Trial reportObstetrics and gynecology2021
Pregnancy Risk by Frequency and Timing of Unprotected Intercourse Before Intrauterine Device Placement for Emergency Contraception.
Trial report in Obstetrics and gynecology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02175030 (RAPID EC - Randomized Controlled Trial Assessing Pregnancy With Intrauterine Devices for Emergency Contraception), which is not on this map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
RAPID EC - Randomized Controlled Trial Assessing Pregnancy With Intrauterine Devices for Emergency Contraception
Who cites it
2 citing papers in PubMed, 12 citations in OpenAlex.
- Improving access to highly effective emergency contraception: an assessment of barriers and facilitators to integrating the levonorgestrel IUD as emergency contraception using two applications of the Consolidated Framework for Implementation Research.Implementation science communications · 2022Article
- Exploring the Role of Levonorgestrel Intrauterine System (LNG-IUS) as a Method of Emergency Contraception (EC).Cureus · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
objectiveTo assess pregnancy risk after intrauterine device (IUD) placement by the number and timing of unprotected intercourse episodes in the prior 14 days.
methodsThis was a secondary analysis of a randomized trial that compared the copper T380A IUD and levonorgestrel 52-mg intrauterine system for emergency contraception. At enrollment, participants had a negative urine pregnancy test result and reported the frequency and timing of any unprotected intercourse in the preceding 14 days. We assessed pregnancies 1 month after IUD placement and compared pregnancy risk by single or multiple unprotected intercourse episodes and by timing (5 or fewer days before IUD placement or 6 or more days before).
resultsAmong the 655 participants, one pregnancy occurred in a patient who reported intercourse once 48 hours before IUD placement. Multiple unprotected intercourse episodes were reported by 286 participants (43.7%), and 95 participants (14.4%) reported at least one unprotected intercourse episode 6 or more days before IUD placement. No pregnancies occurred among those with multiple unprotected intercourse episodes (0%, 97.5% CI 0-1.3%) or with any unprotected intercourse episode 6-14 days before IUD placement (0.0%, 97.5% CI 0.0-3.8%). Pregnancy risk difference did not significantly differ by single compared with multiple unprotected intercourse episodes (0.3%, 95% CI -0.3% to 0.8%), nor by unprotected intercourse 5 or fewer days before IUD placement or 6 or more days before (0.2%, 95% CI -0.2% to 0.5%).
conclusionWith a negative urine pregnancy test result at IUD placement, 1-month pregnancy risk remains low, regardless of frequency or timing of unprotected intercourse in the prior 14 days. CLINICAL
trial registrationClinicalTrials.gov, NCT02175030.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.