Chapter 17: Achieving-Related Pregnancy Rate and Its Natural Adaptability

Hilgers TW; Stanford JB

Fertility Awareness · Effectiveness

Chapter 17: Achieving-Related Pregnancy Rate and Its Natural Adaptability

Hilgers TW, Stanford JB

The Medical and Surgical Practice of NaProTECHNOLOGY, 231-240, 2004

RRM Academy Synopsis

CrMS achieving-related pregnancy rate inverse to city unemployment

In five pooled prospective trials of the CREIGHTON MODEL FertilityCare System (CrMS), the composite achieving-related pregnancy rate at 12 months was 21.0 out of 100 couples. The couples had apparently normal fertility. Site rates ranged from 14.2 to 28.0, and across the five sites they correlated inversely with unemployment early in each study.

Key Findings

The five-study composite included 1,876 couples and 17,130.0 couple months of use, and its achieving-related pregnancy rate at one year was 21.0 per 100 couples.
At the 12th ordinal month, the rate was 14.2 at St. Joseph Hospital in Houston and 28.0 in the Wichita study, the lowest and highest of the five sites.
Across the five sites, the achieving-related pregnancy rate varied inversely with unemployment, a statistically significant relationship, with r=0.7849 at the study beginning and 0.7961 at the midpoint.
With Omaha, which resembled a statistical outlier, removed, the correlation was stronger: r=0.9913 for unemployment over the first three-fourths of the study period.

RRM Context

The CrMS teaches couples to recognize the fertile and infertile phases of the cycle. NaProTECHNOLOGY uses it as its charting system. The achieving-related pregnancy rate describes couples who first used the system to avoid pregnancy and later chose to achieve it. The authors suggest that economic conditions in the five cities influenced that choice. Restorative reproductive medicine builds on charting-informed knowledge of fertility, and couples can apply that knowledge to either goal. The chapter frames this flexibility as the natural adaptability of the system.

Our editorial summary of this paper, not the article's abstract.

Abstract

This chapter evaluates the achieving-related pregnancy rate of the CREIGHTON MODEL FertilityCare System (CrMS), using raw data from five prospective trials compiled into a 5-study composite of couples of apparently normal fertility. The achieving-related pregnancy rate varied widely between the five centers, with the Houston program lowest and the Wichita study highest at the 12th ordinal month. The authors compared each site's rate with local unemployment rates from the Bureau of Labor Statistics and report a statistically significant inverse relationship for unemployment rates at the beginning and early part of the study periods, with no correlation at the end. The authors conclude that the overall economic environment had some influence on couples' decisions to achieve pregnancy, and they note as a limitation that employment information for the individual couples was not available.

Topics

Fertility Awareness › Effectiveness › Typical and Perfect Use · Restorative Reproductive Medicine › NaProTechnology › Cumulative Pregnancy Rates · Menstrual Cycle › Cycle Disorders › Ovulatory Disturbances

Thomas W Hilgers, Joseph B Stanford

Tom Hilgers, T Hilgers, Joe Stanford, Joey Stanford, J Stanford

Hilgers et al. 2004, Hilgers 2004

Chapter 17: Achieving-Related Pregnancy Rate and Its Natural Adaptability

CrMS achieving-related pregnancy rate inverse to city unemployment

Key Findings

RRM Context

Abstract

Topics

By this author

Related research