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

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

   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
  1. 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
  2. Note:
  3. 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)
  4. Model 2: As Model 1, with pre-test UAI- score as additional covariate