Healthcare Professionals Publications and Articles

Publications & Articles

Read abstracts of our scientific publications and take a look at our posters presented at congresses by our Clearblue Healthcare Professional Team

  • Fertility and Ovulation
  • Pregnancy
  • Contraception


ACOG 2019 Poster 6M - Fertility Knowledge of Women in the United States

A study of 1000 US women sought to understand their knowledge of fertility. This study highlights a gap in basic fertility knowledge in many women. Greater awareness and further education are required to equip women with a better understanding of their own fertility in order for them to maximize their chances of conception.


Fertility 2019 Poster P099 - hCG levels can decline pre- or post-onset of bleeding in early pregnancy loss.

Non-progressive rise in human chorionic gonadotrophin (hCG) followed by decline is indicative of early pregnancy loss. Decline of hCG has been observed to occur before bleeding, but the proportion of losses identifiable prior to bleeding has not been established. This analysis examined changes in daily urinary hCG levels in relation to onset of bleeding.


Fertility 2019 Poster P193 - Double the chances of conception in first cycle of use with new connected ovulation test.

The aim of this study was to demonstrate that using the Clearblue Connected Ovulation Test System increases chances of pregnancy


Fertility 2019 Poster P043 - Connected ovulation testing; user's experience.

This study sought to examine whether a new connected ovulation test with an app provides additional benefits to women trying to conceive


Fertility 2019 Poster P042 - New connected ovulation test provides big data on menstrual cycles

In one of the biggest datasets ever examined on menstrual cycles in women seeking to conceive, the cycle length distribution and variability mirrors previous studies. Cycles far shorter or longer than expected could be a result of the users’ poor understanding of their cycle or cycle irregularity. The Clearblue Connected Ovulation Test System therefore provides women with more insight into their cycles and enables them to accurately time intercourse when trying to conceive.


Can apps and calendar methods predict ovulation with accuracy?

The accuracy of prediction of ovulation by cycle apps and published calendar methods was determined by comparing to true probability of ovulation. Read the full article here


ACOG 2018 Poster 19G - Use of cycle length alone to predict ovulation, as utilized by some Apps, is highly inaccurate

Women trying to conceive will often use methods to time intercourse. This study sought to determine whether accurate prediction is possible based only on cycle length characteristics


ACOG 2018 Poster 10F - First Bluetooth® connected ovulation test with App to predict ovulation and track cycles

This study examined women’s usage and experience of the new Clearblue™ Connected Ovulation Test System


ACOG 2018 Poster 5B - Increased likelihood of pregnancy from sex on the two days before ovulation

This study examined intercourse patterns in women using the Clearblue™ Advanced Digital Ovulation Test, and likelihood of pregnancy in relation to timing.


Fertility 2018 Poster - The every-sample urine collection study; when is the best time to do LH tests?

This study aimed to determine whether there is an optimum test time for LH


AEPU Annual Meeting 2017 - Proportion of unidentified early pregnancy loss in a population of women trying to conceive

The rate of recognised miscarriages is approximately 20%. This may under-represent the true figure, as it only considers loss after pregnancy recognition. We aimed to determine the extent of unrecognised early pregnancy loss in women trying to conceive.


ASRM 2016 Poster - Vaginal Lubricant Use Among Women Trying to Conceive

This study sought to assess the prevalence of lubricant use in women of reproductive age who are actively trying to conceive.  It examined whether vaginal dryness is a common problem in women trying to conceive, and whether women may benefit from a ‘fertility-friendly’ personal lubricant to facilitate comfortable intercourse


ESHRE 2017 Poster - Can likelihood of natural pregnancy be determined from demographics and LH surge characteristics

This study examined whether demographic information, together with LH surge characteristics, can predict the likelihood of women conceiving naturally


RCOG 2016 Poster - Pituitary human chorionic gonadotrophin in reproductive ageing

This study examined the relationship between pituitary hCG and reproductive hormones in daily urine samples from pre-, peri- and post-menopausal women.


RCOG 2016 Poster - Urinary levels of intact, free beta and beta core fragment of human chorionic gonadotrophin (hCG) in early pregnancy

This study sought to improve the understanding of the levels of free-ß and ß-core-hCG in viable pregnancies.


ESHRE 2016 Poster - Urinary human chorionic gonadotrophin (hCG) levels in early pregnancies correlate with serum hCG and may be used for the monitoring of early pregnancy well-being

This study evaluated the validity of using urinary hCG rise and fall for monitoring of early pregnancy well-being


ACOG 2015 Poster - Analysis of human chorionic gonadotrophin (hCG) levels in normal and failing pregnancies

This study examined daily urinary hCG concentrations to assess pregnancy viability.


ACOG 2015 Poster - Urinary levels of intact, free beta and beta core fragment of human chorionic gonadotrophin (hCG) in early pregnancy

This study sought to improve the understanding of the levels of free-beta and beta-core-hCG in viable pregnancies.


FIGO 2015 Poster - Agreement between urinary luteinising hormone, results from Clearblue Advanced Ovulation Test and ultrasound-observed ovulation

This study examined the performance of the Clearblue Advanced Digital Ovulation Test compared with ultrasound-observed ovulation.


FIGO 2015 Poster - Anti-Mullerian hormone levels, numbers and sizes of antral follicles in regularly menstruating women referenced to true ovulation day

This study sought to establish whether AMH levels vary throughout the menstrual cycle in women of reproductive age and whether AMH production is linked to follicle size.