Most recent studies indicate that this “deaths of despair” model may only be significant for the more recent phase of opioid overdoses that stem from illicit drugs like heroin and fentanyl.
Mortality data indicate that the earlier “prescription opioid phase,” from about 2000 to 2011, most affected adults in the age range of 25-54, Native American/Alaskan Natives and Whites, and rural more than urban populations. In this phase, the epidemic was most severe in areas of high physical disability rates, which, following epidemiological research, we use as an indicator of physical pain. We found little evidence that local economic misfortune accounted for the substantial geographic differences in the severity of this phase across State rural areas or counties. https://www.ers.usda.gov/webdocs/publications/100833/err-287.pdf?v=1708
In short, from 2000-2011 large numbers of patients were prescribed opioids for pain relief and this led to an increase in opioid deaths that did not correlate with local economic conditions.
The problem is that opioids are problematic for long-term pain because of physiological tolerance (larger doses required over time) and its addictive potential. This is what drove the initial rise of addiction from prescription drugs. From the linked paper:
“We found the geography of the prescription painkiller phase of the opioid epidemic during the 2000s to be largely shaped by State rural area and county differences in physical disability rates, which we took to be a measure of the prevalence of chronic pain. Whatever difficulties physical disability entails, the prescription phase brought more difficulties, as addiction grew and prescriptions proved eventually unable to quell the pain, resulting in rising opioid deaths.”
Heroin and synthetics like fentanyl are impacting a different demographic than the prescription drugs, and there is some evidence to suggest the impact of economic difficulties. However, the most recent and detailed studies indicate that the primary driver of opioid addiction is drug availability rather than despair. Or as the linked paper concludes:
> "There is no doubt that the economic trends over the past 20 years have placed tremendous stress on the prime-working-age population whose schooling did not extend beyond high school. But the rises in drug overdose mortality that have characterized, first, the prescription opioid phase of the epidemic and, more recently, the illicit opioid phase, seem to have reflected more the increasing availability of more dangerous opioids than growing stress or despair"