Publications by authors named "Van Dung Do"

Article Synopsis
  • The study investigates how daily rainfall characteristics—like intensity, duration, and frequency—affect mortality rates from all causes, cardiovascular issues, and respiratory problems across 34 countries from 1980 to 2020.
  • It utilizes a time series analysis to evaluate the association between daily mortality and rainfall events that occur at different return periods (one, two, and five years), including the effects of extreme rainfall with a 14-day lag.
  • The results indicate that extreme rainfall events (five-year return period) correlate with increased mortality rates, particularly for respiratory cases, while moderate rainfall shows protective effects, and the impact varies based on climate and vegetation.
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  • Temperature variability (TV), both intra-day and inter-day, impacts mortality rates, but this study found intra-day variation poses a higher risk to all-cause, cardiovascular, and respiratory mortality.
  • Analyzing data from 758 locations over nearly 50 years, the researchers discovered that each increase in intra-day TV correlates with a greater increase in mortality risk compared to inter-day TV.
  • The study recommends further evaluations of the impacts of temperature variability on health, particularly focusing on intra-day fluctuations, which accounted for more than four times the mortality risk compared to inter-day variability.
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Introduction: Methamphetamine use threatens positive treatment outcomes in substance use and HIV, for people with opioid use disorders (POUD) in many countries. This paper describes the adaptation of four evidence-based interventions (EBI) (motivational interviewing, contingency management, Matrix group model and SMS text messaging) for treating methamphetamine use among POUD receiving methadone maintenance therapy in Vietnam.

Methods: Following the ADAPT-ITT (Assessment-Decision-Administration-Production-Topical experts-Training-Testing) framework, we conducted 16 focus group discussions with POUD (n = 25) and providers (n = 22) at four methadone clinics in two largest cities (Hanoi in the North, Ho Chi Minh City in the South) to assess patterns of methamphetamine use and to get feedback on proposed EBIs.

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Background: The global spatiotemporal pattern of mortality risk and burden attributable to tropical cyclones is unclear. We aimed to evaluate the global short-term mortality risk and burden associated with tropical cyclones from 1980 to 2019.

Methods: The wind speed associated with cyclones from 1980 to 2019 was estimated globally through a parametric wind field model at a grid resolution of 0·5° × 0·5°.

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Context: Palliative care remains largely inaccessible in low- and middle-income countries (LMICs), and efforts to increase access are impeded by lack of training of proven effectiveness for physicians.

Objectives: To measure the effectiveness of palliative care training for Vietnamese physicians.

Methods: The palliative care-related knowledge, attitudes, and self-assessment of Vietnamese physicians were studied prior to a basic course in palliative care (baseline), just after the physicians completed the course (post), and 6-18 months later (follow-up).

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Background: Cardiovascular disease is the leading cause of death worldwide. Existing studies on the association between temperatures and cardiovascular deaths have been limited in geographic zones and have generally considered associations with total cardiovascular deaths rather than cause-specific cardiovascular deaths.

Methods: We used unified data collection protocols within the Multi-Country Multi-City Collaborative Network to assemble a database of daily counts of specific cardiovascular causes of death from 567 cities in 27 countries across 5 continents in overlapping periods ranging from 1979 to 2019.

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Article Synopsis
  • The study assessed the acceptance and experience of a pilot multiday take-home dose methadone program during COVID-19 in Vietnam, involving 502 patients from 10 randomly selected clinics.
  • Findings showed that 79.6% of patients found the program convenient, and 98.7% expressed interest in continuing it in the future.
  • The results indicated the program was feasible and well-received, ensuring consistent care for patients on Methadone Maintenance Treatment amid the pandemic.
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Background: Increased mortality risk is associated with short-term temperature variability. However, to our knowledge, there has been no comprehensive assessment of the temperature variability-related mortality burden worldwide. In this study, using data from the MCC Collaborative Research Network, we first explored the association between temperature variability and mortality across 43 countries or regions.

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Vietnam is highly vulnerable to climate change-related extreme weather events such as heatwaves. This study assesses the association between heatwaves and hospitalizations due to mental and behavioral disorders (MBDs) in Ho Chi Minh City (HCMC). We collected daily MBD hospital admissions data at the HCMC Mental Health Hospital from 2017 to 2019.

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Studies have investigated the effects of heat and temperature variability (TV) on mortality. However, few assessed whether TV modifies the heat-mortality association. Data on daily temperature and mortality in the warm season were collected from 717 locations across 36 countries.

