{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T10:37:26Z","timestamp":1753871846841,"version":"3.41.2"},"reference-count":41,"publisher":"Portland Press Ltd.","issue":"4","license":[{"start":{"date-parts":[[2020,3,26]],"date-time":"2020-03-26T00:00:00Z","timestamp":1585180800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["portlandpress.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2020,4,30]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Objective: We investigated the relationship between salivary cortisol level and the prevalence of depression 585 police officers working at the Police Departments of Beijing.<\/jats:p>\n               <jats:p>Method: Cross-sectional data were obtained from 585 Chinese police officers recruited from Beijing, China. Salivary cortisol was assayed using the chemiluminescence immunoassay. A multiple logistic regression analysis adjusted for potential confounders was used to assess independent associations between salivary cortisol level and depression.<\/jats:p>\n               <jats:p>Results: The median age of the included was 38 years (IQR, 29\u201345), 20.9% were female (n = 122). Finally, 15.6% (91\/585; 95% CI: 12.6\u201318.5%) were considered to have depression. The median salivary cortisol level was significantly higher in police with depression than those police without depression [14.5(IQR, 11.9\u201315.9) nmol\/l vs. 11.8(IQR, 9.4\u201314.2) nmol\/l; P &amp;lt; 0.001]. The depression distribution across the salivary cortisol quartiles ranged between 5.4% (first quartile) and 26.9% (fourth quartile), P for trend &amp;lt;0.001. In multivariate models comparing the second (Q2), third and fourth quartiles against the first quartile of the salivary cortisol, cortisol in Q3 and Q4 were associated with depression, and increased prevalence of depression by 148% (OR: 2.48; 95% CI: 1.55\u20133.86) and 277% (3.77; 2.12\u20135.36). Based on ROC curves, the optimal cutoff value of salivary cortisol level to diagnose the depression was 13.8 nmol\/l, which yielded the highest sensitivity and specificity [63.8% and 71.7%, respectively; area under the curve (AUC) = 0.695, 95% CI: 0.639\u20130.751; P &amp;lt; 0.0001].<\/jats:p>\n               <jats:p>Conclusions: The data showed that elevated levels of salivary cortisol were associated with increased prevalence of depression.<\/jats:p>","DOI":"10.1042\/bsr20193406","type":"journal-article","created":{"date-parts":[[2020,3,26]],"date-time":"2020-03-26T15:40:49Z","timestamp":1585237249000},"update-policy":"https:\/\/doi.org\/10.1042\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Salivary cortisol concentrations in police officers \u2013 a cross-sectional study in Beijing, China"],"prefix":"10.1042","volume":"40","author":[{"given":"Yanxia","family":"Zhang","sequence":"first","affiliation":[{"name":"Department of Public Health, Jining Psychiatric Hospital, Jining, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jie","family":"Liu","sequence":"additional","affiliation":[{"name":"Drug Rehabilitation Center, Jining Psychiatric Hospital, Jining, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yanqing","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of General Practice, Jining No.1 People\u2019s Hospital, Jining, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wei","family":"Lu","sequence":"additional","affiliation":[{"name":"Department of Psychiatry, Huilongguan Hospital, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1306-0120","authenticated-orcid":false,"given":"Ailian","family":"Hou","sequence":"additional","affiliation":[{"name":"Department of Neurology, Fuling Central Hospital, Chongqing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"288","published-online":{"date-parts":[[2020,4,9]]},"reference":[{"key":"2021111620065757200_B1","doi-asserted-by":"publisher","first-page":"421","DOI":"10.1108\/13639510210429446","article-title":"Routine occupational distress in police","volume":"25","author":"Liberman","year":"2002","journal-title":"Policing: An Int. 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