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Polycystic ovary syndrome (PCOS) is the most common endocrine disorder among women and is commonly accompanied by metabolic derangements. In this study we sought to investigate Hb levels, and their metabolic associations, in women with PCOS.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and Methods<\/jats:title>\n                    <jats:p>We used data from Northern Finland Birth Cohort 1966 to evaluate Hb levels in women with or without PCOS at the ages of 31 and 46\u2009years. Linear regression models were used to investigate associations between Hb levels and essential metabolic parameters in both groups.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Women with PCOS had higher Hb levels than controls at the age of 31\u2009years but not at the age of 46\u2009years. Hb levels were associated positively with most of the metabolic parameters tested (body mass index, waist circumference, fasting insulin, homeostatic model assessment\u2013insulin resistance (HOMA\u2010IR), blood pressure, inflammatory markers, and blood lipids), with stronger associations in women with PCOS than in non\u2010PCOS controls. There were fewer associations at the age of 46 than at 31\u2009years, and body mass index seemed to explain many, though not all, differences between the PCOS and non\u2010PCOS groups.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Women with PCOS have higher Hb levels at the age of 31\u2009years. In both women with and without PCOS, Hb levels associate with poorer metabolic profile.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/aogs.15047","type":"journal-article","created":{"date-parts":[[2024,12,30]],"date-time":"2024-12-30T07:48:32Z","timestamp":1735544912000},"page":"357-367","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Association of hemoglobin levels with metabolic traits in women with PCOS"],"prefix":"10.1111","volume":"104","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3708-8176","authenticated-orcid":false,"given":"Nikke","family":"Virtanen","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology, Medical Research Centre, Research Unit of Clinical Medicine University of Oulu, Oulu University Hospital  Oulu Finland"},{"name":"Faculty of Biochemistry and Molecular Medicine University of Oulu  Oulu 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