Originally, it was a racial disparity study.
The bubble plot shows that socio-economic status distributes disproportionally among races.
So do health status and health service use for mental health and alcohol/drug use problems.
Results of logistic regression with multinomial outcome (the reference level is no treatment, the 1st level is treatment for MDE, and the 2nd level is treatment for alcohol/drug use problems. The analysis was carried among a subpopulation with past-year alcohol/drug abuse or dependence.
The odds of being treated for alcohol/drug use problems is lower among those with family income at $20,000 - $39,999, which is 0.72 times of the odds among those with family income ranged from $40,000 to $74,999, even when other factors are held constant.
Insurance factor is related to treatment received after adjusting for confounding factors. The odds of being treated for MDE among those without any insurance coverage is 0.69 times of the odds among those with other insurance coverage than Medicaid and Medicare.