{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T18:20:50Z","timestamp":1783707650153,"version":"3.55.0"},"reference-count":34,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T00:00:00Z","timestamp":1778198400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Psychiatry"],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Existing cross-cultural applications of the Athens Insomnia Scale-8 (AIS-8) have been constrained by sample limitations, most notably the absence of psychiatric inpatients in validation datasets. This gap underscores the need to contextualize the scale\u2019s performance within specialized clinical populations. Accordingly, this study aims to systematically assess the validity and reliability of the AIS-8 and characterize its psychometric properties among a sample of Chinese psychiatric inpatients, addressing an unmet critical need in cross-cultural insomnia assessment research.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A total of 519 psychiatric inpatients completed the Chinese version of the AIS-8, along with the Generalized Anxiety Disorder-7 (GAD-7) and Patient Health Questionnaire (PHQ-9). After excluding missing values, 411 participants were included in the final analysis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) revealed a two-factor model structure of \u201cnighttime sleep problems\u201d and \u201cdaytime dysfunction\u201d for the AIS-8 in Chinese psychiatric populations. Although the item \u201cdaytime sleepiness\u201d showed relatively low factor loadings, model fit deteriorated when this item was removed. Strict measurement invariance was established for gender, whereas age, marital status, and occupation exhibited only weak invariance. The AIS-8 demonstrated a Cronbach\u2019s alpha of 0.84, and convergent validity was supported by significant positive correlations with the PHQ-9 and GAD-7.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The Athens Insomnia Scale-8 (AIS-8) demonstrated acceptable reliability and validity in a sample of Chinese psychiatric inpatients, providing preliminary support for filling an important gap in its cross-cultural validation among specialized psychiatric populations. Given the study\u2019s geographical scope and sample characteristics, which represent inherent limitations, the findings tentatively suggest that the AIS-8 may be used as a reliable instrument for clinical insomnia assessment in Chinese psychiatric settings.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fpsyt.2026.1651778","type":"journal-article","created":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T04:48:13Z","timestamp":1778215693000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Validation and reliability of the Athens Insomnia Scale-8 in Chinese psychiatric inpatients"],"prefix":"10.3389","volume":"17","author":[{"given":"Wei","family":"Li","sequence":"first","affiliation":[{"name":"Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Third Hospital of Shanxi Medical University, Tongji Shanxi Hospital","place":["Taiyuan, 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