COIOSDeep risk insights through multi-disciplinary research across the globe
a car is parked on the side of the road
Item refines Peer-reviewed Added

US automotive plant closures were followed by more overdose deaths across drug classes

Automotive plant closures in 112 US counties were associated with 6.0 more overdose deaths per 100,000, across several drug classes.

This study revisited automotive plant closures in 112 manufacturing-intensive US counties from 1999 to 2016. It extended a 2020 opioid analysis to other drug classes, suicide and alcohol-related deaths. Staggered difference-in-differences and event-study models used restricted-use National Vital Statistics System mortality data and six socioeconomic measures. Closures were associated with 6.0 more overdose deaths per 100,000, including 7.9 more from opioids. Stimulant and benzodiazepine deaths each rose by 2.0 per 100,000, and labour-force non-participation by 1.7 percentage points. The design is observational and county-level, and an exploratory pathway analysis found no significant indirect associations.

Why it is interesting: The association with plant closures extends beyond opioids to stimulant and benzodiazepine deaths. An exploratory test found no significant indirect association through the measured socioeconomic conditions.

Source
International Journal of Drug Policy, 5 November 2026
Paper
Revisiting automotive plant closures and overdose mortality: Evidence across drug classes, deaths of despair, and socioeconomic pathways
Authors
Zhu DT
DOI
10.1016/j.drugpo.2026.105589
Type
Peer-reviewed article
Design
County-level quasi-experimental staggered difference-in-differences and event study; 112 manufacturing-intensive counties in 30 commuting zones, 1999-2016, restricted-use NVSS mortality
Verdict
Refines prior evidence
Driver
Alcohol and drug use
Driver
What linked data reveals

Other drivers in Behavioural science