{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T05:57:04Z","timestamp":1790661424571,"version":"4.1.0"},"reference-count":31,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T00:00:00Z","timestamp":1790553600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T00:00:00Z","timestamp":1790553600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Obstet and Gynaecol"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Natural menopause marks the end of a woman's reproductive lifespan and has important implications for long\u2010term health. The timing of natural menopause is associated with several health outcomes and is influenced by reproductive, anthropometric, and lifestyle factors. This study investigated age at natural menopause (ANM) and its associated lifestyle and reproductive determinants among postmenopausal women.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      This cross\u2010sectional study was conducted between March and December 2024 among 400 eligible postmenopausal women attending health centers affiliated with Ardabil University of Medical Sciences. Participants were selected using cluster random sampling. Data were collected using a demographic and reproductive characteristics questionnaire and the Lifestyle Questionnaire (LSQ). Statistical analyses included descriptive statistics, independent\n                      <jats:italic>t<\/jats:italic>\n                      \u2010test, ANOVA, Pearson's correlation, and multivariable regression using SPSS version 21.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The mean ANM was 49.98\u2009\u00b1\u20092.62\u2009years. Most participants were housewives (78%) and had low economic status (76%). Significant associations were found between menopause age and BMI (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.001), number of abortions (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.043), breastfeeding duration (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.006), gravidity (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.030), and contraceptive use (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.050). Lifestyle score showed a positive correlation with menopause age (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.001). Multivariable regression identified BMI and lifestyle dimensions, including weight control and nutrition, psychological, spiritual, social, environmental health, and accident prevention, as significant predictors of ANM.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Natural menopause age was associated with reproductive characteristics, BMI, and lifestyle factors. Promoting healthy lifestyle behaviors may support healthy reproductive aging. However, prospective longitudinal studies are required to confirm these findings and clarify underlying mechanisms.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jog.70507","type":"journal-article","created":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T05:01:49Z","timestamp":1790658109000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Age at Natural Menopause and Associated Lifestyle and Reproductive Factors Among Postmenopausal Women in Northwest Iran: A Cross\u2010Sectional Study"],"prefix":"10.1111","volume":"52","author":[{"given":"Alireza","family":"Gholampour\u2010Nooran","sequence":"first","affiliation":[{"name":"Student's Research Committee Ardabil University of Medical Sciences  Ardabil Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-7362-1172","authenticated-orcid":false,"given":"Mahnaz","family":"Azari","sequence":"additional","affiliation":[{"name":"Department of Midwifery, School of Nursing and Midwifery Ardabil University of Medical Sciences  Ardabil Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6503-1332","authenticated-orcid":false,"given":"Afrouz","family":"Mardi","sequence":"additional","affiliation":[{"name":"Department of Public Health, School of Health Ardabil University of Medical Sciences  Ardabil Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fatemeh","family":"Abdoli","sequence":"additional","affiliation":[{"name":"Student's Research Committee Ardabil University of Medical Sciences  Ardabil Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,28]]},"reference":[{"key":"e_1_2_14_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.maturitas.2021.12.001"},{"key":"e_1_2_14_3_1","unstructured":"WHO \u201cMenopause \u201d(2024)."},{"key":"e_1_2_14_4_1","doi-asserted-by":"crossref","DOI":"10.1155\/2021\/6636856","article-title":"Meta\u2010Analysis: Early Age at Natural Menopause and Risk for All\u2010Cause and Cardiovascular Mortality","volume":"1","author":"Huan L.","year":"2021","journal-title":"BioMed Research International"},{"key":"e_1_2_14_5_1","doi-asserted-by":"publisher","DOI":"10.1093\/ije\/dyu094"},{"key":"e_1_2_14_6_1","doi-asserted-by":"crossref","unstructured":"M. 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B.Kajbaf \u201cConstruction and Validation of the Lifestyle Questionnaire (LSQ) \u201d(2012)."},{"issue":"4","key":"e_1_2_14_16_1","doi-asserted-by":"crossref","DOI":"10.5812\/ijem.109285","article-title":"Anthropometric Indices and Age at Natural Menopause: A 15\u2010Year Follow\u2010Up Population\u2010Based Study","volume":"19","author":"Farahmand M.","year":"2021","journal-title":"International Journal of Endocrinology and Metabolism"},{"key":"e_1_2_14_17_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0300448"},{"key":"e_1_2_14_18_1","doi-asserted-by":"publisher","DOI":"10.1111\/jog.14614"},{"key":"e_1_2_14_19_1","doi-asserted-by":"publisher","DOI":"10.1097\/GME.0000000000001829"},{"key":"e_1_2_14_20_1","doi-asserted-by":"crossref","DOI":"10.1016\/j.maturitas.2026.109005","article-title":"Assessing Age at Natural Menopause From Self\u2010Reported Data in a Long\u2010Running Population\u2010Based Cohort Study","volume":"211","author":"Pieterse I. 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