Characteristics Related to the Prevalence of Minimal or Mild Endometriosis in Infertile Women

Sylvie Bérubé, S Bérubé, Bérubé S, Sylvie Marcoux, Marcoux S, S Marcoux, Maheux R, R Maheux, Rodolphe Maheux
Epidemiology (Cambridge, Mass.) · 1998 · vol. 9(5) , pp. 504–510 · doi:10.1097/00001648-199809000-00006 · PMID:9730028 · W1986178713
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This study identified that infertile women aged 25+ years, with earlier menarche, shorter menstrual cycles, and higher caffeine intake, had higher prevalence of minimal or mild endometriosis, while higher BMI and parity were associated with lower prevalence.

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This case-control study examined demographic and lifestyle factors associated with minimal or mild endometriosis in infertile women by comparing 329 cases diagnosed via laparoscopy against 262 controls with unexplained infertility. The analysis revealed that older age, later menarche, shorter menstrual cycles, higher caffeine consumption, lower body mass index, and nulliparity were significantly linked to a higher prevalence of the condition. Conversely, education level, duration of infertility, and smoking status showed no significant association with the presence of endometriosis in this cohort. This paper is centrally about endometriosis — specifically investigating epidemiological risk factors for minimal or mild disease stages in an infertile population.

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Abstract

The objective of this case-control study is to identify factors associated with the prevalence of minimal or mild endometriosis among infertile women. Cases (N = 329) were women diagnosed by laparoscopy with minimal or mild endometriosis and without any other factors explaining their infertility. Controls (N = 262) were women in whom the infertility remained unexplained after a diagnostic laparoscopy. Selected characteristics were documented by means of a face-to-face interview before the laparoscopy. The prevalence of minimal or mild endometriosis was higher in women age 25 years or older, in those who reported menarche at the age of 13 years [prevalence odds ratio (POR) = 1.63; 95% confidence interval (CI) = 1.02-2.60] or older (POR = 1.73; 95% CI = 1.07-2.78), menstrual cycles of 27 days or less (POR = 1.63; 95% CI = 1.02-2.60), or caffeine intake of 300 mg per day or more (POR = 1.33; 95% CI = 0.91-1.94). The prevalence of minimal or mild endometriosis was inversely related to body mass index. Parous women were less likely to have endometriosis (POR = 0.61; 95% CI = 0.39-0.96) than were nulliparous women. Education, duration of infertility, and smoking status were not related to the presence of endometriosis.
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Characteristics Related to the Prevalence of Minimal or Mild Endometriosis in Infertile Women - Sylvie Bérubé - Sylvie Marcoux - Rodolphe Maheux The objective of this case-control study is to identify factors associated with the prevalence of minimal or mild endometriosis among infertile women. Cases (N = 329) were women diagnosed by laparoscopy with minimal or mild endometriosis and without any other factors explaining their infertility. Controls (N = 262) were women in whom the infertility remained unexplained after a diagnostic laparoscopy. Selected characteristics were documented by means of a face-to-face interview before the laparoscopy. The prevalence of minimal or mild endometriosis was higher in women age 25 years or older, in those who reported menarche at the age of 13 years [prevalence odds ratio (POR) = 1.63; 95% confidence interval (CI) = 1.02–2.60] or older (POR = 1.73; 95% CI = 1.07–2.78), menstrual cycles of 27 days or less (POR = 1.63; 95% CI = 1.02–2.60), or caffeine intake of 300 mg per day or more (POR = 1.33; 95% CI = 0.91–1.94). The prevalence of minimal or mild endometriosis was inversely related to body mass index. Parous women were less likely to have endometriosis (POR = 0.61; 95% CI = 0.39–0.96) than were nulliparous women. Education, duration of infertility, and smoking status were not related to the presence of endometriosis. (Epidemiology 1998;9:504–510)

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Condition tags

endometriosisinfertility

MeSH descriptors

Endometriosis Infertility, Female Adult Age Factors Body Mass Index Case-Control Studies Confidence Intervals Endometriosis Endometriosis Female Humans Infertility, Female Infertility, Female Laparoscopy Menarche Odds Ratio Parity Prevalence Quebec Quebec

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