Women trying to conceive should make use of the urine test over the more commonly used calendar method, said the makers of the test.
![Simple Urine Test Gives Accurate Prediction of Ovulation Simple Urine Test Gives Accurate Prediction of Ovulation](https://images.medindia.net/health-images/1200_1000/pregnancy-highbloodpressure.jpg)
According to a study conducted by the company, the calendar method predicted ovulation correctly in only one in four women, while the test "predicted correctly in 99 percent of women over the same period," the authors of the study said in a statement.
The calendar method, which uses the previous cycle length and subtracts 14 or 15 days to give an estimate of the day of ovulation, is used by about 35 percent of women, the researchers found, pointing out that many websites and mobile phone applications offer calculation assistance.
Ellis and her team had asked a group of 101 women to collect daily urine samples for a total of 895 cycles, and then compared the accuracy with which the calendar method and the Clearblue test predicted peak fertile days.
"We found that the calendar method was inaccurate in predicting ovulation and therefore the peak fertile days," Ellis said in the statement, adding that "this is because it uses data from previous cycles which are naturally variable in many women."
The ovulation test, which like a simple pregnancy test comes in the shape of a pen, can when the tip is stuck into the urine flow detect a surge in luteinising hormones (LH) which trigger ovulation.
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"It really pinpoints for women the most fertile days to conceive in their cycle," Ellis told AFP.
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"At a time when more and more women are delaying pregnancy until their 30s, it is increasingly important that they have a better understanding of their own menstrual cycles and the days on which they are fertile," the statement said.
Source-AFP