Table 1

Participant summary—grouped by frequency of drug use

	Age (years)	Time since street drugs	Time since substitute	Longest clean (off everything)	How often using street drugs now	Main route when last used	Time since worked	Total worked
Daily use
1	51	1 day	Never (allergy)	1 month	X1/day	Smoke	1 day	31 years
2	52	1 day	NA (amphetamine and crack)	6 months	Every day	Smoke	2 days	40 years
3	32	Today	Current	1 year	X5–20/day	IDU	1 day	15 years
4	49	Today	Current	7 years	X10/day	IDU	5 days	3 years+
5	27	Today	Current	19 weeks	X3–4/day	Smoke	Today	7 years
6	26	Today	Current	4 years	X10/day	IDU	2 days	1 year
7	52	1 day	>1 year	1 year	>Once/day	Smoke	5 days	35 years
8	54	1 day	Current	4 months	X7/day	IDU	6 months	10 years
9	38	Today	Current	Always OST	X10/day	IDU	1 day	1½ years
Regular use
10	50	1 day	Current	8 years	X1–2/week	Smoke	2 months	14 years
11	49	Today	Current	3½ years	X2–3/week	Smoke	2 months	20 years
12	36	1 day	Current	2 weeks	Alternate days	IDU	1 month	4 years
13	46	2 weeks	2 years	3½ years	X1/month	Smoke	3 years	32 years
14	41	2 days	Current	6 months	X1–2/week	IDU	2 days	5 years
15	34	2 days	Current	2 weeks	X2/week	IDU	2 days	20 years
Problem alcohol use
16	38	1 month	Current	Never	Seasonal	Smoke	5 months	10 years
17	40	1 day	Current	Few days	When misses methadone	IDU	2 days	10 years
In recovery
18	40	4 years	3½ years	4 years	−	Smoked	5 years	12 years
19	41	13 months	13 months	13 months	−	IDU	13 months	15 years
20	41	2 years	13 months	14 months	−	IDU	2 years	20 years
21	36	2½ years	2 years	2 years	−	IDU	2½ years	15 years
22	44	2 years	3 years	2 years	−	IDU	7 years	10 years
23	37	3¾ years	3½ years	3½ years	−	IDU	3½ years	1 year
24	37	4 years	4 years	4 years	−	Smoke	4 years	8 years