The Creighton Method of Natural Family Planning has a failure rate of 3.2 percent or less

the verdict

SUPPORTED

the evidence backs this

Recorded sources

3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Evidence indicates that the Creighton Method of Natural Family Planning has a perfect-use failure rate around 0.5% and a use-effectiveness failure rate generally at or below 3.2 percent.

The analysis

Judged against statistical and reference sources.

Evidence for · 3

skeptics.stackexchange.com: Does the Creighton Method of Natural Family Planning ...

Recorded source metadata

skeptics.stackexchange.com: Does the Creighton Method of Natural Family Planning .... skeptics.stackexchange.com. https://skeptics.stackexchange.com/questions/45054/does-the-creighton-method-of-natural-family-planning-have-a-failure-rate-of-3-2

Notes claims of a 3.2% typical-use and 0.5% perfect-use failure rate for the Creighton Method.

Source citation format

See more details

More for · 2

pubmed.ncbi.nlm.nih.gov: Use effectiveness of the Creighton model ovulation method ...

Recorded source metadata

pubmed.ncbi.nlm.nih.gov: Use effectiveness of the Creighton model ovulation method .... pubmed.ncbi.nlm.nih.gov. https://pubmed.ncbi.nlm.nih.gov/8057183/

Shows a 12-month use effectiveness of 98.0% (a 2.0% failure rate) and method effectiveness of 98.8%.

Source citation format

en.wikipedia.org: Creighton Model FertilityCare System

Recorded source metadata

en.wikipedia.org: Creighton Model FertilityCare System. en.wikipedia.org. https://en.wikipedia.org/wiki/Creighton_Model_FertilityCare_System

States a perfect-use failure rate of 0.5% for the Creighton Model.

Source citation format

The paper trail · every fact has a biography

first checked31 Jul 2026

judged → SUPPORTED · 7531 Jul 2026

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