* Early_Alterations -> Whether patients have used drugs before the age of 11.
* Social Inclusion -> Living Situation. One-hot encoded into:
* SocInc_Family_Friends
* SocInc_Alone
* SocInc_Instit
* Risk_Stigma
* Structural_Conflict
* Risk_Stigma -> Whether patients have potentially suffered social discrimination based on their status of having AIDS, hepatitis C, being injection drug users, or being women.
* Structural_Conflict -> Household income in the area where the outpatient treatment center is located.