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IRIS
Objective To determine the frequency and causes of preterm ovarian failure (menopause before 40 years of age) and early menopause (menopause between 40 and 45 years).
Design Cross sectional study.
Setting Menopause clinics in Italy.
Population Women attending menopause clinics in Italy.
Methods Between 1997 and 1999 we conducted a large cross sectional study on the characteristics of women around menopause attending a network of first-level outpatient menopause clinics in Italy for general counselling about menopause or treatment of menopausal symptoms. Eligible for the study were all women aged 45-75 years consecutively observed for the first time at the participating centres on randomly selected days during the study period.
Main outcome measure Factors associated with preterm ovarian failure.
Results Out of 15,253 women aged 55 years or more with spontaneous menopause who entered the study, 269 (1.8%) reported preterm ovarian failure, and 1085 (7.1%) reported spontaneous menopause at age 40-45 years. The risk of preterm ovarian failure and of early menopause was higher in women reporting lifelong irregular menstrual cycles: in comparison with women reporting menopause at age greater than or equal to45 years, the OR (irregular vs regular mestrual cycles) of preterm ovarian failure was 1.3 (95% CI 1.0-1.7) and of early menopause of 1.2 (95% CI 1.0-1.5). Parous women reported less frequently preterm ovarian failure (chi(2) trend P < 0.05) and early menopause (OR 0.8, 95% CI 0.7-1.0). No significant association emerged between risk of preterm ovarian failure or menopause at age 40 to <45 and education, age at menarche, oral contraceptive use and smoking habits.
Conclusion Nulliparity and lifelong irregular menstrual cycles are associated with an increased risk of preterm ovarian failure.
Objective To determine the frequency and causes of preterm ovarian failure (menopause before 40 years of age) and early menopause (menopause between 40 and 45 years).
Design Cross sectional study.
Setting Menopause clinics in Italy.
Population Women attending menopause clinics in Italy.
Methods Between 1997 and 1999 we conducted a large cross sectional study on the characteristics of women around menopause attending a network of first-level outpatient menopause clinics in Italy for general counselling about menopause or treatment of menopausal symptoms. Eligible for the study were all women aged 45-75 years consecutively observed for the first time at the participating centres on randomly selected days during the study period.
Main outcome measure Factors associated with preterm ovarian failure.
Results Out of 15,253 women aged 55 years or more with spontaneous menopause who entered the study, 269 (1.8%) reported preterm ovarian failure, and 1085 (7.1%) reported spontaneous menopause at age 40-45 years. The risk of preterm ovarian failure and of early menopause was higher in women reporting lifelong irregular menstrual cycles: in comparison with women reporting menopause at age greater than or equal to45 years, the OR (irregular vs regular mestrual cycles) of preterm ovarian failure was 1.3 (95% CI 1.0-1.7) and of early menopause of 1.2 (95% CI 1.0-1.5). Parous women reported less frequently preterm ovarian failure (chi(2) trend P < 0.05) and early menopause (OR 0.8, 95% CI 0.7-1.0). No significant association emerged between risk of preterm ovarian failure or menopause at age 40 to <45 and education, age at menarche, oral contraceptive use and smoking habits.
Conclusion Nulliparity and lifelong irregular menstrual cycles are associated with an increased risk of preterm ovarian failure.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/162984
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simulazione ASN
Il report seguente simula gli indicatori relativi alla propria produzione scientifica in relazione alle soglie ASN 2023-2025 del proprio SC/SSD. Si ricorda che il superamento dei valori soglia (almeno 2 su 3) è requisito necessario ma non sufficiente al conseguimento dell'abilitazione. La simulazione si basa sui dati IRIS e sugli indicatori bibliometrici alla data indicata e non tiene conto di eventuali periodi di congedo obbligatorio, che in sede di domanda ASN danno diritto a incrementi percentuali dei valori. La simulazione può differire dall'esito di un’eventuale domanda ASN sia per errori di catalogazione e/o dati mancanti in IRIS, sia per la variabilità dei dati bibliometrici nel tempo. Si consideri che Anvur calcola i valori degli indicatori all'ultima data utile per la presentazione delle domande.
La presente simulazione è stata realizzata sulla base delle specifiche raccolte sul tavolo ER del Focus Group IRIS coordinato dall’Università di Modena e Reggio Emilia e delle regole riportate nel DM 589/2018 e allegata Tabella A. Cineca, l’Università di Modena e Reggio Emilia e il Focus Group IRIS non si assumono alcuna responsabilità in merito all’uso che il diretto interessato o terzi faranno della simulazione. Si specifica inoltre che la simulazione contiene calcoli effettuati con dati e algoritmi di pubblico dominio e deve quindi essere considerata come un mero ausilio al calcolo svolgibile manualmente o con strumenti equivalenti.