Climate Change and Health: Consequences of High Temperatures among Vulnerable Groups in Finland

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Abstract

In this article, we examine the effects of high temperatures on hospital visits and mortality in Finland. This provides new information of the topic in a context of predominantly cool temperatures. Unique, individual-level data are used to examine the relationship at the municipality-month level over a span of 20 years. Linear regression methods alongside high-dimensional fixed effects are used to minimize confounding variation. Analysis is conducted with special emphasis on the elderly population, as well as on specific elderly risk groups identified in previous literature. We show that for an additional day per month above 25°C, monthly all-cause mortality increases by 1.5 percent (95% CI: 0.4%–2.6%) and acute hospital visits increase by 1.1 percent (95% CI: 0.7%–1.6%). We also find some evidence that these effects are elevated in selected population subgroups, the low-income elderly, and people with dementia. Hospital visits also increase among younger age groups, illustrating the importance of using multiple health indicators. Such detailed evidence is important for identifying vulnerable groups as extreme heat waves are expected to become more frequent and intense in northern countries.

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Astone, R., & Vaalavuo, M. (2023). Climate Change and Health: Consequences of High Temperatures among Vulnerable Groups in Finland. International Journal of Social Determinants of Health and Health Services, 53(1), 94–111. https://doi.org/10.1177/00207314221131208

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