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. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: Drug Alcohol Depend. 2021 Jun 25;226:108884. doi: 10.1016/j.drugalcdep.2021.108884

Table 1.

Sample Characteristics: Pre-treatment and EMA Variables (n = 211)

Pre-treatment Variables Intra Treatment Variables
Variable Mean (SD) n (%) Variable Mean (SD)
Demographics Medication
 Age 43.35 (9.57)  Methadone – n (%) 99 (47)
 Male 164 (78) Time in Study
 Non-white 144 (69)  Days in Study 96.98 (23.14)
 Employed 153 (73) Drug use During Study
Drug use history  Any Drug Use 0.27 (0.22)
 Alcohol use (past 30 days) 4.84 (7.47)  Heroin Use 0.14 (0.17)
 Heroin use (past 30 days) 19.75 (11.75)  Other Opioid Use 0.02 (0.04)
 Other opioid use (past 30 days) 7.83 (10.40)  Any Opioid Use 0.15 (0.17)
 Cocaine use (past 30 days) 4.18 (8.10)  Cocaine Use 0.11 (0.16)
 Cannabis use (past 30 days) 3.27 (7.80)  Cannabis Use 0.07 (0.17)
 Polysubstance use (past 30 days) 10.07 (10.51)  Alcohol Use 0.05 (0.10)
 Longest period of abstinence (months) 12.74 (25.49) Cue-Exposure & Stress
 Time since most recent abstinence (months) 27.73 (43.41)  Drug Cue Exposure 0.89 (0.87)
 Money on drugs (past 30 days) 994.46 (1198.97)  Stress Events 0.13 (0.23)
Legal problems  Drug use with others 0.10 (0.12)
 Arrested and charged (lifetime) 7.56 (11.40)
 Months incarcerated (lifetime) 38.04 (56.32) Completion and Dropout Numbers
 Illegal Activities for $ (past 30 d) 4.69 (9.60) Dropout Category n (%)
Physical, Psych., & Social Health  Completed 147 (70)
 Medical Problems (past 30 days) 1.07 (4.80)  Dropout: Incarcerated 5 (2)
 Bothered by psychological problems (past 30 days) 0.21 (0.76)  Dropout: Medical discharge 2 (1)
 Mental health problems (lifetime) 0.59 (0.98)  Dropout: Transferred to another clinic 15 (7)
 Number of close friends 2.67 (2.78)  Dropout: Non-compliant EMA 8 (4)
 Serious conflict with family (past 30 days) 0.93 (4.05)  Dropout: Other 34 (16)

Note. “Dropout: Non-compliant EMA” includes participants who were non-compliant with the pre-specified EMA procedures. “Dropout: Other” includes participants who got a job, were expelled due to diversion, moved to another state or region outside of study boundaries, or experienced some other life event that disrupted their ability to participate in the study.