Effects of a short individually tailored counselling session for HIV prevention in gay and bisexual men receiving Hepatitis B vaccination

Table 2 A comparison of unprotected anal intercourse (UAI)-change scores (t2-t0) between experimental and control group at follow up.

		Experimental group			Control group		Model 1		Model 2
	n	Pre-test UAI-score	UAI-change score	n	Pre-test UAI-score	UAI-change score	F	p	F	P
UAI with casual and steady partners	152	0.42	-0.05	118	0.41	0.27	4.85	<0.05	5.72	<0.05
UAI with steady partners	152	0.25	0.04	118	0.33	0.27	2.48	0.12	3.90	<0.05
UAI with casual partners	155¹	0.17	-0.08	121¹	0.08	0.00	1.94	0.17	0.27	0.61

¹The number of respondents for the different behaviours are not equal, due to more missing values in the variables used to calculate the UAI-index score for UAI with steady partners than with casual partners
Note:
Model 1: covariates include ethnic background (Dutch vs non-Dutch) and educational level (low level: elementary school, vocational school or lower-level high school vs high level: university, college, or higher- level high school)
Model 2: As Model 1, with pre-test UAI- score as additional covariate

ISSN: 1471-2458