{"id":"W4417182379","doi":"10.1192/bjp.2025.10480","title":"Trends in annual and lifetime prevalence of child and adolescent mental health service use in the UK between 1991 and 2023: Welsh healthcare register linkage study","year":2025,"lang":"en","type":"article","venue":"The British Journal of Psychiatry","topic":"Child and Adolescent Health","field":"Health Professions","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"Hospital for Sick Children; Child, Adolescent and Family Mental Health; University of Toronto; Centre for Addiction and Mental Health","funders":"Department of Psychiatry, University of Toronto; University College London; University of Toronto; Oulun Yliopisto; Hospital for Sick Children; University of New South Wales; Swansea University; Trinity College Dublin; University College Dublin; Cardiff University; University of Glasgow; Public Health Wales","keywords":"Welsh; Mental health; Mental healthcare; Register (sociolinguistics); Linkage (software); Young adult; Health care; Mental health service","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.002244551,0.0003837256,0.0009246665,0.003639741,0.0007294171,0.001348226,0.001133105,0.001084218,0.003078014],"category_scores_gemma":[0.006344595,0.000768458,0.001074325,0.009479578,0.0004058749,0.001293067,0.002131194,0.000989377,0.00130653],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.003046082,"about_ca_system_score_gemma":0.002588089,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.3119913,"about_ca_topic_score_gemma":0.3489065,"domain_scores_codex":[0.9966535,0.0007206965,0.0008493738,0.0005463053,0.0006874442,0.0005427629],"domain_scores_gemma":[0.9942226,0.0008289965,0.002571007,0.0004160898,0.001444449,0.0005170021],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0002726202,0.00005810629,0.9877006,0.0003287672,0.0002199506,0.000313299,0.0009420511,0.0001088401,0.0001798859,0.00005502573,0.004459704,0.005361151],"study_design_scores_gemma":[0.00002082439,0.00003328594,0.9980943,0.00008336374,0.0000337482,0.000138007,0.0003699159,0.00009419632,0.00002939985,0.00001004103,0.001082553,0.00001041826],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9164556,0.002299341,0.0003512654,0.0004530976,0.00005501919,0.0001540497,0.07813062,0.00004176321,0.002059142],"genre_scores_gemma":[0.9375308,0.002242926,0.0006376393,0.000504268,0.0000453457,0.0007658151,0.05554664,0.00003281502,0.002693819],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.3119913,"threshold_uncertainty_score":0.6203507,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0280683630775464,"score_gpt":0.3681134349062974,"score_spread":0.340045071828751,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}