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Cited by 99Reproductive Health and TechnologiesReproductive Health and ContraceptionReproductive System and Pregnancy

Increased pregnancy rate with use of the Clearblue easy fertility monitor

Open access
Robinson, Janet E., Wakelin, Melanie, Ellis, Jayne E.·2007·Fertility and Sterility
DOI 10.1016/j.fertnstert.2006.05.054
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Abstract

Objective To determine the effect on pregnancy rates through use of the Clearblue Easy Fertility Monitor (CEFM) in women trying to conceive. Design Prospective study, in which volunteers were randomly assigned either to use or not to use the CEFM. All participants could also use other aids to conception. Data were self-reported by volunteers using daily diaries, supplied and collected by mail. Setting Home use, under conditions normally experienced by over-the-counter purchasers of the marketed device. Patient(s) Women who were trying to conceive; 653 (CEFM 305, control 348) provided evaluable information. Intervention(s) CEFM was used for two cycles. Main outcome measure(s) Cumulative pregnancy rates over two cycles of use. Result(s) The cumulative pregnancy rate for 2 cycles was significantly higher in the CEFM group (22.7%) compared with the control group (14.4%). More women who had been trying to conceive for <6 months became pregnant than women who had been trying to conceive for >6 months (odds ratio: 2.67). Previous pregnancy and younger age of partners were also significant prognostic factors, but use of other aids to conception was not. After adjustment for other factors, CEFM use remained a significant factor affecting the chance of conceiving within two cycles (odds ratio: 1.89). CEFM users found the device to be easy/very easy to use (90%) and convenient/very convenient (80%). Conclusion(s) Use of the CEFM increases the likelihood of getting pregnant during the first two cycles of use compared with its nonuse, in women who had been trying to conceive for up to 2 years.

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Crossref · 10.1016/j.fertnstert.2006.05.054

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  • An accurate prediction of the woman's unique fertile window is needed to enable appropriate timing of intercourse.

    “An accurate prediction of the woman’s unique fertile window is therefore needed to enable appropriate timing of intercourse (Robinson et al. 2007).”

    From Real-life insights on menstrual cycles and ovulation using big data (2020) · cites this paper as Robinson et al. 2007

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Authors
Robinson, J. E., Wakelin, M., & Ellis, J. E.
Affiliations
Family Health International 360 (US)
Corresponding author
Ellis, Jayne E.
ORCID
Ellis, Jayne E.
Venue
Fertility and Sterility
Publisher
Elsevier BV
Published
2007-02
Volume
87
Issue
2
Pages
329-334
ISSN
0015-0282 (ISSN-L)
DOI
10.1016/j.fertnstert.2006.05.054
OpenAlex
W1911782883
Cited by
99
References
17
Citations by year
2026: 4 · 2025: 5 · 2024: 4 · 2023: 5 · 2022: 7 · 2021: 3 · 2020: 5 · 2019: 6 · 2018: 6 · 2017: 5 · 2016: 3 · 2015: 4 · 2014: 5 · 2013: 8 · 2012: 3
FWCI
5.94
Type
journal article
Language
en
Open access
Licence
Locations
  • Fertility and Sterility (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Reproductive Medicine › Reproductive Health and Technologies
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Reproductive Health and Contraception
  • Life Sciences › Immunology and Microbiology › Immunology › Reproductive System and Pregnancy
Keywords
ovulation prediction, fertility monitoring, pregnancy rate, conception, cumulative pregnancy rate
MeSH terms
Adult, Female, United Kingdom, Humans, Ovulation Detection, Pregnancy, Pregnancy Outcome, Self Care, Treatment Outcome, Pregnancy Rate, Equipment Failure Analysis

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