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. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: J Subst Abuse Treat. 2015 Feb 18;54:29–36. doi: 10.1016/j.jsat.2015.01.014

Table 1.

Participant characteristics and drug use history

Entire Sample (N=460)

Variable N (%)

Demographic

 Male 443 (96.3%)
 Age, mean ± SD 38.8 ± 9.2
 High school graduate 217 (47.1%)
 Single 337 (73.3%)
 Stable housing 383 (83.3%)
 At or above poverty 356 (77.4%)
 Malay 416 (90.4%)
 Indian 31 (6.7%)
 Chinese 12 (2.6%)

Age of first drug injection

 Mean ± SD 15.0 ± 9.2

Past drug usea

 Opioid-dependent 456 (99.1%)
 Heroin 437 (95.0%)
 Methadone 200 (43.5%)
 Methamphetamines 198 (43.0%)
 Benzodiazepines 197 (42.8%)
 Buprenorphine 129 (28.0%)
 Poly-substance use 338 (73.5%)

Medical History+

 Withdrawal 436 (94.8%)
 Hospitalization 52 (11.3%)
 HIV positive 73 (15.9%)

Non-OMT Treatment Historya

 Compulsory drug detention center 283 (61.5%)
 Religious detoxification 201 (43.6%)
 Narcotics Anonymous 36 (7.8%)
 Hospital detoxification 35 (7.6%)
 Therapeutic community (Pengasih) 24 (5.2%)

Previous OMT Historyb

 Buprenorphine 58 (12.6%)
 Methadone 43 (9.3%)
a

Assessed in the prior 6 months.

b

Assessed for lifetime