Introduction The most effective and affordable public health strategy to prevent
hypertension, stroke and renal disease is by reducing daily salt consumption.
Therefore, this study aims to determine the association of knowledge, attitude
and practice on salt diet intake and to identify foods contributing to high
sodium intake.
Methods Secondary data analysis was performed on MySalt 2016 data. It was
conducted from November 2015 until January 2016 which involving Ministry
of Health Staff worked at 16 study sites in Malaysia. Salt intake was
measured using 24 hours urinary sodium excretion. Food frequency
questionnaire was used to determine the sodium sources. Knowledge, attitude
and practice of salt intake were assessed using a validated questionnaire
adapted from WHO. Demographic data and anthropometric measures also
were collected. Sodium levels of more than 2400mg/day was categorised as
high sodium intake. Data were analysed using SPSS software version 21.
Results The mean sodium intake estimated by 24 hours urinary sodium excretion was
2853.23 + 1275.8 mg/day. Food groups namely rice/noodles (33.8%),
sauces/seasoning (20.6%), meat and poultry (12.6%) and fish/seafoods
(9.3%) were the major contributors of dietary sodium. In multiple logistic
regression analysis, being a male (aOR=2.83, 95% CI 2.02 – 3.96) and obese
(aOR=6.78, 95% CI 1.98 – 23.18) were significantly associated with high
urinary sodium excretions. In addition, those who were unsure that high salt
intake can cause hypertension (aOR=1.24, 95% CI 0.65 – 2.36), those who
think that they consumed too much salt (aOR=2.10, 95% CI 1.13 – 3.87) and
those who only use salt rather than other spices for cooking (aOR=2.07, 95%
CI 1.29 – 3.30) were significantly associated with high urinary sodium
excretion.
Conclusions This study showed that the main sources of sodium among Malay healthcare
staff is cooked food. Poor knowledge and practice towards reducing salt
consumption among them contributes to the high sodium consumption. The
practice of healthy eating among them together with continuous awareness
campaign is essential in order to educate them to minimize sodium
consumption and to practice healthy eating.
Introduction: Intake of soy isoflavones has been shown to be beneficial in reducing
blood pressure, a known cardiovascular risk factor. This study investigated the
association between intake of soy isoflavones and blood pressure among multiethnic Malaysian adults. Methods: A total of 230 non-institutionalised Malaysians
aged 18-81 years were recruited through multi-stage random sampling from urban
and rural areas in four conveniently selected states. Participants were interviewed
on socio-demographics, medical history, smoking status, and physical activity.
Measurements of height, weight, waist circumference (WC), and blood pressure
(BP) were taken. Information on usual intake of soy foods was obtained using a
validated semi-quantitative food frequency questionnaire. Results: The mean
intake of soy protein of both urban (3.40g/day) and rural participants (3.01g/day)
were lower than the USFDA recommended intake level of soy protein (25.00g/day).
Urban participants had significantly higher intake of isoflavones (9.35±11.31mg/
day) compared to the rural participants (7.88±14.30mg/day). Mean BP levels were
significantly lower among urban (136/81mmHg) than rural adults (142/83mmHg).
After adjusting for age, gender, educational level, household income, smoking status,
physical activity, BMI and WC, soy protein intake was significantly associated with
both SBP (R2=0.205, β=-0.136) and DBP (R2=0.110, β=-0.104), whilst soy isoflavones
intake was significantly associated with SBP (β=-0.131). Intake of 1 mg of isoflavone
is estimated to lower SBP by 7.97 mmHg. Conclusion: Higher consumption of
isoflavones among the urban participants showed an association with lower levels
of SBP. Use of biological markers for estimating isoflavones levels is recommended
to investigate its protective effects on blood pressure.
Introduction Food labeling regulation has been implemented to enable consumers, including those with chronic diseases to make healthy informed choices before purchasing pre-packaged foods. The purpose of this study is to determine the prevalence of obese adults in Malaysia who practice reading food labels. It explored types of labels read and understanding of the information.
Methods Findings presented in this study were captured from the secondary analysis of National Health and Morbidity Survey’s (NHMS, 2006) food label study which focused only on obese adults (BMI > 30 kg/m2) aged 18 and above. This nation-wide cross sectional study was conducted from April to August 2006 using an interview-based questionnaire. Complex data analysis was done using Stata version 12.0.
Results There were 4565 obese respondents with the mean age of 33 ± 9.7 (18-60 years old). About 54.7% completed high-school and 9.9% were higher degree
holders. Prevalence of obese adults who claimed to read label was 80.5% (95%CI: 79.3, 81.6). Findings showed significant results in reading and understanding labels among all age group categories, Malay, Indian and other Bumiputras, all education categories and married respondents. Expiry date was the highest percentage being read (74.5%), followed by fat content (15.3%), vitamin (11.8%) and carbohydrate (10.9%).
