Drug and alcohol dependence · 2026
Temperature exposure and fatal overdose.
СтатьяНазвание и аннотация: Перевод в очереди
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Lu Thanh T, Maclean Johanna Catherine, Aldridge Arnie, Zarkin Gary A
Аннотация
AIMS: Climate change poses many threats, such as increased risks of hot or cold weather events to the health and well-being of Americans. Previous studies examined relationships between temperature exposure and physical or mental health. This study examined whether temperature exposure was associated with increased drug overdoses.
METHODS: We examined whether temperature exposure was associated with fatal overdoses using state-by-year and county-by-month fixed effect linear regressions. Using the 1999-2021 Multiple Causes of Deaths, we constructed the outcome variable as fatal overdose per 100,000 people. Obtaining temperature data from the National Oceanic and Atmospheric Administration Global Historical Climatology Network, we created the independent variables as counts of days for which a given county had a maximum temperature in each category (10°F-wide categories from <30°F to >90°F) in each month.
RESULTS: We found that temperature exposure was associated with increased fatal overdose rate. Relative to 70-80°F, one day above 90°F was associated with an annual increase of 0.2% (p = 0.002) fatal overdoses rate. We also observed that fatal overdose rate increased as temperatures dropped, ranging between 0.12% and 0.34% (p < 0.05). When stratifying the sample by drug types, we observed that the associations were driven by fatal overdoses involving opioids (at low temperatures) and stimulants (at extreme temperatures).
CONCLUSIONS: This study found that temperature exposure was associated with increased fatal overdose rate at both low and high temperatures. Future studies may examine whether the underlying populations affected by temperature (e.g., homeless) and potential mechanisms (e.g., changes in physiological response) would be important to design effective policies.
METHODS: We examined whether temperature exposure was associated with fatal overdoses using state-by-year and county-by-month fixed effect linear regressions. Using the 1999-2021 Multiple Causes of Deaths, we constructed the outcome variable as fatal overdose per 100,000 people. Obtaining temperature data from the National Oceanic and Atmospheric Administration Global Historical Climatology Network, we created the independent variables as counts of days for which a given county had a maximum temperature in each category (10°F-wide categories from <30°F to >90°F) in each month.
RESULTS: We found that temperature exposure was associated with increased fatal overdose rate. Relative to 70-80°F, one day above 90°F was associated with an annual increase of 0.2% (p = 0.002) fatal overdoses rate. We also observed that fatal overdose rate increased as temperatures dropped, ranging between 0.12% and 0.34% (p < 0.05). When stratifying the sample by drug types, we observed that the associations were driven by fatal overdoses involving opioids (at low temperatures) and stimulants (at extreme temperatures).
CONCLUSIONS: This study found that temperature exposure was associated with increased fatal overdose rate at both low and high temperatures. Future studies may examine whether the underlying populations affected by temperature (e.g., homeless) and potential mechanisms (e.g., changes in physiological response) would be important to design effective policies.