{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"institution":[{"name":"medRxiv"}],"indexed":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T13:35:31Z","timestamp":1768570531850,"version":"3.49.0"},"posted":{"date-parts":[[2025,8,21]]},"group-title":"Psychiatry and Clinical Psychology","reference-count":65,"publisher":"openRxiv","license":[{"start":{"date-parts":[[2025,8,21]],"date-time":"2025-08-21T00:00:00Z","timestamp":1755734400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.medrxiv.org\/about\/FAQ#license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"accepted":{"date-parts":[[2025,8,21]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                <jats:sec>\n                  <jats:title>Background<\/jats:title>\n                  <jats:p>Retinal alterations and related health\/cognitive profiles are reported in psychosis spectrum disorders (PSD), but it is unknown whether multivariate retina\u2013biopsychosocial covariations can identify biologically distinct subgroups.<\/jats:p>\n                <\/jats:sec>\n                <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>Layer-resolved retinal thicknesses were obtained from macula-centered optical coherence tomography (OCT) scans using UK Biobank data from 476 adults (238 PSD, 238 age- and sex-matched controls). Biopsychosocial measures included sociodemographic\/economic, cardiometabolic, ocular, and cognitive measures. Canonical correlation analysis (CCA) was employed to characterize patterns of covariation between retinal and biopsychosocial measures. Statistically reliable retina\u2013biopsychosocial covariations were hierarchically clustered to derive subgroups, which were compared across various profiles using general linear models with false-discovery rate (FDR) correction.<\/jats:p>\n                <\/jats:sec>\n                <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>\n                    CCA revealed a multivariate retinal\u2013biopsychosocial association pattern (r=0.468, 95% CI=0.410-0.527, p&lt;.0001) linking lower retinal thickness, primarily outer-layers with greater socioeconomic deprivation, higher BMI, poorer visual acuity and lower cognitive performance. Hierarchical clustering of CCA projections based on this multivariate pattern identified 2 internally stable groups. Patients in cluster 1 (retina-preserved, 43.7% PSD, 81.9% controls) were cytoarchitecturally and systemically similar to controls, except for thicker nerve fiber layer (RNFL, Cohen\u2019s\n                    <jats:italic>d<\/jats:italic>\n                    =0.32, p\n                    <jats:sub>FDR<\/jats:sub>\n                    =0.0093). Cluster 2 (retina-impaired) had significantly more participants with PSD (76% PSD) and they exhibited lower thicknesses across total macula (\n                    <jats:italic>d<\/jats:italic>\n                    =-0.80,\n                    <jats:italic>p<\/jats:italic>\n                    <jats:sub>FDR<\/jats:sub>\n                    =5.64\u00d710\n                    <jats:sup>\u221212<\/jats:sup>\n                    ), RNFL (\n                    <jats:italic>d<\/jats:italic>\n                    =-0.39,\n                    <jats:italic>p<\/jats:italic>\n                    <jats:sub>FDR<\/jats:sub>\n                    =0.0009), and photoreceptor layers (\n                    <jats:italic>d<\/jats:italic>\n                    =-0.42 to -1.06,\n                    <jats:italic>p<\/jats:italic>\n                    <jats:sub>FDR<\/jats:sub>\n                    &lt;.0001), and were also characterized by lower socioeconomic status (\n                    <jats:italic>d=<\/jats:italic>\n                    -0.71 to -1.35,\n                    <jats:italic>p<\/jats:italic>\n                    <jats:sub>FDR<\/jats:sub>\n                    &lt;.0001).\n                  <\/jats:p>\n                <\/jats:sec>\n                <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>Integrating layer-resolved OCT with biopsychosocial measures can noninvasively stratify PSD into biologically meaningful subgroups, underscoring the translational potential of retinal microstructure for precision psychiatry beyond symptom-based classifications.<\/jats:p>\n                <\/jats:sec>","DOI":"10.1101\/2025.08.18.25333918","type":"posted-content","created":{"date-parts":[[2025,8,21]],"date-time":"2025-08-21T18:50:11Z","timestamp":1755802211000},"source":"Crossref","is-referenced-by-count":0,"title":["Hierarchical Clustering of Canonical Retinal\u2013Biopsychosocial Covariation Patterns Reveals Distinct 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