Table 4.

Multiple Regression Predictors of Suicidal Ideation and Suicide Attempt

Baseline Variable12-Month SI12-Month SA
OR95% CIP ValueOR95% CIP Value
Age1.020.82–1.26.850.770.54–1.11.16
Female sex0.820.54–1.24.341.500.76–2.96.25
African American0.850.54–1.33.471.830.91–3.70.09
High school graduate0.850.50–1.44.550.520.26–1.04.07
Unemployed1.040.62–1.73.881.200.48–3.02.70
Depression1.050.58–1.90.871.010.39–2.61.98
Anxiety1.600.89–2.88.110.660.24–1.84.43
Hallucinations1.250.62–2.52.541.120.45–2.79.80
Concentration1.400.86–2.26.171.030.47–2.28.94
Violent behavior1.240.74–2.09.412.211.10–4.42.03
SI in the past 30 days (at baseline)6.053.40–10.76<.0013.691.72–7.93<.001
SA during lifetime (at baseline)2.661.76–4.02<.0013.521.60–7.78.002
Daily stimulant use in the past 30 days2.370.79–7.14.121.860.46–7.43.38
Daily nicotine in the past 30 days0.960.62–1.48.861.320.66–2.66.43
ASI drug score1.070.82–1.41.611.040.68–1.58.86
Days using alcohol or drugs (of past 30)0.970.74–1.28.851.170.78–1.74.44
Emergency department in the past 90 days0.750.49–1.16.201.660.82–3.37.16
Psychiatric outpatient in the past 90 days1.410.90–2.21.131.380.68–2.81.37
EuroQol
    Mobility impairment1.320.84–2.09.231.150.55–2.40.70
    Usual activity impairment1.160.71–1.91.551.140.52–2.50.73
    Depression or anxiety1.781.07–2.96.031.100.48–2.54.81
    Visual-Analogue Health Scale1.060.86–1.31.570.850.61–1.19.35
  • Variables with significant associations are presented in boldface.

  • ASI, Addiction Severity Index Lite; CI, confidence interval; OR, odds ratio; SA, suicide attempt; SI, suicide ideation.