user (IVDU). Syphilis co-infection was significantly more common among men who have sex with men (MSM) (multivariate OR: 2.53, 95% CI, 1.31 to 4.90, P = 0.006).
CONCLUSIONThis study described the baseline rates of HIV co-infection with syphilis, hepatitis B and C in Singapore, and sero-reactivity to CMV, toxoplasmosis and hepatitis A. The increased rates compared to the general population may have important consequences for disease progression, response to antiretroviral treatment and long-term general health.
Adult ; Coinfection ; epidemiology ; Cross-Sectional Studies ; Cytomegalovirus ; isolation & purification ; Cytomegalovirus Infections ; blood ; epidemiology ; Female ; HIV Infections ; epidemiology ; Hepacivirus ; isolation & purification ; Hepatitis, Viral, Human ; blood ; epidemiology ; Humans ; Male ; Odds Ratio ; Risk Factors ; Seroepidemiologic Studies ; Singapore ; epidemiology ; Syphilis ; blood ; epidemiology ; Time Factors ; Toxoplasmosis ; blood ; epidemiology
9.Prevalence of overweight and obesity in Chinese preschoolers in Singapore.
Mar Khin PWINT ; Yung Seng LEE ; Teck Yee WONG ; Seang Mei SAW
Annals of the Academy of Medicine, Singapore 2013;42(2):66-72
INTRODUCTIONThis study examines the prevalence of overweight and obesity in 6- to 72-month-old Chinese preschoolers in Singapore using 3 references.
MATERIALS AND METHODSThis was a population-based cross-sectional study of 3009 Chinese preschoolers aged 6 to 72 months from southwestern and western parts of Singapore. Overweight and obesity were defi ned by using the Center for Disease Control (CDC) (85th and 95th percentile, respectively), the International Obesity Task Force (IOTF) and the local National Health Group Polyclinics (NHGP), Singapore (90th and 97th percentile, respectively) references.
RESULTSThe prevalence of overweight and obesity in 24 to 72 months old Chinese children were 8.1% and 7.1% (the CDC reference), 7.6% and 3.9% (the IOTF reference) and 7.5% and 5.3% (the local reference [NHGP]) respectively. For preschoolers aged 6 to 72 months, the prevalence of overweight and obesity was 7.0% and 5.3%, respectively, using the local reference. An increasing trend in the prevalence of obesity with increasing age was seen in both genders, using the CDC and IOTF references (P ≤0.001 and 0.001, respectively). The boys were more likely to be obese than the girls using the CDC reference (OR = 1.42, 95% CI, 1.02 to 1.97, P = 0.03).
CONCLUSIONOur study showed a lower prevalence of overweight and obesity among Chinese preschoolers in Singapore when compared to other countries like the United States, Italy, Chile using the CDC and/or IOTF references. The CDC reference overestimated whereas the IOTF reference underestimated the prevalence of overweight and obesity for our population when compared to using the local NHGP reference.
Body Mass Index ; Child ; Child, Preschool ; China ; ethnology ; Cross-Sectional Studies ; Female ; Humans ; Infant ; Male ; Obesity ; diagnosis ; ethnology ; Overweight ; diagnosis ; ethnology ; Prevalence ; Sex Distribution ; Singapore ; epidemiology
10.The chemical, heavy metal and microbial quality of well water in an urbanised village in the Klang Valley
Stephen Ambu ; Stacey Foong Yee Yong ; Yvonne Ai Lian Lim ; Mak Joon Wah ; Donald Koh Fook Chen, Soo Shen Ooi, Sau Peng Lee, Ti Myen Tan ; Mei Yen Goh ; Danapridha Nyanachendram
International e-Journal of Science, Medicine and Education 2014;8(3):28-44
Background:
The public health issue of consuming
groundwater is a major concern because people often
extract groundwater directly from the aquifers either
through wells or boreholes without treating it with
any form of filtration system or chlorine disinfection.
Based on the Malaysian National Drinking Water
guidelines the current study was designed to provide a
better understanding on the variable factors that are
influencing the quality of well-water in an urbanised
village in Malaysia. Well water quality assessment
of heavy metals, chemicals, microbial and physical
parameters were carried out for Sungai Buloh Village
in the Klang Valley to ensure it was safe for human
consumption.
Materials and Methods:
Water samples were collected
from wells at four sites (Sites A,B,C,D), a river and a
tap inside a house in Sungai Buloh village. Soil was
sampled from the riverbed and area surrounding the
wells. Samples were collected every two months over
a one year duration from all sites. The water samples
were processed and examined for viruses, coliforms and
protozoa as well as for heavy metal contaminants.
Results:
The turbidity and colour ranged in the average of 0.57-0.13 Nephelometric Turbidity (NTU) and 4.16-
5.00 Total Conjunctive Use (TCU) respectively for all
sites except Site C. At Site C the turbidity level was
2.56 ± 1.38 NTU. The well-water was polluted with
coliforms (1.2 to 2.4 x 10
3
CFU/100 ml) in all sites,
E. coli
(0.12 - 4 x 10
2
CFU/100 ml CFU/ 100 ml) and
Cryptosporidium
oocysts (0.4 cysts/100 ml). All the
heavy metals and chemical parameters were within the
Malaysian Guidelines’ limits except manganese. The
average pH ranged from 5.44 - 6.62 and the temperature
was 28 ºC.
Conclusion:
In summary, the well water at Sungai
Buloh is considered unsafe for consumption due to
pollution. Therefore the major thrust will be to provide
better quality of drinking water to the residents of the village.