N/A
N=990
Testing the Impact of Two Posters on Contraceptive Knowledge, Contraceptive Preferences, and Perceived Pregnancy Risk
Contraception · Knowledge, Attitudes, Practice
Bottom Line
View on ClinicalTrials.gov: NCT03372369 ↗Enrolled (actual)
990
Serious AEs
0.0%
Results posted
Jun 2019
Primary outcome: Primary: Change in Contraceptive Knowledge Assessment (CKA) Score — 0.90; 1.6 scores on a scale — p=<0.0001
Study Design & Population
- Study type
- Interventional
- Phase
- N/A
- Interventions
- View CDC Poster (Other); View Patient-Centered Poster (Other)
- Age
- Adult · 18+ yrs
- Sex
- Female
- Sponsor
- University of North Carolina, Chapel Hill
- Primary completion
- Feb 2018
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Change in Contraceptive Knowledge Assessment (CKA) Score |
0.90; 1.6 | <0.0001 sig |
| PRIMARY Change in Effective Contraception Preference Score |
0.09; 0.09 | <0.001 sig |
| PRIMARY Change in Perceived Pregnancy Risk Score |
0.002; 0.03 | >0.01 |
Summary
This study tests two posters that teach people about contraception: one designed by the Centers for Disease Control (CDC), and one designed by the researchers. The investigators hypothesize that the new poster will have more increased (1) contraceptive knowledge, (2) willingness to use effective contraception, and (3) perceived pregnancy risk than the CDC poster. This study will expand useful knowledge because contraceptive knowledge, willingness to use effective contraception, and perceived pregnancy risk have been shown to affect women's likelihood of using contraception. If the investigators learn how to increase these factors, the investigators could theoretically reduce women's risk of unplanned pregnancy.
The investigators will test this hypothesis by recruiting N=1000 women to complete an online survey using Amazon Mechanical Turk. These women will complete a survey that will first measure their initial contraceptive knowledge, willingness to use effective contraception, and perceived pregnancy risk. Then women will randomly be shown one of the two posters. Then, the investigators will measure their contraceptive knowledge, willingness to use effective contraception, and perceived pregnancy risk again. The investigators will use statistical tests (a t-test) to find out whether there are significant changes in these three outcomes for either of the posters, and whether one poster does a better job of changing these outcomes than the other.
Eligibility Criteria
Inclusion Criteria
- Speak and read English
- Have had vaginal intercourse in the past three months
Exclusion Criteria
- Are pregnant
- Are trying to conceive
Data sourced from ClinicalTrials.gov (NCT03372369). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.