Hot and cold weather based on the spatial synoptic classification and cause-specific mortality in Sweden: a time-stratified case-crossover study

The spatial synoptic classification (SSC) is a holistic categorical assessment of the daily weather conditions at specific locations; it is a useful tool for assessing weather effects on health. In this study, we assessed (a) the effect of hot weather types and the duration of heat events on cardiov...

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Bibliographic Details
Published in:International journal of biometeorology Vol. 64; no. 9; pp. 1435 - 1449
Main Authors: Fonseca-Rodríguez, Osvaldo, Sheridan, Scott C., Lundevaller, Erling Häggström, Schumann, Barbara
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.09.2020
Springer Nature B.V
Subjects:
Animal Physiology
Arctic zone
bioclimatology
Biological and Medical Physics
Biophysics
Cardiovascular diseases
Cardiovascular mortality
Classification
Cold
Cold effects
Cold regions
Cold weather
Daily weather
Earth and Environmental Science
Environment
Environmental Health
environmental science
epidemiologi
Epidemiology
Heat
Hot weather
Ice environments
Meteorology
miljövetenskap
Mortality
nonlinear models
Original Paper
Plant Physiology
Respiratory diseases
Respiratory mortality
Spatial synoptic classification
Summer
Sweden
Weather
Weather conditions
Weather effects
Weather types
Winter
Sweden
Cold weather
Sweden
Spatial synoptic classification
Respiratory mortality
Cardiovascular mortality
Hot weather
ISSN:0020-7128, 1432-1254, 1432-1254
Online Access:Get full text
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Summary:The spatial synoptic classification (SSC) is a holistic categorical assessment of the daily weather conditions at specific locations; it is a useful tool for assessing weather effects on health. In this study, we assessed (a) the effect of hot weather types and the duration of heat events on cardiovascular and respiratory mortality in summer and (b) the effect of cold weather types and the duration of cold events on cardiovascular and respiratory mortality in winter. A time-stratified case-crossover design combined with a distributed lag nonlinear model was carried out to investigate the association of weather types with cause-specific mortality in two southern (Skåne and Stockholm) and two northern (Jämtland and Västerbotten) locations in Sweden. During summer, in the southern locations, the Moist Tropical (MT) and Dry Tropical (DT) weather types increased cardiovascular and respiratory mortality at shorter lags; both hot weather types substantially increased respiratory mortality mainly in Skåne. The impact of heat events on mortality by cardiovascular and respiratory diseases was more important in the southern than in the northern locations at lag 0. The cumulative effect of MT, DT and heat events lagged over 14 days was particularly high for respiratory mortality in all locations except in Jämtland, though these did not show a clear effect on cardiovascular mortality. During winter, the dry polar and moist polar weather types and cold events showed a negligible effect on cardiovascular and respiratory mortality. This study provides valuable information about the relationship between hot oppressive weather types with cause-specific mortality; however, the cold weather types may not capture sufficiently effects on cause-specific mortality in this sub-Arctic region.
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ISSN:0020-7128
1432-1254
1432-1254
DOI:10.1007/s00484-020-01921-0