Table III.

Demographics and baseline risk behaviors of participants at Philadelphia, USA.

		Treatment Indexes N=91	Treatment Networks N=172	Control Indexes N=98	Control Networks N=194	Total N=555
Gender	Male	70 ( 77%)	107 ( 62%)	80 ( 82%)	114 ( 59%)	371 ( 67%)
	Female	21 ( 23%)	65 ( 38%)	18 ( 18%)	80 ( 41%)	184 ( 33%)
Age	18–30	16 ( 18%)	20 ( 12%)	20 ( 20%)	31 ( 16%)	87 ( 15%)
	31–40	25 ( 27%)	49 ( 28%)	24 ( 24%)	59 ( 30%)	157 ( 28%)
	40+	50 ( 55%)	103 ( 60%)	54 ( 55%)	104 ( 54%)	311 ( 56%)
Education	No or primary	0 ( 0%)	2 ( 1%)	3 ( 3%)	4 ( 2%)	9 ( 2%)
	Some secondary	70 ( 77%)	131 ( 76%)	75 ( 77%)	150 ( 77%)	426 ( 77%)
	Completed secondary	21 ( 23%)	39 ( 23%)	20 ( 20%)	40 ( 21%)	120 ( 22%)
Employment	Full time	5 ( 5%)	16 ( 9%)	9 ( 9%)	15 ( 8%)	45 ( 8%)
	Part time/occasional	11 ( 12%)	14 ( 8%)	13 ( 13%)	19 ( 10%)	57 ( 10%)
	Unemployed	75 ( 82%)	142 ( 83%)	76 ( 78%)	160 ( 82%)	453 ( 82%)
Non-injection drug use	Opiates (smoked)	31 ( 34%)	70 ( 41%)	27 ( 28%)	66 ( 34%)	194 ( 35%)
	Benzodiazepines	45 ( 49%)	76 ( 44%)	54 ( 55%)	106 ( 55%)	281 ( 51%)
	Crack/Cocaine (smoke)	62 ( 68%)	92 ( 53%)	48 ( 49%)	99 ( 51%)	301 ( 54%)
	Cocaine (snort or sniff)	14 ( 15%)	32 ( 19%)	16 ( 16%)	33 ( 17%)	95 ( 17%)
	Amphetamines (smoke)	0 ( 0%)	3 ( 2%)	1 ( 1%)	1 ( <1%)	5 ( <1%)
Alcohol use	None	42 ( 46%)	55 ( 32%)	41 ( 42%)	79 ( 41%)	217 ( 39%)
	Yes, but never drunk	14 ( 15%)	53 ( 31%)	34 ( 35%)	48 ( 25%)	149 ( 27%)
	Sometimes/always drunk	35 ( 38%)	64 ( 37%)	23 ( 23%)	66 ( 34%)	188 ( 34%)
Days injected in last month	0	1 ( 1%)	21 ( 12%)	2 ( 2%)	30 ( 15%)	54 ( 10%)
	1–5	0 ( 0%)	19 ( 11%)	2 ( 2%)	19 ( 10%)	40 ( 7%)
	6–29	36 ( 40%)	51 ( 30%)	30 ( 31%)	47 ( 24%)	164 ( 30%)
	Everyday	54 ( 59%)	81 ( 47%)	64 ( 65%)	98 ( 51%)	297 ( 54%)