a1'4% 12834 were positive for antiHBsAg alone

1
Results Apr 5, 2006 - July 1, 2007
Demographic characteristics and test results at
baseline
a 1.4 (12/834) were positive for anti-HBsAg
alone b Amphetamine, met-amphetamine,
methyldioxythamphetamine, opiates, marijuana or
benzodiazepine
2
Behavioral characteristics during 4 months
preceeding baseline and total HIV incidence and 4
month follow-up rate