Menstrual Cycle Characteristics and the Risk of Endometriosis
The present study utilized a case-control design to assess the relation between menstrual cycle factors and risk of endometriosis in women age 19-45 years. From a gynecologic specialty clinic in Western New York in 1987, we identified 104 laparoscopically confirmed cases of endometriosis. We used tw...
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Veröffentlicht in: | Epidemiology (Cambridge, Mass.) Mass.), 1993-03, Vol.4 (2), p.135-142 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The present study utilized a case-control design to assess the relation between menstrual cycle factors and risk of endometriosis in women age 19-45 years. From a gynecologic specialty clinic in Western New York in 1987, we identified 104 laparoscopically confirmed cases of endometriosis. We used two control groups: (1) 100 friend controls (friends of cases), and (2) 98 medical controls (patients from the same medical practice with conditions other than endometriosis). Controls were frequency matched to cases by age. Because crude odds ratios (ORs), stratified by age ( |
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ISSN: | 1044-3983 1531-5487 |
DOI: | 10.1097/00001648-199303000-00009 |