Table 2.

Comparison of baseline social characteristics, substance use disorders and psychiatric co-morbidities of jail detainees who completed study and who were lost to follow-up

	Completed follow-up (N = 583) N (%)	Lost to follow-up (N = 449) N (%)	p value
Social Characteristics
Homelessness	188 (32.4%)	184 (41.1%)	< 0.01
Has insurance	467 (80.2%)	307 (68.7%)	< 0.001
Substance Use
Cocaine use in the 30 days prior to incarceration	279 (47.9%)	226 (50.3%)	ns
Opioid use in the 30 days prior to incarceration	150 (25.7%)	109 (24.3%)	ns
Mean ASI Score - Drugs (SD)	0.22 (0.28)	0.22 (0.18)	ns
Mean ASI Score - Alcohol (SD)	0.23 (0.63)	0.25 (0.63)	ns
High drug use severity (ASI > 0.16)	291 (53.0%)	240 (57.3%)	ns
High alcohol use severity (ASI > 0.17)	190 (33.3%)	154 (35.6%)	ns
Psychiatric Co-morbidities
Experienced mental illness (30 days pre-incarceration)	364 (62.4%)	325 (72.4%)	< 0.001
Inpatient treatment for psychiatric illness	186 (31.9%)	155 (34.5%)	ns
Outpatient treatment for psychiatric illness	153 (26.2%)	128 (28.5%)	ns
Psychiatric Co-morbidities
Mean ASI Score - Psychiatric (SD)	0.28 (0.31)	0.32 (0.30)	ns
High severity of psychiatric illness (ASI > 0.22)	289 (50.2%)	242 (55.5%)	ns

Opioid use is defined as having either used heroin or other opiates/analgesics/painkillers.

Abbreviations: ASI = Addiction Severity Index; SD = Standard Deviation; ns = Not Significant