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Creighton Model NaProEducation Technology for avoiding pregnancy. Use effectiveness

T W Hilgers¹, J B Stanford

¹Pope Paul VI Institute for the Study of Human Reproduction, Omaha, Nebraska 68106, USA.

The Journal of Reproductive Medicine

|July 8, 1998

Summary

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The Creighton Model (CrM) NaProEducation Technology demonstrates high effectiveness for pregnancy avoidance. Both method and use effectiveness rates were excellent, indicating CrM is a reliable natural family planning method.

Area of Science:

Reproductive Health
Family Planning
Medical Technology

Background:

The Creighton Model (CrM) is a standardized modification of the Billings ovulation method.
CrM NaProEducation Technology (NET) is utilized for pregnancy avoidance.
Previous prospective studies have evaluated the effectiveness of CrM.

Purpose of the Study:

To evaluate the use effectiveness of Creighton Model (CrM) NaProEducation Technology for avoiding pregnancy.

Main Methods:

A meta-analysis of five prospective use-effectiveness studies of CrM was conducted.
Life-table analysis was used to calculate net and gross pregnancy avoidance rates.
Discontinuation rates were also determined for the CrM method.

Main Results:

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1,876 couples contributed 17,130 couple-months of CrM NET use.
Method and use effectiveness rates for pregnancy avoidance were 99.5% and 96.8% at 12 months, and 99.5% and 96.4% at 18 months, respectively.
The discontinuation rate was 11.3% at 12 months and 12.1% at 18 months.

Conclusions:

CrM NaProEducation Technology is highly effective for pregnancy avoidance.
Method effectiveness remained stable, while use effectiveness for pregnancy avoidance improved over the study period.
CrM represents a reliable natural family planning option.