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Article

Quantification of the Effects of Droughts on Daily Mortality in Spain at Different Timescales at Regional and National Levels: A Meta-Analysis

1
EPhysLab (Environmental Physics Laboratory), CIM-UVIGO, Universidade de Vigo, 32004 Ourense, Spain
2
Department of Epidemiology and Biostatistics, Carlos III National Institute of Health (Instituto de Salud Carlos III/ISCIII), National School of Public Health, 28029 Madrid, Spain
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(17), 6114; https://doi.org/10.3390/ijerph17176114
Received: 13 July 2020 / Revised: 17 August 2020 / Accepted: 19 August 2020 / Published: 22 August 2020
(This article belongs to the Special Issue Human Health Implications of Droughts)
A performance assessment of two different indices (the Standardized Precipitation Index (SPI) and the Standardized Precipitation Evapotranspiration Index (SPEI)) for monitoring short-term and short–medium-term drought impacts on daily specific-cause mortality in Spain was conducted. To achieve a comprehensive, nationwide view, a meta-analysis was performed using a combination of provincial relative risks (RRs). Moreover, the subdivisions of Spain based on administrative, climatic, and demographic criteria to obtain the measures of combined risks were also taken into account. The results of the SPEI and SPI calculated at the same timescale were similar. Both showed that longer drought events produced greater RR values, for respiratory mortality. However, at the local administrative level, Galicia, Castilla-y-Leon, and Extremadura showed the greatest risk of daily mortality associated with drought episodes, with Andalucía, País Vasco, and other communities being notably impacted. Based on climatic regionalization, Northwest, Central, and Southern Spain were the regions most affected by different drought conditions for all analyzed causes of daily mortality, while the Mediterranean coastal region was less affected. Demographically, the regions with the highest proportion of people aged 65 years of age and over reflected the greatest risk of daily natural, circulatory, and respiratory mortality associated with drought episodes. View Full-Text
Keywords: drought; standardized precipitation evapotranspiration index; standardized precipitation index; meta-analysis; mortality; Spain drought; standardized precipitation evapotranspiration index; standardized precipitation index; meta-analysis; mortality; Spain
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MDPI and ACS Style

Salvador, C.; Nieto, R.; Linares, C.; Díaz, J.; Gimeno, L. Quantification of the Effects of Droughts on Daily Mortality in Spain at Different Timescales at Regional and National Levels: A Meta-Analysis. Int. J. Environ. Res. Public Health 2020, 17, 6114. https://doi.org/10.3390/ijerph17176114

AMA Style

Salvador C, Nieto R, Linares C, Díaz J, Gimeno L. Quantification of the Effects of Droughts on Daily Mortality in Spain at Different Timescales at Regional and National Levels: A Meta-Analysis. International Journal of Environmental Research and Public Health. 2020; 17(17):6114. https://doi.org/10.3390/ijerph17176114

Chicago/Turabian Style

Salvador, Coral, Raquel Nieto, Cristina Linares, Julio Díaz, and Luis Gimeno. 2020. "Quantification of the Effects of Droughts on Daily Mortality in Spain at Different Timescales at Regional and National Levels: A Meta-Analysis" International Journal of Environmental Research and Public Health 17, no. 17: 6114. https://doi.org/10.3390/ijerph17176114

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