Document Detail


A comparison of the fertile phase as determined by the Clearplan Easy Fertility Monitor and self-assessment of cervical mucus.
MedLine Citation:
PMID:  14720613     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of this study was to compare the fertile phase of the menstrual cycle as determined by the Clearplan Easy Fertility Monitor (CPEFM) with self-monitoring of cervical mucus. One-hundred women (mean age = 29.4 years) observed their cervical mucus and monitored their urine for estrogen and luteinizing hormone metabolites with the CPEFM on a daily basis for 2-6 cycles and generated 378 cycles of data; of these, 347 (92%) had a CPEFM peak. The beginning of the fertile window was, on average, day 11.8 (SD = 3.4) by the monitor and day 9.9 (SD = 3.0) by cervical mucus (r = 0.43, p < 0.001). The average first day of peak fertility by the monitor was 16.5 (SD = 3.6) and by cervical mucus 16.3 (SD = 3.7) (r = 0.85, p < 0.001). The mean length of the fertile phase by the monitor was 7.7 days (SD = 3.1) and by cervical mucus 10.9 days (SD = 3.7) (t = 12.7, p < 0.001). The peak in fertility as determined by the monitor and by self-assessment of cervical mucus is similar but the monitor tends to underestimate and self-assessment of cervical mucus tends to overestimate the actual fertile phase.
Authors:
Richard J Fehring; Kathleen Raviele; Mary Schneider
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Contraception     Volume:  69     ISSN:  0010-7824     ISO Abbreviation:  Contraception     Publication Date:  2004 Jan 
Date Detail:
Created Date:  2004-01-14     Completed Date:  2004-05-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0234361     Medline TA:  Contraception     Country:  United States    
Other Details:
Languages:  eng     Pagination:  9-14     Citation Subset:  IM    
Affiliation:
College of Nursing, Institute for Natural Family Planning, Marquette University, Clark Hall, PO Box 1881, Milwaukee, WI 53201-1881, USA. richard.fehring@marquette.edu
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Cervix Mucus / physiology*
Estrogens / urine*
Female
Fertility*
Humans
Luteinizing Hormone / urine*
Menstrual Cycle / physiology*
Middle Aged
Natural Family Planning Methods*
Ovulation Detection / methods*
Sensitivity and Specificity
Chemical
Reg. No./Substance:
0/Estrogens; 9002-67-9/Luteinizing Hormone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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