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Background: Many regions of the world are now facing more frequent and unprecedentedly large wildfires. However, the association between wildfire-related PM and mortality has not been well characterised. We aimed to comprehensively assess the association between short-term exposure to wildfire-related PM and mortality across various regions of the world.

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The objective of this study was to determine the prevalence of amphetamine-type stimulant use and associated factors among methadone maintenance treatment (MMT) patients. In 2018, a cross-sectional study was conducted on 967 MMT patients at two methadone clinics in Ho Chi Minh City that serve Vietnamese patients. Amphetamine-type stimulant use was assessed by rapid urine test and face-to-face interview using the Alcohol, Smoking, Substance Involvement Screening Test (ASSIST) tool.

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High levels of air pollutants in Vietnam, especially particulate matters including PM, can be important risk factors for respiratory diseases among children of the country. However, few studies on the effects of ambient air pollution on human health have been conducted in Vietnam so far. The aim of this study is to examine the association between PM and hospital admission due to acute lower respiratory infection (ALRI) among children aged < 5 years old in Ho Chi Minh city, the largest city of Vietnam.

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Context: Palliative care is rarely accessible in low- and middle-income countries, and lack of adequate training for health care providers is a key reason. In Vietnam, the Ministry of Health, major hospitals and medical universities, and foreign physician-educators have partnered to initiate palliative care training for physicians.

Objectives: To measure the baseline palliative care-related knowledge, attitudes, and self-assessment of Vietnamese physicians as a basis for curriculum development and to enable evaluation of training courses.

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Background: The Ho-Chi-Minh-city Heart Institute in Vietnam took part in the Optimize Heart Failure (OHF) Care Program, designed to improve outcomes following heart failure (HF) hospitalization by increasing patient awareness and optimizing HF treatment.

Methods: HF patients hospitalized with left ventricular ejection-fraction (LVEF) <50% were included. Patients received guideline-recommended HF treatment and education.

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The Paris Agreement binds all nations to undertake ambitious efforts to combat climate change, with the commitment to Bhold warming well below 2 °C in global mean temperature (GMT), relative to pre-industrial levels, and to pursue efforts to limit warming to 1.5 °C". The 1.

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Background: Heatwaves are a critical public health problem. There will be an increase in the frequency and severity of heatwaves under changing climate. However, evidence about the impacts of climate change on heatwave-related mortality at a global scale is limited.

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Article Synopsis
  • * A study in urban Vietnam found a high pharmacy density, but only a small percentage of pharmacies sold antimicrobials for childhood diarrhea, as most caregivers preferred hospital treatment.
  • * Despite community access, hospital usage of antimicrobials was nearly 10 times higher, indicating a disconnect between community and hospital practices and underscoring the need for better education on antimicrobial prescribing.
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Article Synopsis
  • Climate change directly influences human health by altering exposure to extreme outdoor temperatures, but data on its global effects is limited due to complex modeling challenges.
  • Researchers analyzed mortality data and temperature records from 451 locations worldwide between 1984 and 2015 to establish temperature-related mortality relationships and predict future impacts under different climate scenarios.
  • Results showed an overall net increase in temperature-related excess mortality in high-emission scenarios, yet varying geographical effects, with some temperate regions experiencing negligible or negative net effects due to reduced cold-related deaths.
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Although diurnal temperature range (DTR) is a key index of climate change, few studies have reported the health burden of DTR and its temporal changes at a multi-country scale. Therefore, we assessed the attributable risk fraction of DTR on mortality and its temporal variations in a multi-country data set. We collected time-series data covering mortality and weather variables from 308 cities in 10 countries from 1972 to 2013.

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The Chi Linh Health and Demographic Surveillance System (CHILILAB HDSS) was established in 2004 in Chi Linh District, Hai Duong Province (Northern Vietnam). Up to 2013, 22 rounds of data collection at CHILILAB HDSS had been completed. This article reports the methods and key sociodemographic characteristics of households and individuals captured by the survey conducted among the subsamples of CHILILAB HDSS in 2016.

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Background: There is strong evidence that breastfeeding (BF) significantly benefits mothers and infants in various ways. Yet the proportion of breastfed babies in Vietnam is low and continues to decline. This study fills an important evidence gap in BF practices in Vietnam.

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Background: Since the beginning of 2014, there have been nearly 6,000 confirmed measles cases in northern Vietnam. Of these, more than 86% had neither been immunized nor was their vaccination status confirmed.

Objective: To establish the likelihood that children under five in Vietnam had 'timely immunization completion' (2000-2011) and identify factors that account for variations in timely immunization completion.

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