Table 4.

Studies of HCV Incidence in Injection Drug Users

Study	Location	Population	Recruitment	# in Study	# Infected	Person Years	Incidence Rate (per 100 pys)
Hahn et al, 2002 (67)	San Francisco, California	Injection drug users ages 18– 30 who injected at least once in past month	Target	195	48	191.2	25.1
Des Jarlais et al 2003 (43)	New York City, New York	Injection drug users ages 18– 30 who reported injection at least once in past 6 months	Target	141	25	120.8	20.7
Patrick, et al 2001 (52)	Vancouver, Canada	Injection drug users ages 18– 30 who injected at least once in past month	Target	155	62	213.1	29.1
Thorpe et al. 2002 (68)	Chicago, Illinois	Injection drug users ages 18– 30 who injected at least once in past month	Target	353	29	290	10
Roy et al 2007 (54)	Ontario and Quebec, Canada	Injection drug users who injected at least once in past 6 months and were visiting centers providing sterile injection equipment	Convenienc e	543	199	734.3	27.1
Augenbraun et al, 2003 (66)	New York City NY, DC, Los Angeles CA, San Francisco CA, Chicago IL	Women utilizing HIV primary care sites, drug treatment, or outreach facilities who reported ever injecting drugs	Convenienc e	Unk.	2	293.0	0.68
Hall et al, 2004 (49)	San Francisco CA	HIV positive homeless persons recruited from homeless shelters, free lunch programs, or residential hotels who reported injection drug use in past 30 days	Target	22	8	47.6	16.8
Hagan et al 2004 (47)	Seattle, WA	Injection drug users who reported injection at least once in previous year; recruited from drug treatment facilities	Convenience	484	134	1155.2	11.6
Fuller et al 2004 (45)	New York City NY	Injection at least once in past 2 months	Target	62	13	36.2	35.9