Fehring, R. J., & Mu, Q. (2014). Cohort efficacy study of natural family planning among perimenopause age women. Journal of Obstetric, Gynecologic, and Neonatal Nursing : JOGNN / NAACOG, 43(3), 351–358.
Key Results
There were a total of 5 unintended pregnancies among the participants. The typical use 15 pregnancy rate was 6 per 100 women over 12 months. The monitor alone participants (n=35) 16 had a 12-month pregnancy rate of 3, the (n=73) who used mucus alone had a pregnancy rate of 4, 17 and the participants (n=42) who used the fertility monitor plus mucus had a pregnancy rate of 6.
Conclusion
NFP methods can be effective for older women to avoid an unintended pregnancy19 with correct use and adequate instructions. The pregnancy rate most likely was affected by 20 diminished fertility and motivation to limit family size.