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ORAL CONTRACEPTION AND CONGENITAL ABNORMALITIES
Author(s) -
Kasan Pravin N.,
Andrews Joan
Publication year - 1980
Publication title -
bjog: an international journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.157
H-Index - 164
eISSN - 1471-0528
pISSN - 1470-0328
DOI - 10.1111/j.1471-0528.1980.tb05001.x
Subject(s) - medicine , incidence (geometry) , obstetrics , pregnancy , cohort , population , genitourinary system , developed country , gynecology , family planning , pediatrics , research methodology , biology , genetics , physics , environmental health , optics
Summary Of 10 479 single births in South Glamorgan between January 1974 and June 1976, 27·3 per cent of infants were born to women who had used oral contraception in the three months prior to their last menstrual period (users) and 72·3 per cent were born to women who had not used oral contraception during the same period (non users). There were significantly more infants with neural tube defects among users compared with non users. Abnormalities of the digestive, genito‐urinary and cardiovascular systems, bones, muscle, skin and connective tissues, endocrine glands, blood, chromosomes and oral clefts, were of similar incidence in the two groups.