Conclusions The obese population in Malaysia claimed to read and understand the food label but did not focus on specific macronutrients related to their health
condition. Findings can be used to implement effective education programmes targeting the relevant groups to instill an awareness to read, understand and use the label information as one of the means in combating obesity.
Study name: National Health and Morbidity Survey (NHMS-2006)
Introduction The prevalence of Type 2 diabetes mellitus (T2DM) is increasing worldwide
and many of these affected individuals remain unidentified. Undiagnosed
T2DM may impose substantial public health implications because these
individuals remain untreated and at risk for complications. The objective of
this study was to determine the national prevalence of undiagnosed T2DM
and to identify the associated risk factors.
Methods A nationwide cross-sectional study was conducted involving 17,783
respondents. Two-stage stratified sampling design was used to select a
representative sample of the Malaysian adult population. Structured
validated questionnaires with face to face interviews were used to obtain
data. Respondents, who claimed that they were not having diabetes, were
then asked to perform a fasting blood glucose finger-prick test by Accutrend
GC machine.
Results The prevalence of undiagnosed T2DM was 8.9% (n=1587). The highest
percentage of undiagnosed T2DM was found among males (10.2%), 55-59
years old (13.4%), highest education attainers of primary school (11.1%),
Indians (10.3%), married (10.3%), working (8.9%) and living in the urban
areas (9.2%). Multivariate analyses showed that factors associated with
undiagnosed T2DM were gender, age group, ethnicity, marital status, obesity
and hypertension.
Conclusion This study found an increasing trend of undiagnosed T2DM in Malaysia
compared to 2006. This finding is alarming as risk factors associated with
undiagnosed diabetes were related to most of the socio-demographic factors
studied. Therefore, early diabetic screening is crucial especially among adults
aged 30 and above to prevent more serious complications of this disease.
There are several methods available for assessment of sodium intake, including dietary and urinary excretion, which are fraught with methodological difficulties. Therefore, the aim of this study was to validate dietary and urinary excretion methods against 24-hour urinary excretion method in estimating sodium intake in Malaysian adults. A cross-sectional study has been carried out between November to December 2015. About 1568 adults aged 18 to 59 years old have participated from 16 study sites located in the 13 states and two federal territories of Malaysia. The study collected basic socio-demographic data and habitual dietary intake by Food Frequency Questionnaire (FFQ). Respondents were also asked to complete a two-day food intake diary (2FD) and collect their 24-hours urine and spot urine using standard protocols. A total of 1116 adults successfully completed the survey, yielding a response rate of 71%. Sodium intake from 24-hour urine excretion was estimated at 2585.9mg/day which is above the recommendation by World Health Organization (WHO). The 2FD showed the nearest mean estimate to the reference method but the spot urine with Tanaka’s predictive equation showed the least bias. The estimation of sodium from spot urine alone or with Kawasaki’s predictive equation and FFQ method showed poor mean estimates and a large bias compared to the reference method. The 2FD and spot urine with Tanaka’s prediction equation can be good alternatives for estimating daily sodium intake at the population level but not at the individual level.
Introduction Overweight and obesity is a major public health problem in Malaysia. This study aims to determine the prevalence of overweight and obesity among the Malaysian adult population and their association with socio-demographic characteristics (gender, ethnic, and age groups).
Methods A total of 17,257 adults aged 18 years and older (8,252 men, 9,005 women)
were assessed for BMI status, with a response rate of 97.8%, through a household survey from the National Health and Morbidity Survey (NHMS), conducted in all states of Malaysia in 2011.
Results All socio-demographic factors were consistently associated with higher chance of being overweight (except gender and location) and obesity (except location and household income). The identified risk of overweight were
Indian (aOR: 1.8, 95% CI: 1.2-2.8), aged 50-59 years (aOR: 2.8, 95% CI: 2.0-3.9), widower (aOR: 1.6, 95% CI: 1.3-2.0), subject with secondary education (aOR: 1.2, 95% CI: 1.0-1.4), Homemaker/unpaid worker (aOR:
1.3, 95% CI: 1.1-1.4), and with high household income group (aOR: 1.3, 95% CI: 1.2-1.6). The identified risk of obesity were women (aOR: 1.4, 95% CI: 1.2-1.6), Indian (aOR: 1.7, 95% CI: 0.9-3.2), aged 30-39 years (aOR: 3.6,
95% CI: 2.4-5.5), widower (aOR: 1.2, 95% CI: 0.9-1.6), subjects with primary education (aOR: 1.2, 95% CI: 0.9-1.6), Homemaker/unpaid worker (aOR: 1.3, 95% CI: 1.1-1.6), and with middle household income group (aOR: 1.3, 95% CI: 1.2-1.6).
Conclusions Our data indicate a high prevalence of overweight and obesity in the
population. Several sociodemographic characteristics are associated with both overweight and obesity. This study highlights the serious problem ofoverweight and obesity among Malaysia adults. Documentation of these problems may lead to research and policy agendas that will contribute both to our understanding and to the reduction of these problems.
Study name: National Health and Morbidity Survey (NHMS-2011)