Table 1. Cumulative (baseline and follow-up) utilization of addiction treatment modalities among a prospective cohort of injection drug users (N = 992).

Addiction Treatment Modality	N (%)	Median Duration Days (IQR)
Recovery House	18 (1.8)	83 (26–94)
Treatment Centre	3 (0.3)	-
Addiction counsellor	44 (4.4)	135 (64–730)
Self-help (AA/NA/CA)	31 (3.1)	730 (136–3098)
Methadone maintenance therapy	358 (36.1)	731 (244–2188)