FABMs are effective

This letter is written in response to “Policy likely to widen ‘contraception deserts’,” (Oct. 4, 2018).

As a certified teacher of natural family planning (NFP), I was delighted to read about Obria Medical Clinics’ NFP-only model. Fertility Awareness Based Methods (FABMs) have no side effects and best respect the dignity of women. Evidence-based data of four of the most popular FABMs based on an article published in May 2013 by the Osteopathic Family Physician Journal show:

— Sympto-thermal Method: pregnancy rate with perfect use 0.4%, with typical use 1.6%

— Marquette Method: perfect use 0%, typical use 6.8%

— Billings Ovulation Method: perfect use 1.1%, typical use 10.5%

— Standard Days Method: perfect use 4.8%, typical use 11.9%

These unintended pregnancy rates are far from the 24% rate put forth by the CDC. Why is inaccurate data being reported? The CDC cites a study with a low-quality research methodology in which the authors put much older, low-tech methods, including the calendar rhythm method, in the same basket as modern, standardized and proven FABMs. The American Academy of Family Physicians is among those who have written to request that the CDC update the effectiveness rates quoted for these methods. Physicians need accurate data to share with patients.

Jeanne Finger

Spokane