Table 3.

Summary of Outcome Measures and Findings by Groups

Outcomes and Findings1	Total (48 studies)	EBIs (14 studies)	Rigorous Non-EBIs (10 studies)	Positive Non-EBIs (13 studies)	Other Non-EBIs (11 studies)
Transmission Risk Behavior (i.e., unprotected sex with HIV-negative or serostatus unknown partners)
# of studies reported the outcome	21	11	6	2	2
# of studies showed significant positive intervention effects	12	11	0	1	0
Unprotected Sex Behavior (partner serostaturs not reported)
# of studies reported the outcome	33	9	6	10	8
# of studies showed significant positive intervention effects	16	8	0	8	0
Sex and Drug Combined Index
# of studies reported the outcome	3	0	0	2	1
# of studies showed significant positive intervention effects	2	0	0	2	0
Injection Drug Use or Needle Sharing
# of studies reported the outcome	5	1	2	2	0
# of studies showed significant positive intervention effects	2	0	0	2	0
Biologic Outcome (i.e., Sexually Transmitted Diseases)
# of studies reported the outcome	6	3	0	0	3
# of studies showed significant positive intervention effects	1	1	0	0	0

EBI = evidence-based interventions that show at least one significant positive intervention effect and have low risk of bias in study design, implementation and analysis Rigorous Non-EBI = interventions show no significant positive intervention effects but have low risk of bias in study design, implementation and analysis Positive non-EBI = interventions show at least one significant positive intervention effect but have high risk of bias in study design, implementation and analysis Other non-EBI = interventions show no significant positive intervention effect and have high risk of bias in study design, implementation and analysis

¹A study may contribute to more than one outcome measure