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. 2022 May 25;11(5):e220024.
doi: 10.1530/EC-22-0024.

Premature menopause and autoimmune primary ovarian insufficiency in two international multi-center cohorts

Affiliations

Premature menopause and autoimmune primary ovarian insufficiency in two international multi-center cohorts

Elinor Chelsom Vogt et al. Endocr Connect. .

Abstract

Objective: To investigate markers of premature menopause (<40 years) and specifically the prevalence of autoimmune primary ovarian insufficiency (POI) in European women.

Design: Postmenopausal women were categorized according to age at menopause and self-reported reason for menopause in a cross-sectional analysis of 6870 women.

Methods: Variables associated with the timing of menopause and hormone measurements of 17β-estradiol and follicle-stimulating hormone were explored using multivariable logistic regression analysis. Specific immunoprecipitating assays of steroidogenic autoantibodies against 21-hydroxylase (21-OH), side-chain cleavage enzyme (anti-SCC) and 17alpha-hydroxylase (17 OH), as well as NACHT leucine-rich-repeat protein 5 were used to identify women with likely autoimmune POI.

Results: Premature menopause was identified in 2.8% of women, and these women had higher frequencies of nulliparity (37.4% vs 19.7%), obesity (28.7% vs 21.4%), osteoporosis (17.1% vs 11.6%), hormone replacement therapy (59.1% vs 36.9%) and never smokers (60.1% vs 50.9%) (P < 0.05), compared to women with menopause ≥40 years. Iatrogenic causes were found in 91 (47%) and non-ovarian causes in 27 (14%) women, while 77 (39%) women were classified as POI of unknown cause, resulting in a 1.1% prevalence of idiopathic POI. After adjustments nulliparity was the only variable significantly associated with POI (odds ratio 2.46; 95% CI 1.63-3.42). Based on the presence of autoantibodies against 21 OH and SCC, 4.5% of POI cases were of likely autoimmune origin.

Conclusion: Idiopathic POI affects 1.1% of all women and almost half of the women with premature menopause. Autoimmunity explains 4.5% of these cases judged by positive steroidogenic autoantibodies.

Keywords: autoimmune; premature menopause; premature ovarian failure; premature ovarian insufficiency; primary ovarian insufficiency.

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Figures

Figure 1
Figure 1
Study design. European Community Respiratory Health Survey (ECRHS3S). The Respiratory Health in Northern Europe, Spain and Australia (Rhinessa). Idiopathic premature ovarian insufficiency (POI).
Figure 2
Figure 2
Timing and etiology of menopause.
Figure 3
Figure 3
17β-estradiol and follicle-stimulating hormone (FSH) by (A) time since menopause and (B) BMI in all post-menopausal women (n  = 1134). Hormone levels reported in mean and 95% CI.
Figure 4
Figure 4
Multivariable logistic regression of reproductive and lifestyle factors associated with idiopathic primary ovarian insufficiency (POI) compared to menopause ≥40 years. Odds ratio adjusted for BMI, smoking, age and study affiliation (adOR) and 95% CI. Excluding women with surgically induced menopause ≥40 years (n  = 261) or women with menopause at 40–44 years (n  = 361) did not alter the results of the multivariable logistic regression analysis.
Figure 5
Figure 5
Hormonal patterns of 17β-estradiol and follicle-stimulating hormone (FSH) in three groups of women with different reasons for premature menopause. Idiopathic primary ovarian insufficiency (POI), iatrogenic and non-ovarian premature menopause.
Figure 6
Figure 6
Autoantibody index levels in 66 women with idiopathic primary ovarian insufficiency (POI) and a control group of 64 age-matched women with iatrogenic premature menopause (bilateral ovariectomized). Dotted line shows the cut-off threshold for positive test in this radio-binding ligand assay.

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