Robinson (2007) Increased pregnancy rate with use of the Clearblue Easy Fertility Monitor. Fertil Steril 87(2):329-34.
Key Results
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
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.