Cu LL, Vu LTH

Language: English
References: 24
Page: 26-31
PDF size: 49.11 Kb.

ABSTRACT

Introduction: Globally, population surveys on HIV/AIDS and other sensitive topics have been using audio computer-assisted self interview for many years. This interview technique, however, is still new to Vietnam and little is known about its application and impact in general population surveys. One plausible hypothesis is that residents of Vietnam interviewed using this technique may provide a higher response rate and be more willing to reveal their true behaviors than if interviewed with traditional methods.
Objetive: This study aims to compare audio computer-assisted self interview with traditional face-to-face personal interview and self-administered interview with regard to rates of refusal and affirmative responses to questions on sensitive topics related to HIV/AIDS.
Methods: In June 2010, a randomized study was conducted in three cities (Ha Noi, Da Nan and Can Tho), using a sample of 4049 residents aged 15 to 49 years. Respondents were randomly assigned to one of three interviewing methods: audio computer-assisted self interview, personal face-to-face interview, and self-administered paper interview. Instead of providing answers directly to interviewer questions as with traditional methods, audio computer-assisted self-interview respondents read the questions displayed on a laptop screen, while listening to the questions through audio headphones, then entered responses using a laptop keyboard. A MySQL database was used for data management and SPSS statistical package version 18 used for data analysis with bivariate and multivariate statistical techniques. Rates of high risk behaviors and mean values of continuous variables were compared for the three data collection methods.
Results: Audio computer-assisted self interview showed advantages over comparison techniques, achieving lower refusal rates and reporting higher prevalence of some sensitive and risk behaviors (perhaps indication of more truthful answers). Premarital sex was reported by 20.4% in the audio computer-assisted self-interview survey group, versus 11.4% in the face-to-face group and 11.1% in the self-administered paper questionnaire group. The pattern was consistent for both male and female respondents and in both urban and rural settings. Men in the audio computer-assisted self-interview group also reported higher levels of high-risk sexual behavior—such as sex with sex workers and a higher average number of sexual partners—than did women in the same group. Importantly, item refusal rates on sensitive topics tended to be lower with audio computer-assisted self interview than with the other two methods.
Conclusions: Combined with existing data from other countries and previous studies in Vietnam, these findings suggest that researchers should consider using audio computer-assisted self interview for future studies of sensitive and stigmatized topics, especially for men.

REFERENCES

1. Vietnam 2010 Country Progress Report on HIV/ AIDS. Ha Noi: Ministry of Health (VN); 2010 Mar.

2. Thuong NV, Nhung VT, Nghia KV, Tram LT, O’Farrell N. HIV in female sex workers in fi ve border provinces of Vietnam. Sex Transm Infect. 2005 Dec;81(6):477–9.

3. General Statistical Offi ce (VN), National Institute of Hygiene and Epidemiology (VN), ORC Macro. Vietnam Population and AIDS Indicator Survey 2005. Calverton, Maryland (US): ORC Macro; 2006 May.

4. Metzger DS, Koblin B, Turner C, Navaline H, Valenti F, Holte S, et al. Randomized controlled trial of audio computer-assisted self-interviewing: utility and acceptability in longitudinal studies. Am J Epidemiol. 2000 Jul 15;152(2):99–106.

5. Mensch BS, Hewett PC, Erulkar AS. The reporting of sensitive behavior by adolescents: a methodological experiment in Kenya. Demography. 2003 May; 40(2):247–68.

6. Mensch BS, Hewett PC, Gregory R, Helleringer S. Sexual behavior and STI/HIV status among adolescents in rural Malawi: an evaluation of the effect of interview mode on reporting. Stud Fam Plann. 2008 Dec;39(4):321–34.

7. Gribble JN, Miller HG, Rogers SM, Turner CF. Interview mode and measurement of sexual behaviors: Methodological issues. J Sex Res. 1999 Feb;36(1):16–24.

8. Estes LJ, Lloyd LE, Teti M, Raja S, Bowleg L, Allgood KL, et al. Perceptions of audio computerassisted self-interviewing (ACASI) among women in an HIV-positive prevention program. PLoS One. 2010 Feb 10;5(2):e9149.

9. Phillips AE, Gomez GB, Boily MC, Garnett GP. A systematic review and meta-analysis of quantitative interviewing tools to investigate self-reported HIV and STI associated behaviours in low- and middle-income countries. Int J Epidemiol. 2010 Dec;39(6):1541–55.

10. Le LC, Blum RW, Magnani R, Hewett PC, Do HM. A pilot of audio computer-assisted self-interview for youth reproductive health research in Vietnam. J Adolesc Health. 2006 Jun;38(6):740–7.

11. Le Linh C, Blum RW. Premarital sex and condom use among never married youth in Vietnam. Int J Adolesc Med Health. 2009 Jul– Sep;21(3):299–312.

12. Warner SL. Randomized response: A survey technique for eliminating evasive answer bias. J Am Stat Assoc. 1965 Mar;60(309):63–6.

13. Tamhane AC. Randomized response techniques for multiple sensitive attributes. J Am Stat Assoc. 1981 Dec;76(376):916–23.

14. Chaudhuri A, Mukherjee R. Randomized Response Techniques: A Review. Statistica Neerlandica. 1987 Mar;41(1):27–44.

15. Lensvelt-Mulders GJLM, Hox JJ, van der Heijden PGM, Maas CJM. Meta-Analysis of Randomized Response Research. Sociol Methods Res. 2005;33(3):319–48.

16. Peeters CFW, Lensvelt-Mulders GJLM, Lasthuizen K. A note on a simple and practical randomized response framework for eliciting sensitive dichotomous and quantitative information. Sociol Methods Res. 2010 Sep;39(2):283–96.

17. Tourangeau R, Smith TW. Asking sensitive questions: The impact of data collection mode, question format and question content. Public Opin Q. 1996;60(2):275–304.

18. Bui TD, Pham CK, Pham TH, Hoang LT, Nguyen TV, Vu TQ, et al. Cross-sectional study of sexual behaviour and knowledge about HIV among urban, rural, and minority residents in Viet Nam. Bull World Health Organ. 2001;79(1):15–21.

19. Duong CT, Nguyen TH, Hoang TT, Nguyen VV, Do TM, Pham VH, et al. Sexual risk and bridging behaviors among young people in Hai Phong, Vietnam. AIDS Behav. 2008 Jul;12(4):643–51.

20. Ministry of Health (VN), GSO, ADB. Survey Assessment of Vietnamese Youth 2 (SAVY2); Ha Noi: General Offi ce of Population and Family Planning, 2010.

21. Des Jarlais DC, Paone D, Milliken J, Turner CF, Miller H, Gribble J, et al. Audio-computer interviewing to measure risk behaviour for HIV among injecting drug users: a quasi-randomised trial. Lancet. 1999 May 15;353(9165):1657–61.

22. Glynn JR, Kayuni N, Banda E, Parrott F, Floyd S, Francis-Chizororo M, et al. Assessing the validity of sexual behaviour reports in a whole population survey in rural malawi. PLoS One. 2011;6(7):e22840.

23. van der Elst EM, Okuku HS, Nakamya P, Muhaari A, Davies A, McClelland RS, et al. Is Audio Computer- Assisted Self-Interview (ACASI) Useful in Risk Behaviour Assessment of Female and Male Sex Workers, Mombasa, Kenya? PLoS ONE. 2009;4(5):e5340.

24. NIMH Collaborative HIV/STD Prevention Trial Group. The feasibility of audio computer-assisted self-interviewing in international settings. AIDS. 2007 Apr;21 Suppl 2:S49–58.