Family history, for one thing. As found in prior general population
studies showing strong specific genetic risks for alcoholism21 and
among physicians surveyed for substance use,22 nearly
three fourths of these physicians had a family history of substance use disorder,
and this more than doubled the likelihood of a relapse (hazard ratio [HR],
2.29; 95% confidence interval [CI], l.44-3.64). The original primary agent
of abuse at the time of monitoring did not have an impact on relapse rates,
challenging prior assumptions about the elevated risk of opioid use, although
agreeing with more recent findings.23 Instead,
use of a major opioid increased relapse rates more than 5-fold but only in
physicians with a coexisting psychiatric disorder (HR, 5.79; 95% CI, 2.89-11.42).
More than a third of these physicians had a coexisting psychiatric disorder,
but only 7% had any personality disorder. In physicians with all 3 factors
(major opioid use, dual diagnosis, and family predisposition), the risk of
relapse was elevated 13-fold (HR, 13.3; 95% CI, 5.22-33.6).