The study predicts that as extreme temperatures rise, there will also be an increase in fatal strokes, with low-income countries likely to bear a “disproportionate burden”.
Previous studies on this topic have produced mixed results, often focusing on specific regions or not distinguishing between types of strokes. The Harvard study addressed these gaps using a massive database containing stroke mortality data from 25 countries and 522 cities.
The analysis found that for every 1,000 stroke deaths, about 11 were attributable to extreme weather conditions. Specifically, the coldest and warmest 2.5 percent of days were associated with the majority of these excess deaths.
The researchers suggest that factors such as better temperature control systems and lower levels of outdoor work in high-income countries may contribute to this difference. Potential limitations in the quality of healthcare in low-income countries may also be a factor.
The study underscores the need for further research into non-fatal strokes and the specific mechanisms responsible for the higher stroke burden in low-income countries.
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Source: Ferra
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