{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,29]],"date-time":"2026-01-29T03:48:35Z","timestamp":1769658515163,"version":"3.49.0"},"reference-count":64,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2026,1,28]],"date-time":"2026-01-28T00:00:00Z","timestamp":1769558400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003593","name":"Brazilian National Council for Scientific and Technological Development\u2014CNPq","doi-asserted-by":"publisher","award":["406161\/2021-6"],"award-info":[{"award-number":["406161\/2021-6"]}],"id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diseases"],"abstract":"<jats:p>Background: Sleep deprivation may contribute to increased abdominal adiposity. Although weekend catch-up sleep is associated with various health outcomes, its role in abdominal adiposity remains unclear, particularly among female fixed-shift workers. Therefore, this study aimed to explore the association of workday sleep deprivation and weekend catch-up sleep with abdominal adiposity indicators in Brazilian female fixed-shift workers. Methods: A cross-sectional study was conducted on 450 female fixed-shift workers aged \u2265 18 years from a large industrial group in Southern Brazil. Abdominal adiposity indicators linked to cardiovascular risk were assessed: waist circumference (WC \u2265 88 cm), waist-to-height ratio (WHtR &gt; 0.5), weight-to-waist index (WWI \u2265 11), conicity index (C-Index \u2265 1.27), and WC &amp; Body Mass Index (combined WC \u2265 88 cm and BMI \u2265 30 kg\/m2). Workday sleep deprivation was defined as &lt;6 h (h) of sleep on workdays, and weekend catch-up sleep (absolute difference between weekend and workday sleep duration) was defined as &gt;2 h longer sleep on weekends vs. workdays. Associations were estimated using a Poisson regression with robust variance adjusted for demographic, socioeconomic, behavioral, reproductive, and occupational confounders. Results: The mean age was 34.9 \u00b1 9.9 years. The prevalence rates of abdominal adiposity were 45.3% for WC, 47.6% for WHtR, 26.2% for WWI and C-Index, and 28.7% for WC&amp;BMI. Workday sleep deprivation and weekend catch-up sleep were reported by 27.1% and 43.3% of the participants, respectively. After adjustment for confounders, workday sleep deprivation was consistently associated with higher abdominal adiposity: Prevalence Ratio (PR) = 1.37 (95% CI: 1.10\u20131.69) for WC; 1.25 (95% CI: 1.02\u20131.53) for WHtR; 1.48 (95% CI: 1.07\u20132.04) for WWI; 1.43 (95% CI: 1.03\u20131.99) for C-Index, and 1.59 (95% CI: 1.17\u20132.16) for WC&amp;BMI. Longer weekend catch-up sleep was positively associated with WHtR (PR = 1.24; 95% CI: 1.03\u20131.49) and WC&amp;BMI (PR = 1.39; 95% CI: 1.04\u20131.85). Conclusions: Workday sleep deprivation was consistently linked to increased abdominal adiposity, whereas associations with longer weekend catch-up sleep were less consistent. These findings underscore the potential metabolic risk of insufficient sleep among female shift workers.<\/jats:p>","DOI":"10.3390\/diseases14020043","type":"journal-article","created":{"date-parts":[[2026,1,28]],"date-time":"2026-01-28T15:56:12Z","timestamp":1769615772000},"page":"43","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Association Between Workday Sleep Deprivation, Weekend Catch-Up Sleep, and Abdominal Adiposity Indicators: A Cross-Sectional Study Among Brazilian Female Fixed-Shift Workers"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1111-4890","authenticated-orcid":false,"given":"Anderson","family":"Garcez","sequence":"first","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Ci\u00eancias M\u00e9dicas: Endocrinologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-264, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1944-0140","authenticated-orcid":false,"given":"Sofia","family":"Vilela","sequence":"additional","affiliation":[{"name":"EPIUnit\/ITR, Instituto de Sa\u00fade P\u00fablica da Universidade do Porto, Universidade do Porto (UP), 4050-600 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1354-3998","authenticated-orcid":false,"given":"Jana\u00edna Cristina","family":"da Silva","sequence":"additional","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Sa\u00fade Coletiva, Universidade do Vale do Rio dos Sinos (Unisinos), S\u00e3o Leopoldo 93022-000, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8765-0759","authenticated-orcid":false,"given":"Ingrid St\u00e4hler","family":"Kohl","sequence":"additional","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Ci\u00eancias M\u00e9dicas: Endocrinologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-264, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1279-7080","authenticated-orcid":false,"given":"Harrison Canabarro de","family":"Arruda","sequence":"additional","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Alimenta\u00e7\u00e3o, Nutri\u00e7\u00e3o e Sa\u00fade, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-264, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3950-4594","authenticated-orcid":false,"given":"Maria Teresa Anselmo","family":"Olinto","sequence":"additional","affiliation":[{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Ci\u00eancias M\u00e9dicas: Endocrinologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-264, Brazil"},{"name":"Programa de P\u00f3s-Gradua\u00e7\u00e3o em Alimenta\u00e7\u00e3o, Nutri\u00e7\u00e3o e Sa\u00fade, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-264, Brazil"}]}],"member":"1968","published-online":{"date-parts":[[2026,1,28]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1420","DOI":"10.1017\/S0007114521000064","article-title":"Abdominal obesity and risk of CVD: A dose-response meta-analysis of thirty-one prospective studies","volume":"126","author":"Xue","year":"2021","journal-title":"Br. 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