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Evidence-based planning of a randomized controlled trial on diaphragm use for prevention of sexually transmitted infections.

Abstract：

OBJECTIVES:We conducted formative research to evaluate the acceptability and feasibility of continuous diaphragm use among low-income women highly exposed to sexually transmitted infections (STIs) in Madagascar. GOAL:To identify potential obstacles to researching the effectiveness of diaphragm use for STI prevention in a randomized controlled trial. STUDY DESIGN:Mixed methods to collect complex information. In a quantitative pilot study, women were asked to use diaphragms continuously (removing once daily for cleaning) for 8 weeks and promote consistent male condom use; they were interviewed and examined clinically during follow-up. Focus group discussions (FGDs) were conducted pre-/postpilot study. Audiotaped FGDs were transcribed, translated, coded, and analyzed. RESULTS:Ninety-three women participated in prepilot FGDs, 91 in the pilot study, and 82 in postpilot FGDs. Diaphragm use was acceptable and feasible, but participants reported lower condom use in FGDs than during interviews. Most participants reported in interviews that they used their diaphragms continuously, but FGDs revealed that extensive intravaginal hygiene practices may impede effective continuous diaphragm use. Despite counseling by study staff, FGDs revealed that participants believed the diaphragm provided effective protection against STIs and pregnancy. CONCLUSIONS:Mixed methods formative research generated information that the prospective pilot study alone could not provide and revealed contradictory findings. Results have methodological and ethical implications that affect trial design including provision of free hormonal contraceptives, and additional instructions for vaginal hygiene to avoid displacing the diaphragm. Mixed methods formative research should be encouraged to promote evidence-based study design and implementation.

journal_name

Sex Transm Dis

journal_title

Sexually transmitted diseases

authors

Behets FM,Van Damme K,Turner AN,Rabenja NL,Ravelomanana NL,Raharinivo MS,Zeller KA,Rennie SM,Swezey TA

doi

10.1097/OLQ.0b013e31815abaa2

subject

Has Abstract

pub_date

2008-03-01 00:00:00

pages

238-42

issue

eissn

0148-5717

issn

1537-4521

journal_volume

pub_type

杂志文章

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Evidence-based planning of a randomized controlled trial on diaphragm use for prevention of sexually transmitted infections.