{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T07:50:38Z","timestamp":1753861838683,"version":"3.41.2"},"reference-count":42,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2024,5,23]],"date-time":"2024-05-23T00:00:00Z","timestamp":1716422400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/100008294","name":"Louisiana State University","doi-asserted-by":"publisher","award":["10.13039\/100019437"],"award-info":[{"award-number":["10.13039\/100019437"]}],"id":[{"id":"10.13039\/100008294","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["American Journal of Biological Anthropology"],"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>Previous research shows that sacroiliac (SI) joint fusion is age and sex dependent. Older individuals\u2014specifically starting in the fifth or sixth decade of life\u2014are more likely to develop SI fusion. Females have a lower frequency of SI joint fusion than males, perhaps due to pregnancy or parturition. This study examines the relationship between SI joint fusion with both sex and parity status in females. The issue is whether the prevalence of SI fusion in nulliparous females is more similar to that of males or parous females.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>The sample consists of 46 nulliparous females, 119 parous females, and 158 males from the William M. Bass Donated Skeletal Collection. Ages of the individuals ranged from 50 to 89\u2009years. Sex, age, and parity status were self\u2010reported.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The frequency of SI joint fusion is significantly different among males (13.29%), nulliparous females (6.52%), and parous females (0.84%). Pairwise comparison of the three groups for SI joint fusion shows that parous females and males are significantly different, but nulliparous females are nonsignificantly different from parous females and males.<\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion<\/jats:title><jats:p>Parity status does not appear to be a factor in the sexually dimorphic nature of SI joint fusion in this sample. Rather, biomechanical and hormonal factors may have a greater contribution to higher rates of SI joint fusion in males than females.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ajpa.24951","type":"journal-article","created":{"date-parts":[[2024,5,24]],"date-time":"2024-05-24T06:29:45Z","timestamp":1716532185000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Prevalence of sacroiliac joint fusion in females and males depending on parity status"],"prefix":"10.1002","volume":"184","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5230-9558","authenticated-orcid":false,"given":"Meredith","family":"Aulds","sequence":"first","affiliation":[{"name":"Department of Geography and Anthropology Louisiana State University  Baton Rouge Louisiana USA"},{"name":"Department of Anthropology Purdue University  West Lafayette Indiana USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,5,23]]},"reference":[{"doi-asserted-by":"publisher","key":"e_1_2_11_2_1","DOI":"10.1136\/ard.41.2.126"},{"doi-asserted-by":"publisher","key":"e_1_2_11_3_1","DOI":"10.1002\/ajpa.24497"},{"doi-asserted-by":"publisher","key":"e_1_2_11_4_1","DOI":"10.1016\/j.steroids.2014.12.010"},{"doi-asserted-by":"publisher","key":"e_1_2_11_5_1","DOI":"10.3389\/fphys.2018.01834"},{"doi-asserted-by":"publisher","key":"e_1_2_11_6_1","DOI":"10.1213\/01.ANE.0000180831.60169.EA"},{"doi-asserted-by":"publisher","key":"e_1_2_11_7_1","DOI":"10.1080\/obs.80.11.1019.1024"},{"doi-asserted-by":"publisher","key":"e_1_2_11_8_1","DOI":"10.1111\/j.1556-4029.2006.00119.x"},{"doi-asserted-by":"publisher","key":"e_1_2_11_9_1","DOI":"10.4324\/9781003216452-35"},{"doi-asserted-by":"publisher","key":"e_1_2_11_10_1","DOI":"10.1073\/pnas.1205282109"},{"doi-asserted-by":"publisher","key":"e_1_2_11_11_1","DOI":"10.1002\/oa.2823"},{"volume-title":"On fertile ground: A natural of human reproduction","year":"2001","author":"Ellison P. 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