{"id":"W4411263549","doi":"10.1016/j.pediatrneurol.2025.06.009","title":"Postural Orthostatic Tachycardia Syndrome and Vaccination: Navigating Causality, Diagnostic Hurdles, and Bias","year":2025,"lang":"en","type":"letter","venue":"Pediatric Neurology","topic":"Cardiovascular Syncope and Autonomic Disorders","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"Hôpital du Saint-Sacrement; Université du Québec à Montréal","funders":"Fonds de Recherche du Québec - Santé; Canadian Institutes of Health Research","keywords":"Causality (physics); Medicine; Postural Orthostatic Tachycardia Syndrome; Orthostatic vital signs; Tachycardia; Internal medicine; Physics; Blood pressure","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":"codex-gemma-dda1882f352a","candidate_categories":["metaepi_narrow"],"consensus_categories":[],"category_scores_codex":[0.0003379672,0.0004322107,0.001085358,0.0002777372,0.0001174157,0.00005866188,0.0001150746,0.0006327897,0.00003554039],"category_scores_gemma":[0.001043295,0.0004210847,0.000253326,0.0002930155,0.00008152118,0.000069841,0.0002770963,0.002047986,0.0000209562],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00003126848,"about_ca_system_score_gemma":0.0002396682,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0001898933,"about_ca_topic_score_gemma":0.000009235658,"domain_scores_codex":[0.9975389,0.0003436573,0.0005138115,0.00083187,0.0002845455,0.0004872096],"domain_scores_gemma":[0.9970117,0.002133723,0.0002057118,0.0004608659,0.00007996513,0.0001080475],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"not_applicable","study_design_gemma":"observational","study_design_scores_codex":[0.00005487298,0.00005585347,0.3478446,0.003601464,0.0008266355,0.02846656,0.0002212046,0.000006342365,0.000001323631,0.00002653138,0.6013892,0.01750537],"study_design_scores_gemma":[0.003092223,0.0007707577,0.6750503,0.00009636971,0.004947089,0.01469937,0.00002652636,0.00005854553,5.915127e-7,0.0003911717,0.3001257,0.0007413805],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"commentary","genre_scores_codex":[0.5659264,0.0163407,0.00001939271,0.4149365,0.001043033,0.000963184,0.00008044675,0.0001114486,0.0005789197],"genre_scores_gemma":[0.368088,0.01085442,0.0001243168,0.6155673,0.003362742,0.0001391891,0.0008183657,0.0001196705,0.0009260138],"genre_candidate":"commentary","genre_consensus":null,"teacher_disagreement_score":0.3272057,"threshold_uncertainty_score":0.9998241,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01331157691467503,"score_gpt":0.2569163559670213,"score_spread":0.2436047790523463,"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."}}