AIDS and Behavior

, Volume 17, Issue 2, pp 790–800

Effect of Computer-Assisted Interviewing on Self-Reported Sexual Behavior Data in a Microbicide Clinical Trial

  • Pamina M. Gorbach
  • Barbara S. Mensch
  • Marla Husnik
  • Astou Coly
  • Benoit Mâsse
  • Bonus Makanani
  • Chiwawa Nkhoma
  • Lameck Chinula
  • Tchangani Tembo
  • Stan Mierzwa
  • Kimberly Reynolds
  • Stacey Hurst
  • Anne Coletti
  • Andrew Forsyth
Original Paper

DOI: 10.1007/s10461-012-0302-2

Cite this article as:
Gorbach, P.M., Mensch, B.S., Husnik, M. et al. AIDS Behav (2013) 17: 790. doi:10.1007/s10461-012-0302-2

Abstract

In a microbicide safety and effectiveness trial (HPTN 035) in Malawi, 585 women completed the same questionnaire through a face-to-face interview (FTFI) and an audio computer-assisted self-interview (ACASI). Concordance between FTFI and ACASI responses ranged from 72.0 % for frequency of sex in the past week to 95.2 % for anal intercourse (AI) in the past 3 months. Reported gel and condom use at last sex act were marginally lower with ACASI than FTFI (73.5 % vs. 77.2 %, p = 0.11 and 60.9 % vs. 65.5 %, p = 0.05, respectively). More women reported AI with ACASI than FTFI (5.0 % vs. 0.2 %, p < 0.001). Analyses of consistency of responses within ACASI revealed that 15.0 % of participants in the condom-only arm and 28.7 % in the gel arm provided at least one discrepant answer regarding total sex acts and sex acts where condom and gel were used (19.2 % reported one inconsistent answer, 8.1 % reported two inconsistent answers, and 1.4 % reported three inconsistent answers). While ACASI may provide more accurate assessments of sensitive behaviors in HIV prevention trials, it also results in a high level of internally inconsistent responses.

Keywords

ACASI interviewingMicrobicidesSexual behavior reporting

Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Pamina M. Gorbach
    • 1
  • Barbara S. Mensch
    • 2
  • Marla Husnik
    • 3
  • Astou Coly
    • 1
  • Benoit Mâsse
    • 3
    • 8
  • Bonus Makanani
    • 4
  • Chiwawa Nkhoma
    • 4
  • Lameck Chinula
    • 5
  • Tchangani Tembo
    • 5
  • Stan Mierzwa
    • 2
  • Kimberly Reynolds
    • 5
  • Stacey Hurst
    • 4
  • Anne Coletti
    • 6
  • Andrew Forsyth
    • 7
  1. 1.Department of EpidemiologyUniversity of California, Los AngelesLos AngelesUSA
  2. 2.Population CouncilNew YorkUSA
  3. 3.Fred Hutchinson Cancer Research CenterSeattleUSA
  4. 4.College of Medicine-Johns Hopkins University Research Project, Queen Elizabeth Central HospitalBlantyreMalawi
  5. 5.UNC Project, Tidziwe CentreKamuzu Central HospitalLilongweMalawi
  6. 6.Family Health InternationalMedfordUSA
  7. 7.National Institute of Mental Health, NIHBethesdaUSA
  8. 8.CHU Sainte-Justine Research Center, Université de MontréalMontréalCanada