Nguyen Do Thai Nguyen

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BACKGROUND Socioeconomic changes have led to profound changes in individuals' lifestyles, including the adoption of unhealthy food consumption patterns, prevalent tobacco use, alcohol abuse and physical inactivity, especially in large cities like Ho Chi Minh City (HCMC). The Stepwise Approach to Surveillance of Non-communicable Disease Risk Factors survey(More)
OBJECTIVE To determine the prevalence and factors associated with overweight/obesity among adults in Ho Chi Minh City (HCMC) using Caucasian and Asian cut-offs. STUDY DESIGN A cross-sectional survey. METHODS In 2005, 1,971 adults aged 25-64 years in HCMC were randomly selected using a proportional to population size sampling method to estimate the(More)
BACKGROUND The increasing prevalence of chronic lifestyle diseases in developing countries warrants reliable and valid surveillance of physical activity levels in the population. This study assesses the test-retest repeatability and criterion validity of the WHO-recommended Global Physical Activity Questionnaire (GPAQ) in Vietnamese adults during the dry(More)
BACKGROUND A clustering of metabolic risk factors increases the likelihood of cardiovascular diseases. This study reports the metabolic risk profiles and the prevalence of metabolic risk factors and associated factors among Vietnamese adults in Ho Chi Minh City. METHODS A cross-sectional study was carried out in a representative sample of adults aged(More)
BACKGROUND To determine the impact of cataract surgery on vision-related quality of life (VRQOL) and examine the association between objective visual measures and change in VRQOL after surgery among bilateral cataract patients in Ho Chi Minh City, Vietnam. METHODS A cohort of older patients with bilateral cataract was assessed one week before and one to(More)
AIM Little information exists on the impact of cataract surgery on falls and other injuries in Vietnam. The aim of this study was to determine the impact of first and both eye cataract surgery on the number of falls and other injuries among bilateral cataract patients in Ho Chi Minh City, Vietnam. MATERIALS AND METHODS A longitudinal cohort study was(More)
PURPOSE To determine the prevalence of falls in the 12 months prior to cataract surgery and examine the associations between visual and other risk factors and falls among older bilateral cataract patients in Vietnam. METHODS Data collected from 413 patients in the week before scheduled cataract surgery included a questionnaire and three objective visual(More)
In this paper, a new technique for facial expression recognition is proposed which uses the statistical feature of the whole face and classify the expression using neural network classifier. When the face image is input, region of interest (ROI) is being obtained to evaluate the statistical feature of the face. Using these, features we classify the face(More)
BACKGROUND Depression is common among older populations with cataract. However, the impact of cataract surgery on depression in both developed and developing countries remains unclear. The aim of this study is to determine the impact of cataract surgery on depressive symptoms and to examine the association between objective visual measures and change in(More)