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Table 1 Participant characteristics at study entry (N = 683)

From: Sensitivity and specificity of self-reported psychiatric diagnoses amongst patients treated for opioid use disorder

Characteristic

Total sample

N = 683

Self-reported psychiatric comorbidity

n = 162 (23.7%)

No self-reported psychiatric comorbidity

n = 521 (76.3%)

Age (years); mean (SD)

39.1 (11.4)

37.8 (11.6)

39.4 (11.3)

Sex; n (%)

 Males

395 (57.8%)

94 (58.0%)

301 (57.8%)

 Females

288 (42.2%)

68 (42.0%)

220 (42.2%)

Unemployment; n (%)

450 (65.9%)

108 (66.7%)

342 (65.5%)

Age at first opioid use (years); mean (SD)

25.5 (8.8)

25.2 (8.7)

25.6 (8.8)

Years in treatment; median (Q1, Q3)

3 (1, 6)

2 (1, 5)

3 (1, 7)

Methadone dose (mg/d); mean (SD)

77.0 (46.5)

71.8 (39.8)

78.7 (48.3)

Opioid abstinence at study entry; n (%)

335 (49.1)

71 (43.8)

264 (50.7)

Percentage (%) of opioid-positive drug screens at study entry if non-abstinent; median (Q1, Q3)

25 (10, 58.2)

29.6 (12, 64.3)

23.5 (9.1, 55.6)

  1. SD Standard Deviation, Q1 Quartile 1, Q3 Quartile 3