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Successful Sex Pre-selection using Natural Family Planning | <hr /> (mysql): SELECT * FROM authors WHERE submission_id = 408 ORDER BY seq   <hr /> <hr /> (mysql): SELECT * FROM author_settings WHERE author_id = '1318'   <hr /> McSweeney | African Journal of Reproductive Health
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(mysql): SELECT * FROM author_settings WHERE author_id = '1318'  

Successful Sex Pre-selection using Natural Family Planning

(mysql): SELECT * FROM authors WHERE submission_id = 408 ORDER BY seq  
(mysql): SELECT * FROM author_settings WHERE author_id = '1318'  
Léonie McSweeney

Abstract

The objective of the study was to test the hypothesis that gender can be preselected by timing coitus in relation to ovulation, the marker of ovulation being the Peak symptom according to the Billings Method. A blind prospective study of 99 couples wishing to preselect the sex of their child was conducted in Nigeria, using the Post-Peak approach of Billings Method for males and Pre-Peak for females. Research co-ordinators examined the ‘post-conception’ form within four months of conception. This form recorded the timing of coitus prior to conception, and from this, the sex of child was predicted.  94 of the couples had a child of pre-selected sex showing a method success of 94.9%.  78 of 81 predicting a male were successful (96.3%) and 16 of the 18 predicting a female (88.9%). There was one user-failure, a couple who wanted a girl, timed coitus as for a boy, which they had. The study indicates that where comprehensive instruction is provided, the sex of a child can be preselected with a high degree of confidence by timing coitus, using the Post-Peak approach of Billings Method for males and Pre-Peak for females (Afr J Reprod Health 2011; 15[1]: 79-84).

 

Résumé

 

Présélection de sexe réussite à travers la planification familiale naturelle. L’étude avait pour objectif de vérifier l’hypothèse selon laquelle l’on peut présélectionner le sexe tout en calculant la date et l’heure du coït par rapport à l’ovulation, le marqueur de l’ovulation étant le symptôme du débit maximum selon la méthode de Billings.  Une étude prospective à l’aveugle de 99 couples désireuses de présélectionner le sexe de leurs enfants a été menée au Nigéria à l’aide de l’approche du post débit du maximum de la méthode de Billings pour les hommes et d’avant débit du maximum pour les femelles.  Les coordinateurs de recherche ont examiné la forme de la « post-conception » au cours de quatre mois de la conception. Cette forme a enregistré la date et l’heure du coït avant la conception et é partir de ceci on a prédit le sexe de l’enfant.  94 couples avaient des enfants dont le sexe a été sélectionné, ce qui montre un succès de méthode de 94,9%.  78 sur 81 qui ont prédit un mâle ont réussi (96,3%) et 16 sur 18 qui  ont prédit une femelle ont réussi (88,9%).  Il y a eu un cas raté ; le couple qui désirait une fille, ont fait le calcul comme s’il désirait un garçon, ce qu’il a eu en conséquence.  L’étude montre que là où il y a une instruction compréhensive, l’on peut présélectionner le sexe de l’enfant avec une grande confiance en calculant le jour et l’heure du coït, à l’aide de l’approche du post débit du maximum d’après la méthode de Billings pour les mâles  et le pré débit du maximum pour les femelles (Afr J Reprod Health 2011; 15[1]: 79-84).

 

 

  Keywords: Family Planning; HIV Control; Obstetrics; Sex-Preselection

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References

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10947'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10947 ORDER BY metadata_description_id DESC  
(mysql): SELECT * FROM citation_settings WHERE citation_id = '10948'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10948 ORDER BY metadata_description_id DESC  

Odeblad E. Physical properties of cervical mucus. mucus in health and disease. Adv.Exp. Med. Biol. 1977;89,216-25.

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10949'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10949 ORDER BY metadata_description_id DESC  

Odeblad E. The cervix, the vagina and fertility. Billings Atlas of the Ovulation Method 5th edition. Ovulation Method Research and Reference Centre of Australia, Victoria, 1989.

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10950'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10950 ORDER BY metadata_description_id DESC  

Brown JB. Studies on Human Reproduction: Ovarian Activity and Fertility. Ovulation Method Research and Reference Centre of Australia, Victoria, 2000.

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10951'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10951 ORDER BY metadata_description_id DESC  

Ryder B, Campbell H. Natural Family Planning in the 1990s. Lancet 1995; 346: 233-234.

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10952'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10952 ORDER BY metadata_description_id DESC  

Ryder RE. Natural Family Planning: Effective birth control supported by the Catholic Church: British Medical Journal 1993; 307: 723-726.

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10953'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10953 ORDER BY metadata_description_id DESC  

World Health Organisation. A prospective multicentre trial of the ovulation Method of natural family planning. The teaching phase. Fertil. Steril. 1981; 36: 152-158.

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10954'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10954 ORDER BY metadata_description_id DESC  

Depares J, Ryder RE, Walker SM, Scanlon MF, Norman CM. Ovarian ultrasonography highlights precision of symptoms of ovulation as markers of ovulation. Br. Med. J. 1986; 292: 1562

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10955'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10955 ORDER BY metadata_description_id DESC  

Odeblad E. University of Umea, Sweden. Paper delivered in October 2001 at The National Conference of the Ovulation Method Research and Reference Centre, Melbourne.

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10956'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10956 ORDER BY metadata_description_id DESC  

Shettles LB. Factors influencing sex ratios: Int. Journal of Gynaecology & Obstetrics 1970; 8: 643.

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10957'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10957 ORDER BY metadata_description_id DESC  

Billings JJ. The Ovulation Method 7th. Edition. Advocate Press: Melbourne, 1983.

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10958'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10958 ORDER BY metadata_description_id DESC  

Billings E.L., Billings J.J., and Caterinich M. Billings Atlas of the Ovulation Method 5th edition. Ovulation Method Research and Reference Centre of Australia, Victoria, 1989.

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10959'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10959 ORDER BY metadata_description_id DESC  

McSweeney L. Love & Life: Natural Family Planning: Billings Method, 9th ed. PLAN National Hqrs., Eleta, Ibadan, Nigeria 2002.

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10960'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10960 ORDER BY metadata_description_id DESC  

Odeblad E. The discovery of different types of cervical mucus and the Billings Ovulation Method. Ovulation Method Research and Reference Centre of Australia.

(mysql): SELECT * FROM citation_settings WHERE citation_id = '10961'  
(mysql): SELECT * FROM metadata_descriptions WHERE assoc_type = 1048579 AND assoc_id = 10961 ORDER BY metadata_description_id DESC  

Simcock B.W. Sons & Daughters - A Sex-Preselection Study. Med.J.Aust. 1985; 142: 541.

Wilcox A.J., Weinberg CR, Baird DB. Timing of sexual intercourse in relation to ovulation; effects on the probability of conception, survival of the pregnancy, and sex of the baby. New Engl.J.Med. 1995; 333 (23): 1517-21.

(mysql): SELECT r.* FROM referrals r WHERE r.article_id = 408 AND r.status = 2  

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