Publications by authors named "Mathilde Pascal"

Background: The rise in hot nights over recent decades and projections of further increases due to climate change underscores the critical need to understand their impact. This knowledge is essential for shaping public health strategies and guiding adaptation efforts. Despite their significance, research on the implications of hot nights remains limited.

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Background: Heat exposure poses a substantial public health threat. Increasing greenness has been suggested as a mitigation strategy due to its cooling effect and potential to modify the heat-mortality association. This study aimed to comprehensively estimate the effects of increased greenness on heat-related deaths.

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Heat exposure in pregnancy has been associated with mother-child health. However, characterization of exposure to heat in pregnant women and its associated factors, such as air pollution, vegetation or social stressors, is lacking. We aimed to describe heat exposure according to air pollution and vegetation co-exposures, individual social position and socio-economic context of residence among French pregnant women.

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Aims: To explore associations between the axonal protein neurofilament light chain (NfL) and severity of diabetic polyneuropathy (DPN) and pain.

Methods: We performed cross-sectional analysis of a subset of the PiNS/DOLORisk cohort of people with DPN with and without neuropathic pain. Biobank samples were analyzed for serum NfL (s-NfL) using single molecule array.

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The year 2023 was the warmest year in the 174-year global instrumental record. The year was also marked by a series of climate-related extreme events, including heat waves, storms, and wildfires that caused widespread economic and health impacts. The 28th Conference of the Parties of the United Nations Framework Convention on Climate Change called for transitioning away from fossil fuels and accelerating action in this critical decade.

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Background: The minimum mortality temperature (MMT) or MMT percentile (MMTP) is an indicator of population susceptibility to nonoptimum temperatures. MMT and MMTP change over time; however, the changing directions show region-wide heterogeneity. We examined the heterogeneity of temporal changes in MMT and MMTP across multiple communities and in multiple countries.

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Article Synopsis
  • The study explored genetic links to neuropathic pain by comparing individuals with the condition to those who had injuries but did not experience neuropathic pain.
  • Key findings included significant associations with the KCNT2 gene and pain intensity, as well as other genes like LHX8 and TCF7L2 connected to neuropathic pain.
  • The research also highlighted the influence of polygenic risk scores related to depression and inflammation on neuropathic pain, while discovering novel genetic variants tied to specific sensory profiles.
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Background: We quantify the mortality burden and economic loss attributable to nonoptimal temperatures for cold and heat in the Central and South American countries in the Multi-City Multi-Country (MCC) Collaborative Research Network.

Methods: We collected data for 66 locations from 13 countries in Central and South America to estimate location-specific temperature-mortality associations using time-series regression with distributed lag nonlinear models. We calculated the attributable deaths for cold and heat as the 2.

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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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Background: Heterogeneity in temperature-mortality relationships across locations may partly result from differences in the demographic structure of populations and their cause-specific vulnerabilities. Here we conduct the largest epidemiological study to date on the association between ambient temperature and mortality by age and cause using data from 532 cities in 33 countries.

Methods: We collected daily temperature and mortality data from each country.

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Adaptation to heat is a major challenge for the Paris region (France). Based on fine-scale data for the 1,287 municipalities of the region over 2000-2017, we analyzed (time-serie design) the temperature-mortality relationship by territories (urban, suburban, rural), age (15-64 and ≥ 65) and sex, and explored how it was modified by vegetation and socio-economic indicators. Heat was associated with an increased mortality risk for all territories, age groups, sex, and mortality causes.

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Article Synopsis
  • The study investigates the reasons behind why some patients experience painful polyneuropathy while others do not, utilizing data from 1181 patients in the DOLORISK database.
  • Researchers used multivariate logistic regression and machine learning to identify key factors related to painful neuropathy, including severity of neuropathy, family history of chronic pain, fatigue, depression scores, and pain-related worrying.
  • The findings suggest that emotional and clinical factors play a significant role in the development of painful neuropathy, with predictive models achieving over 76% accuracy, which could help in identifying patients at risk in the future.
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Background: The regional disparity of heatwave-related mortality over a long period has not been sufficiently assessed across the globe, impeding the localisation of adaptation planning and risk management towards climate change. We quantified the global mortality burden associated with heatwaves at a spatial resolution of 0.5°×0.

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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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Short-term exposure to ground-level ozone in cities is associated with increased mortality and is expected to worsen with climate and emission changes. However, no study has yet comprehensively assessed future ozone-related acute mortality across diverse geographic areas, various climate scenarios, and using CMIP6 multi-model ensembles, limiting our knowledge on future changes in global ozone-related acute mortality and our ability to design targeted health policies. Here, we combine CMIP6 simulations and epidemiological data from 406 cities in 20 countries or regions.

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Background: Exposure to cold spells is associated with mortality. However, little is known about the global mortality burden of cold spells.

Methods: A three-stage meta-analytical method was used to estimate the global mortality burden associated with cold spells by means of a time series dataset of 1960 locations across 59 countries (or regions).

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Background: Cumulative environmental exposures and social deprivation increase health vulnerability and limit the capacity of populations to adapt to climate change.

Objective: Our study aimed at providing a fine-scale characterization of exposure to heat, air pollution, and lack of vegetation in continental France between 2000 and 2018, describing spatiotemporal trends and environmental hotspots (i.e.

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Chronic pain (CP) is a common and often debilitating disorder that has major social and economic impacts. A subset of patients develop CP that significantly interferes with their activities of daily living and requires a high level of healthcare support. The challenge for treating physicians is in preventing the onset of refractory CP or effectively managing existing pain.

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Background: The epidemiological evidence on the interaction between heat and ambient air pollution on mortality is still inconsistent.

Objectives: To investigate the interaction between heat and ambient air pollution on daily mortality in a large dataset of 620 cities from 36 countries.

Methods: We used daily data on all-cause mortality, air temperature, particulate matter ≤ 10 μm (PM), PM ≤ 2.

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Objective: To investigate potential interactive effects of fine particulate matter (PM) and ozone (O) on daily mortality at global level.

Design: Two stage time series analysis.

Setting: 372 cities across 19 countries and regions.

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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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Article Synopsis
  • * Of the participants, 51.1% reported chronic pain, with NeuP specifically affecting 9.2% of them, and it was linked to worse quality of life, younger age, and certain occupations.
  • * The findings indicate that NeuP is a common disorder among middle- to older-aged individuals, associated with various pain types and conditions, and has a greater health impact compared to non-neuropathic pain.
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