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Sex Transm Dis. 2005 Nov;32(11):665-71.

Do participant characteristics influence the effectiveness of behavioral interventions? Promoting condom use to women.

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1
Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Division of Reproductive Health, Atlanta, GA 30341-3724, USA. jlegardy@cdc.gov

Abstract

OBJECTIVES:

This study assessed whether participant baseline characteristics modified the effects of a skill-based intervention promoting condom use.

STUDY:

The randomized, controlled trial enrolled 427 women from a sexually transmitted disease clinic in Birmingham, Alabama. The main outcome measures: consistent (100%) and problem-free (correct, no breakage or slippage) condom use were verified by sexual diary self-report and contraceptive product counts.

RESULTS:

The enhanced intervention group had a 60% higher consistent condom use rate compared to the basic group (risk ratio [RR], 1.6; 95% confidence interval [CI], 1.4-1.8). There was no statistically significant difference between groups in relationship to problem-free, consistent use (RR, 1.0; 95% CI, 0.9-1.1). A binomial regression analysis identified the following factors as significant modifiers of intervention effectiveness on consistent condom use: intention to use condoms next time, early-age sexual debut, marital status combined with place of intercourse, and substance use before sex.

CONCLUSIONS:

The results suggest that participant baseline characteristics can be modifiers of intervention effectiveness.

PMID:
16254540
[Indexed for MEDLINE]
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