{"id":"W4416170494","doi":"10.1136/bmjopen-2025-101336","title":"COVID-19 antibody testing study: a nested substudy within Alberta’s Tomorrow Project (ATP) in Alberta, Canada","year":2025,"lang":"en","type":"article","venue":"BMJ Open","topic":"Long-Term Effects of COVID-19","field":"Medicine","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"Alberta Children's Hospital; Alberta Hospital Edmonton; Canadian Blood Services; University of Calgary; University of Alberta; Alberta Cancer Foundation","funders":"Health Canada; Partenariat Canadien Contre Le Cancer; Canadian Institutes of Health Research; Alberta Cancer Foundation; Alberta Health Services; Government of Alberta; Government of Canada; Public Health Agency of Canada; Public Health Agency; Alberta Precision Laboratories","keywords":"Pandemic; Cohort; Cohort study; Coronavirus disease 2019 (COVID-19); Epidemiology; Serology; Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":true,"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":[0.001516558,0.0006187367,0.0008407548,0.001137531,0.00505671,0.001430584,0.002075497,0.0007814975,0.002327776],"category_scores_gemma":[0.001469604,0.0006252847,0.0006847878,0.004009185,0.0009195632,0.000431939,0.0010807,0.001047167,0.0004794332],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.02142606,"about_ca_system_score_gemma":0.02756818,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9868282,"about_ca_topic_score_gemma":0.9936652,"domain_scores_codex":[0.9977497,0.0002081925,0.00009780464,0.0004076056,0.0007242951,0.0008123398],"domain_scores_gemma":[0.9983359,0.00007341663,0.000225389,0.0000973557,0.0007766705,0.0004912795],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0004948854,0.0001952356,0.9841249,0.0001272202,0.0002095453,0.0003218817,0.001330218,0.0001187808,0.0005330046,0.0002192505,0.006314167,0.006010865],"study_design_scores_gemma":[0.00008478072,0.0001143867,0.9956542,0.0001031834,0.0001246794,0.0001467114,0.001265003,0.00016887,0.00006812855,0.00004154848,0.00220932,0.00001917025],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9711929,0.002337286,0.0005636439,0.0006767832,0.00007773685,0.000830595,0.01764077,0.00003659576,0.006643794],"genre_scores_gemma":[0.9864323,0.001142793,0.0007936662,0.0008751476,0.00004604929,0.0003055062,0.007660123,0.00001633464,0.002728108],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.02142606,"threshold_uncertainty_score":0.1554577,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0611726856782206,"score_gpt":0.429734080032305,"score_spread":0.3685613943540844,"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."}}