Adults 18 to 44, female only, with Contraception or Knowledge, Attitudes, Practice. Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Change in Contraceptive Knowledge Assessment (CKA) ScorePrimary· Baseline and 15-20 minutes after baseline (3 minutes after exposure to a poster)
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.
Group
Value
95% CI
CDC Poster
0.90
0.66 – 1.13
Patient-Centered Poster
1.6
1.31 – 1.90
Change in Effective Contraception Preference ScorePrimary· Baseline and 15-20 minutes after baseline (1 minute after exposure to a poster)
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
Group
Value
95% CI
CDC Poster
0.09
0.02 – 0.17
Patient-Centered Poster
0.09
0.01 – 0.17
Change in Perceived Pregnancy Risk ScorePrimary· Baseline and 15-20 minutes after baseline (2 minutes after exposure to a poster)
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.
Group
Value
95% CI
CDC Poster
0.002
-0.06 – 0.06
Patient-Centered Poster
0.03
-0.03 – 0.09
Change in Mean Accuracy of Perceived Pregnancy Risk ScoreSecondary· Baseline and 15-20 minutes after baseline (2 minutes after exposure to a poster)
Women are asked what their chances of getting pregnant this year are (very high, high, moderate, low, very low). This response is compared to the most effective contraceptive method women reported using in the past three months using the same categories of effectiveness as in the "change in effective contraception preference score" outcome. Women received a score of 1 if their perceived pregnancy risk was accurate based on their current contraceptive method and a score of 0 if it was inaccurate. Women's perceived pregnancy risk was accurate if: they used a highly effective method and they said
Group
Value
95% CI
CDC Poster
0
-0.02 – 0.02
Patient-Centered Poster
0.013
-0.01 – 0.04
Sponsor's own description
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.
Publications & conference data
1 peer-reviewed publication reference this trial (live from Europe PMC):
NCT07365904 — Investigating Ovulation Inhibition for Use as a Contraceptive
· Phase 2
· recruiting
NCT07437495 — Women's Knowledge of Contraception During the Postpartum Period
· active not recruiting
NCT06823037 — Hormonal Contraception Access Through Pharmacist Prescribing Implementation
· NA
· recruiting
NCT07326007 — Verbal Analgesia Versus Standard Technique for Pain Control During Copper T380A Intrauterine Device Insertion in Women W
· NA
· recruiting
NCT05910580 — Improving Alcohol and Substance Use Care Access, Outcome, Equity During the Reproductive Years
· NA
· recruiting
Other University of North Carolina, Chapel Hill trials
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by University of North Carolina, Chapel Hill
Last refreshed: 20 August 2019
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT03372369.