Table 4.

Propensity score matching analysis: Effect of peer group or collective membership on various outcome measures, comparing FSW peer group or collective members with matched controls: BTS, 2010 and IBBA, 2005–2008.

	Membership in peer group/collective
Outcomes	Treated (%)	Matched controls (%)	Average treatment effect ATT (adjusted effect of membership)	Bootstrap standard error	p-Value	Data source
Condom use with regular partner	54.7	49.7	5.0	0.0091	<0.10	BTS, 2010
Consistent condom use with all clients/partner	89.2	86.7	2.5	0.0105	–
Experienced violence in past six months	22.2	31.7	− 9.5	0.0055	<0.001
Beaten or forced to have sex in the past one year	17.6	23.8	− 6.2	0.0978	–
Given nothing to police to avoid trouble in past six months	87.5	82.3	5.2	0.0051	<0.001
Obtained any form of identification document in last five years	70.5	65.1	5.4	0.0065	<0.05
Gonorrhoea and/or Chlamydia	5.7	10.6	− 4.9	0.0077	<0.001	IBBA, 2005–2008
Syphilis	8.4	10.3	− 1.9	0.0078	<0.05
HIV infection	16.2	17.3	− 1.1	0.0111	–