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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: Int J Drug Policy. 2009 Apr 9;21(1):20–27. doi: 10.1016/j.drugpo.2009.02.008

Table 3.

Syphilis and HIV prevalence among drug users

Number
of
Studies		 Number
of
Subjects
Tested
for
Syphilis		 Range Median Unweighted
Interquartile
Range of
Proportions
(1st to 3rd
Quartiles)
Overall
Syphilis
Prevalence 		all 32 13,596 1.0%
to
60.3%		 11.1% 6.3% –15.3%
men 11 3570 0.7%
to
13.0%		 4.0% 3.4% – 6.6%
women 6 1313 9.1%
to
60.3%		 19.9% 11.4% – 36.0%
Active Syphilis
Prevalence 		11 5054 0.0%
to
15.3%		 6.2% 3.0% – 10.8%
Unspecified Syphilis
Prevalence 		27 12,281 1.0%
to
51.2%		 11.0% 6.3% – 13.9%
HIV
Prevalence 		31 13,358 0.0%
to
100%		 1.1% 0.2% – 5.5%