2.50
Hdl Handle:
http://hdl.handle.net/10755/161154
Type:
Presentation
Title:
Statistical Evaluation of the Standard Days Method of Family Planning
Abstract:
Statistical Evaluation of the Standard Days Method of Family Planning
Conference Sponsor:Midwest Nursing Research Society
Conference Year:2005
Author:Fehring, Richard, DNSc, MSN, BSN, RN
P.I. Institution Name:Marquette University
Title:Professor
Contact Address:Nursing Department, P.O. Box 1881, Milwaukee, WI, 53226, USA
Contact Telephone:414-288-3838
Co-Authors:Mary Schneider, BSN, RN, Research Assistant
Background: The Standard Days Method (SDM) is a simple new
calendar-based system of family planning. Users avoid intercourse on days
8-19 of the menstrual cycle to prevent pregnancy. The method has a 95%
correct use effectiveness for women with cycle lengths between 26-32 days.
Purpose: To determine the usefulness of the SDM of family planning for
women with various menstrual cycle characteristics. Framework: There is a 6-day window of fertility within the menstrual
cycle, i.e., the day of ovulation and 5 days before. The 6-day window and
the probabilities of pregnancy for each day were used to evaluate the
parameters of the SDM. Methods: A data set was developed from 200 users of an electronic
fertility monitor that tracks the fertile window based on levels of
urinary estrogen and LH. The LH peak was used to estimate the day of
ovulation (EDO). 200 participants between the ages of 18-42 produced 800+
menstrual cycles of data. Results: Preliminary results from 200 cycles of data yielded a mean length
of 29.4 days (SD=3.7; range 22 û 50 days). The mean EDO was 16.75 (SD=3.3)
with 79% falling within days 8-19 of the menstrual cycle. Of the 200
cycles, 8% were less than 26-32 days, 17% greater, and 30% (60) had days
outside of the 6-day fertile window. However, the highest probability of
pregnancy was only 0.005 for days that fell before the estimated 6-day
window and 0.013 for those that fell after. Conclusion: The rules of the SDM are robust for women who have 1-2 cycles
per year out of the 26-32 day range. Implications: Use of the current parameters for the SDM is recommended
when teaching this method of family planning.
Repository Posting Date:
26-Oct-2011
Date of Publication:
17-Oct-2011
Sponsors:
Midwest Nursing Research Society

Full metadata record

DC FieldValue Language
dc.typePresentationen_GB
dc.titleStatistical Evaluation of the Standard Days Method of Family Planningen_GB
dc.identifier.urihttp://hdl.handle.net/10755/161154-
dc.description.abstract<table><tr><td colspan="2" class="item-title">Statistical Evaluation of the Standard Days Method of Family Planning</td></tr><tr class="item-sponsor"><td class="label">Conference Sponsor:</td><td class="value">Midwest Nursing Research Society</td></tr><tr class="item-year"><td class="label">Conference Year:</td><td class="value">2005</td></tr><tr class="item-author"><td class="label">Author:</td><td class="value">Fehring, Richard, DNSc, MSN, BSN, RN</td></tr><tr class="item-institute"><td class="label">P.I. Institution Name:</td><td class="value">Marquette University</td></tr><tr class="item-author-title"><td class="label">Title:</td><td class="value">Professor</td></tr><tr class="item-address"><td class="label">Contact Address:</td><td class="value">Nursing Department, P.O. Box 1881, Milwaukee, WI, 53226, USA</td></tr><tr class="item-phone"><td class="label">Contact Telephone:</td><td class="value">414-288-3838</td></tr><tr class="item-email"><td class="label">Email:</td><td class="value">richard.fehring@marquette.edu</td></tr><tr class="item-co-authors"><td class="label">Co-Authors:</td><td class="value">Mary Schneider, BSN, RN, Research Assistant</td></tr><tr><td colspan="2" class="item-abstract">Background: The Standard Days Method (SDM) is a simple new <br/> calendar-based system of family planning. Users avoid intercourse on days <br/> 8-19 of the menstrual cycle to prevent pregnancy. The method has a 95% <br/> correct use effectiveness for women with cycle lengths between 26-32 days.<br/> Purpose: To determine the usefulness of the SDM of family planning for <br/> women with various menstrual cycle characteristics. Framework: There is a 6-day window of fertility within the menstrual <br/> cycle, i.e., the day of ovulation and 5 days before. The 6-day window and <br/> the probabilities of pregnancy for each day were used to evaluate the <br/> parameters of the SDM. Methods: A data set was developed from 200 users of an electronic <br/> fertility monitor that tracks the fertile window based on levels of <br/> urinary estrogen and LH. The LH peak was used to estimate the day of <br/> ovulation (EDO). 200 participants between the ages of 18-42 produced 800+ <br/> menstrual cycles of data. Results: Preliminary results from 200 cycles of data yielded a mean length <br/> of 29.4 days (SD=3.7; range 22 &ucirc; 50 days). The mean EDO was 16.75 (SD=3.3) <br/> with 79% falling within days 8-19 of the menstrual cycle. Of the 200 <br/> cycles, 8% were less than 26-32 days, 17% greater, and 30% (60) had days <br/> outside of the 6-day fertile window. However, the highest probability of <br/> pregnancy was only 0.005 for days that fell before the estimated 6-day <br/> window and 0.013 for those that fell after. Conclusion: The rules of the SDM are robust for women who have 1-2 cycles <br/> per year out of the 26-32 day range. Implications: Use of the current parameters for the SDM is recommended <br/> when teaching this method of family planning.</td></tr></table>en_GB
dc.date.available2011-10-26T23:16:46Z-
dc.date.issued2011-10-17en_GB
dc.date.accessioned2011-10-26T23:16:46Z-
dc.description.sponsorshipMidwest Nursing Research Societyen_GB
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