Nicolás Valdés Ortega

Datos Biográficos

ID6823696
NOMBRENicolás Valdés Ortega
NOMBRESNicolás Valdés
APELLIDOOrtega
FIRMAORTEGA N V
AFILIACIONESUniversidad de Los Andes, Chile
ORCID0000-0001-7609-4291
VERIFICADOSí
TOTAL DE OBRAS8
TOTAL DE CITAS0
TOTAL COMO AUTOR8
TOTAL COMO EDITOR0
PRIMER AÑO DE PUBLICACIÓN2017
AÑO MÁS RECIENTE DE PUBLICACIÓN2026
ÍNDICE H0

  • Association of mortality and combined oxidative capacity of ozone and nitrogen dioxide

    Open AccessYue Niu, Renjie Chen et al.ARTICLENature Sustainability2026

  • Associations of ambient exposure to benzene, toluene, ethylbenzene, and xylene with daily mortality

    Open AccessLu Zhou, Xiong Ying et al.ARTICLEThe Lancet Planetary Health2025

  • Global, regional, and national burden of mortality associated with non-optimal ambient temperatures from 2000 to 2019

    Open AccessQi Zhao, Yuming Guo et al.ARTICLEThe Lancet Planetary Health2021

    BACKGROUND: Exposure to cold or hot temperatures is associated with premature deaths. We aimed to evaluate the global, regional, and national mortality burden associated with non-optimal ambient temperatures. METHODS: In this modelling study, we collected time-series data on mortality and ambient temperatures from 750 locations in 43 countries and five meta-predictors at a grid size of 0·5° × 0·5° across the globe. A three-stage analysis strategy…

  • The burden of heat-related mortality attributable to recent human-induced climate change

    Open AccessAna M Vicedo‐Cabrera, Noah Scovronick et al.ARTICLENature Climate Change2021

    Climate change affects human health; however, there have been no large-scale, systematic efforts to quantify the heat-related human health impacts that have already occurred due to climate change. Here, we use empirical data from 732 locations in 43 countries to estimate the mortality burdens associated with the additional heat exposure that has resulted from recent human-induced warming, during the period 1991-2018. Across all study countries, w…

  • Ambient Particulate Air Pollution and Daily Mortality in 652 Cities

    Open AccessCong Liu, Renjie Chen et al.ARTICLENew England Journal of Medicine2019

    BACKGROUND: The systematic evaluation of the results of time-series studies of air pollution is challenged by differences in model specification and publication bias. METHODS: ) with daily all-cause, cardiovascular, and respiratory mortality across multiple countries or regions. Daily data on mortality and air pollution were collected from 652 cities in 24 countries or regions. We used overdispersed generalized additive models with random-effects…

  • Impacto de los programas de salud ERA y GES en la mortalidad por neumonía adquirida en la comunidad en personas de 65 años o más en Chile

    Open AccessJosé Tomás Valdés, José Tomás Lizana Valdés et al.ARTICLERevista Panamericana de Salud…2019

    Objetivo. Evaluar el impacto del Programa de Enfermedades Respiratorias del Adulto (ERA) y el Régimen General de Garantías Explícitas en Salud (GES) en la mortalidad por neumonía adquirida en la comunidad (NAC) en personas de 65 años o más en Chile. Métodos. En este estudio ecológico se calcularon las tasas anuales y trimestrales de mortalidad por NAC en personas de 65 a 79 años y de 80 años o más entre 1990 y 2014. Las fuentes de información fue…

  • Quantifying excess deaths related to heatwaves under climate change scenarios

    Open AccessYuming Guo, Antonio Gasparrini et al.ARTICLEPLoS Medicine2018

    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. METHODS AND FINDINGS: We collected historical daily time series of mean temperature and mortality for all causes or nonexternal causes, in periods ranging from January 1, 1984, to Dec…

  • Projections of temperature-related excess mortality under climate change scenarios

    Open AccessAntonio Gasparrini, Yuming Guo et al.ARTICLEThe Lancet Planetary Health2017

    BACKGROUND: Climate change can directly affect human health by varying exposure to non-optimal outdoor temperature. However, evidence on this direct impact at a global scale is limited, mainly due to issues in modelling and projecting complex and highly heterogeneous epidemiological relationships across different populations and climates. METHODS: We collected observed daily time series of mean temperature and mortality counts for all causes or n…