Testing the Impact of Two Posters on Contraceptive Knowledge, Contraceptive Preferences, and Perceived Pregnancy Risk

NCT03372369 | Completed Results

• 2 other identifiers: 17-2955UL1TR001111
• Study Type: interventional
• Target: 990
• Locations: 1 country
• Sites: 1

Brief 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.

Conditions

Contraception; Knowledge, Attitudes, Practice

Keywords

contraceptive knowledge; contraceptive use; educational intervention; poster; online survey

Outcome Measures

Primary Outcomes (3)

• Change in Contraceptive Knowledge Assessment (CKA) Score

  The CKA is a 25-item tool covering knowledge gaps like long-acting reversible contraceptives, emergency contraception, common myths, and efficacy rates which will be used to determine contraception knowledge. One point is added for each correctly answered question for a total possible score of 25. Higher scores reflect greater contraceptive knowledge.

  Baseline and 15-20 minutes after baseline (3 minutes after exposure to a poster)

• Change in Effective Contraception Preference Score

  Women will be asked whether they are planning on switching contraceptive methods in the next year and which methods of contraception they would hypothetically consider using if they were to switch contraceptive methods within the next year. They are then asked to rank the methods in order of how likely they would be to use each method. A woman's "contraceptive preference" is the method that she says she would be most likely to use. Methods will be scored from 0-3: '0' for no method, '1' for ineffective methods like condoms, '2' for effective methods like the Pill, and '3' for highly effective methods like Intrauterine Devices (IUDs). Positive scores reflect improvements in the effectiveness of the contraceptive method that women say they are likely to use.

  Baseline and 15-20 minutes after baseline (1 minute after exposure to a poster)

• Change in Perceived Pregnancy Risk Score

  Women are asked what their chances of getting pregnant this year are (very high=4, high=3, moderate=2, low=1, very low=0). A good outcome in terms of reducing the risk of unprotected sex and unplanned pregnancy would be increased perceived pregnancy risk as reflected in a higher score.

  Baseline and 15-20 minutes after baseline (2 minutes after exposure to a poster)

Study Arms (2)

CDC Poster

ACTIVE COMPARATOR

After collecting baseline contraceptive knowledge, method preference, if participant were to switch methods during the next year, and current perceived pregnancy risk, participants will view CDC poster for contraceptive effectiveness.

Other: View CDC Poster

Patient-Centered Poster

EXPERIMENTAL

After collecting baseline contraceptive knowledge, method preference, if participant were to switch methods during the next year, and current perceived pregnancy risk, participants will view Patient-Centered poster for contraceptive effectiveness.

Other: View Patient-Centered Poster

Interventions

View CDC Poster OTHER

The poster designed by the CDC to explain contraceptive effectiveness.

CDC Poster

View Patient-Centered Poster OTHER

The poster designed by the research team to explain contraceptive effectiveness. This poster was developed through cognitive interviews with 26 North Carolina women, and the final version of this poster was found to be more useful, acceptable, and attractive than the CDC poster by the majority of women participating.

Patient-Centered Poster

Eligibility Criteria

• Age: 18 Years - 44 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Speak and read English
• Have had vaginal intercourse in the past three months

You may not qualify if:

• Are pregnant
• Are trying to conceive

Sponsors & Collaborators

• University of North Carolina, Chapel Hill: lead
• North Carolina Translational and Clinical Sciences Institute: collaborator

Study Sites (1)

University of North Carolina at Chapel Hill

Chapel Hill, North Carolina, 27510, United States

Location

Related Publications (1)

• Anderson S, Frerichs L, Kaysin A, Wheeler SB, Halpern CT, Lich KH. Effects of Two Educational Posters on Contraceptive Knowledge and Intentions: A Randomized Controlled Trial. Obstet Gynecol. 2019 Jan;133(1):53-62. doi: 10.1097/AOG.0000000000003012.

  PMID: 30531560 DERIVED

MeSH Terms

Conditions

Behavior

Limitations and Caveats

Results are likely only generalizable to US female internet users. The study does not assess the impact of the posters on behavior, only intentions.

Results Point of Contact

• Title: Seri Link Anderson, PhD
• Organization: University of North Carolina at Chapel Hill

seri.link.a@gmail.com

919-619-0433

Study Officials

• Seri AL Anderson, MPH

  University of North Carolina, Chapel Hill

  PRINCIPAL INVESTIGATOR

• Kristen H Lich, PHD

  University of North Carolina, Chapel Hill

  PRINCIPAL INVESTIGATOR

Publication Agreements

• PI is Sponsor Employee: Yes
• Restrictive Agreement: No

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: December 5, 2017
• First Posted: December 13, 2017
• Study Start: January 26, 2018
• Primary Completion: February 13, 2018
• Study Completion: February 13, 2018
• Last Updated: August 20, 2019
• Results First Posted: June 7, 2019

Record last verified: 2017-12

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)