Chris Fook Sheng Ng
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View article: The association between total precipitation and diarrhea morbidity: A multicountry study across diverse climate zones
The association between total precipitation and diarrhea morbidity: A multicountry study across diverse climate zones Open
Background: Although substantial evidence has shown that precipitation is associated with diarrhea in low- and middle-income countries, few multicountry studies have focused on middle- and high-income countries to comprehensively explore t…
View article: Climate change and human adaptability: an integrated framework for historical insights and future capacity in Japan
Climate change and human adaptability: an integrated framework for historical insights and future capacity in Japan Open
Despite substantial evidence on temporal variations in temperature-mortality associations, the historical pace (direction and magnitude) of adaptation to climate change remains unclear. We employed a novel integrated framework to investiga…
View article: Determining Location-Specific Thresholds for Heat Warning Systems to Mitigate Heatstroke Mortality in Japan
Determining Location-Specific Thresholds for Heat Warning Systems to Mitigate Heatstroke Mortality in Japan Open
View article: Associations of ambient exposure to benzene, toluene, ethylbenzene, and xylene with daily mortality: a multicountry time-series study in 757 global locations
Associations of ambient exposure to benzene, toluene, ethylbenzene, and xylene with daily mortality: a multicountry time-series study in 757 global locations Open
Noncommunicable Chronic Diseases-National Science and Technology Major Project, National Natural Science Foundation of China, Shanghai Municipal Science and Technology Major Project, Shanghai B&R Joint Laboratory Project, and Shanghai Inte…
View article: Confounding mechanisms and adjustment strategies in air pollution epidemiology: a case study assessment with the UK Biobank cohort
Confounding mechanisms and adjustment strategies in air pollution epidemiology: a case study assessment with the UK Biobank cohort Open
Background Cohort studies are instrumental in examining long-term risks associated with environmental exposures but require appropriate control for various confounding effects. In this contribution, we assessed this issue by investigating …
View article: Correction: Reconstructing individual-level exposures in cohort analyses of environmental risks: an example with the UK Biobank
Correction: Reconstructing individual-level exposures in cohort analyses of environmental risks: an example with the UK Biobank Open
View article: Multi-country multi-city study on heterogeneous impacts of urbanicity on heat-related mortality
Multi-country multi-city study on heterogeneous impacts of urbanicity on heat-related mortality Open
Urbanicity might have complicated impacts on heat-related mortality, intertwined with national and regional context; however, the relevant evidence is limited. This multi-country study investigated the complex roles of urbanicity on heat-r…
View article: Comparing Integrated Heat Stress Indicators With Raw Meteorological Variables in Predicting Heat Stroke‐Related Ambulance Transportations in Japan
Comparing Integrated Heat Stress Indicators With Raw Meteorological Variables in Predicting Heat Stroke‐Related Ambulance Transportations in Japan Open
The increasing threat of heat stress poses significant risks to human health globally. To quantify heat exposure more effectively, integrated heat stress indicators (HSIs) have been developed to simplify the classification of heat stress s…
View article: Toward a Cohort Perspective of Climate Epidemiology: The Case of Examining Intergenerational Inequalities in Susceptibility to Non-Optimal Temperatures in Japan
Toward a Cohort Perspective of Climate Epidemiology: The Case of Examining Intergenerational Inequalities in Susceptibility to Non-Optimal Temperatures in Japan Open
This nationwide, individual-level study adopted a novel cohort perspective to investigate how population susceptibility to short-term non-optimal temperature exposure varies across generations. Our findings revealed disparities in suscepti…
View article: A scoping review and thematic analysis of the effects of tropical cyclones on diarrheal diseases
A scoping review and thematic analysis of the effects of tropical cyclones on diarrheal diseases Open
Background: Tropical cyclones pose significant health risks and can trigger outbreaks of diarrheal diseases in affected populations. Although the effects of individual hazards, such as rainfall and flooding, on diarrheal diseases are well-…
View article: The Effect of Diurnal Temperature Range on Mortality and Morbidity in Japan, 2015-2019
The Effect of Diurnal Temperature Range on Mortality and Morbidity in Japan, 2015-2019 Open
View article: Excess mortality during and after the COVID-19 emergency in Japan: a two-stage interrupted time-series design
Excess mortality during and after the COVID-19 emergency in Japan: a two-stage interrupted time-series design Open
Background The COVID-19 pandemic has had unprecedented impacts on mortality worldwide. This study aimed to estimate excess all-cause mortality in Japan from 2020 to 2023, stratified by age, sex and prefecture, to assess the evolving impact…
View article: Temporal Trends in Late-pregnancy Exposure to Ambient Temperature and Risk of Preterm Birth in Japan, a Nationwide Study From 1979–2023
Temporal Trends in Late-pregnancy Exposure to Ambient Temperature and Risk of Preterm Birth in Japan, a Nationwide Study From 1979–2023 Open
View article: Meteorological factors, population immunity, and COVID-19 incidence: A global multi-city analysis
Meteorological factors, population immunity, and COVID-19 incidence: A global multi-city analysis Open
Objectives: While COVID-19 continues to challenge the world, meteorological variables are thought to impact COVID-19 transmission. Previous studies showed evidence of negative associations between high temperature and absolute humidity on …
View article: Long-term Associations Between Time-varying Exposure to Ambient PM2.5 and Mortality: An Analysis of the UK Biobank
Long-term Associations Between Time-varying Exposure to Ambient PM2.5 and Mortality: An Analysis of the UK Biobank Open
Background: Evidence for long-term mortality risks of PM 2.5 comes mostly from large administrative studies with incomplete individual information and limited exposure definitions. Here we assess PM 2.5 –mortality associations in the UK Bi…
View article: Short-term associations of diarrhoeal diseases in children with temperature and precipitation in seven low- and middle-income countries from Sub-Saharan Africa and South Asia in the Global Enteric Multicenter Study
Short-term associations of diarrhoeal diseases in children with temperature and precipitation in seven low- and middle-income countries from Sub-Saharan Africa and South Asia in the Global Enteric Multicenter Study Open
Background Diarrhoeal diseases cause a heavy burden in developing countries. Although studies have described the seasonality of diarrhoeal diseases, the association of weather variables with diarrhoeal diseases has not been well characteri…
View article: Non-optimal temperature-attributable mortality and morbidity burden by cause, age and sex under climate and population change scenarios: a nationwide modelling study in Japan
Non-optimal temperature-attributable mortality and morbidity burden by cause, age and sex under climate and population change scenarios: a nationwide modelling study in Japan Open
Japan Science and Technology Agency and Environmental Restoration and Conservation Agency and Ministry of the Environment of Japan.
