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. Author manuscript; available in PMC: 2012 Apr 1.
Published in final edited form as: Ann Epidemiol. 2011 Apr;21(4):280–289. doi: 10.1016/j.annepidem.2010.11.007

Table 1.

Socio-demographic and Drug Use Characteristics of Illicit Drug Users Recruited Through RDS in New York City, 2006-2009

Study Sample*
(N=357)

N %
Gender
 Male 271 75.1
 Female 85 24.9
Race/Ethnicity
 Hispanic 122 36.5
 Black 199 54.4
 White/Other 36 9.1
Education
 < High School 231 64.3
 ≥ High School 126 35.7
Income
 ≤ 10,000 288 85.2
 > 10,000 50 14.8
Age
 18-27 63 18.2
 28-30 49 14.3
 31-34 70 19.2
 35-36 51 14.5
 37-38 55 17.5
 39-40 69 19.2
Homeless in last 6 months
 No 108 30.2
 Yes 249 69.8
Injection status
 NIDU 331 90.6
 IDU 26 9.4
HIV status
 Negative 302 90.1
 Positive 33 9.9
Heroin use in the past 6 months (with or without
crack/cocaine)
 No 188 53.3
 Yes 165 46.7
Cocaine use in the past 6 months (with or without heroin)
 No 81 22.5
 Yes 274 77.5
Crack use in the past 6 months (with or without heroin)
 No 52 15,8
 Yes 304 84.2
Number of drug-using network members (mean, post-fit
mean)
1.52 1.57

Abbreviations: HIV, Human Immunodeficiency Virus; RDS, Respondent Driven Sampling

*

This does not include seeds