Age (BIQ, intake, participant)
Sex (BIQ, intake, participant)
Ethnicity (BIQ, intake, participant)
Race (BIQ, intake, participant)
Marital status (BIQ, intake, participant)
Number of marriages (BIQ, intake, participant)
Years of school (BIQ, intake, participant)
Annual household income (BIQ, intake, participant)
Employed (BIQ, intake, participant)
Occupation (BIQ, intake, participant)
Source of income (BIQ, intake, participant)
Major health problems (BIQ, intake, participant)
Current medications (BIQ, intake, participant)