View article: Association between long-term exposure to low ambient PM2.5 and cardiovascular hospital admissions: A UK Biobank study
Association between long-term exposure to low ambient PM2.5 and cardiovascular hospital admissions: A UK Biobank study Open
View article: Temporal variations in the short-term effects of ambient air pollution on cardiovascular and respiratory mortality: a pooled analysis of 380 urban areas over a 22-year period
Temporal variations in the short-term effects of ambient air pollution on cardiovascular and respiratory mortality: a pooled analysis of 380 urban areas over a 22-year period Open
View article: Lifestyle Differences in the Metabolic Comorbidity Score of Adult Population From South Asian Countries: A Cross-Sectional Study
Lifestyle Differences in the Metabolic Comorbidity Score of Adult Population From South Asian Countries: A Cross-Sectional Study Open
One third of South Asian adults had higher metabolic comorbidity score. Physical inactivity, daily sedentary hours, and minimal alcohol consumption were associated with higher metabolic comorbidity score.
View article: Confounding in long-term air pollution epidemiology: a UK Biobank study
Confounding in long-term air pollution epidemiology: a UK Biobank study Open
View article: Regional variation in the role of humidity on city-level heat-related mortality
Regional variation in the role of humidity on city-level heat-related mortality Open
The rising humid heat is regarded as a severe threat to human survivability, but the proper integration of humid heat into heat-health alerts is still being explored. Using state-of-the-art epidemiological and climatological datasets, we e…
View article: Association between precipitation and mortality due to diarrheal diseases by climate zone: A multi-country modeling study
Association between precipitation and mortality due to diarrheal diseases by climate zone: A multi-country modeling study Open
Background: Precipitation could affect the transmission of diarrheal diseases. The diverse precipitation patterns across different climates might influence the degree of diarrheal risk from precipitation. This study determined the associat…
View article: Compilation of open access time-series datasets for studying temperature-mortality association
Compilation of open access time-series datasets for studying temperature-mortality association Open
View article: Correction: Unique characteristics of new complete blood count parameters, the Immature Platelet Fraction and the Immature Platelet Fraction Count, in dengue patients
Correction: Unique characteristics of new complete blood count parameters, the Immature Platelet Fraction and the Immature Platelet Fraction Count, in dengue patients Open
[This corrects the article DOI: 10.1371/journal.pone.0258936.].
View article: A Scoping Review and Thematic Analysis of the Effects of Tropical Cyclones on Diarrheal Diseases
A Scoping Review and Thematic Analysis of the Effects of Tropical Cyclones on Diarrheal Diseases Open
Tropical cyclones bring health risks and can trigger outbreaks of diarrheal diseases in affected populations. There are several reviews that mention the relationship between tropical cyclones and diarrheal diseases. However, there is no de…
View article: Evaluating Japan’s revised heat-health warning system in the face of recent escalating heat stress
Evaluating Japan’s revised heat-health warning system in the face of recent escalating heat stress Open
In 2021, the Japanese government changed the exposure indicator of the national heat-health warning system (HHWS) from air temperature ( T air ) to Wet Bulb Globe Temperature ( T WBG ), reflecting the growing concerns about the escalating …
View article: A comprehensive assessment of deworming coverage among pregnant women in low- and middle-income countries, 2000–30
A comprehensive assessment of deworming coverage among pregnant women in low- and middle-income countries, 2000–30 Open
The progress on deworming coverage and inequality in many countries remains insufficient for achieving the WHO target by 2030. Additional investments in the health sector towards the expansion of deworming programmes, along with integratio…
View article: A novel measure of time series data pattern based on persistent homology that can detect the trend change of the daily all-cause mortality in Tokyo after the temperature rise
A novel measure of time series data pattern based on persistent homology that can detect the trend change of the daily all-cause mortality in Tokyo after the temperature rise Open
Background : Evaluating the effect of temperature rise on mortality has been an important theme in environmental epidemiology. However, few studies examine the problem: ''Are there any differences in the mortality data pattern between rece…
View article: Heat-related mortality and ambulance transport after a power outage in the Tokyo metropolitan area
Heat-related mortality and ambulance transport after a power outage in the Tokyo metropolitan area Open
Background: Air conditioners can prevent heat-related illness and mortality, but the increased use of air conditioners may enhance susceptibility to heat-related illnesses during large-scale power failures. Here, we examined the risks of h…