{"id":"W3189408477","doi":"10.1017/ice.2021.369","title":"Impact of coronavirus disease 2019 (COVID-19) pre-test probability on positive predictive value of high cycle threshold severe acute respiratory coronavirus virus 2 (SARS-CoV-2) real-time reverse transcription polymerase chain reaction (RT-PCR) test results","year":2021,"lang":"en","type":"article","venue":"Infection Control and Hospital Epidemiology","topic":"SARS-CoV-2 detection and testing","field":"Medicine","cited_by":6,"is_retracted":false,"has_abstract":true,"ca_institutions":"Sinai Health System; Impact; Public Health Ontario; Hospital for Sick Children; Queen's University; McMaster University; University Health Network; University of Toronto","funders":"","keywords":"Coronavirus disease 2019 (COVID-19); Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Coronavirus; Virology; 2019-20 coronavirus outbreak; Medicine; Reverse transcription polymerase chain reaction; Betacoronavirus; Predictive value; Disease; Biology; Infectious disease (medical specialty); Internal medicine; Gene; Gene expression","routes":{"ca_aff":true,"ca_fund":false,"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":[0.002600177,0.0003945301,0.0003025067,0.0004503237,0.0003466205,0.0009004917,0.0004241338,0.0005910489,0.001576796],"category_scores_gemma":[0.01478579,0.0001906508,0.0003781902,0.000309197,0.0005357593,0.0006477649,0.0004834796,0.0006211095,0.0003440078],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003668196,"about_ca_system_score_gemma":0.0004457554,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002311679,"about_ca_topic_score_gemma":0.002617544,"domain_scores_codex":[0.9981282,0.0006290056,0.0001719631,0.0003720653,0.0004726738,0.0002259921],"domain_scores_gemma":[0.9885693,0.007867052,0.001511787,0.0004108297,0.0008401611,0.0008009239],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0003921902,0.00005697926,0.9948428,0.000009845429,0.00002257117,0.00006545832,0.00003630828,0.000216989,0.0004994833,0.00001306906,0.0000971068,0.003747241],"study_design_scores_gemma":[0.0000126256,0.001028653,0.9919016,0.00001041051,0.00004668408,0.0006827717,0.0001415908,0.004505357,0.001396341,0.00004479556,0.0002219438,0.000007260294],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9984719,0.000198739,0.0003791259,0.0001066351,0.00002277755,0.0000105189,0.000141651,0.00002006588,0.0006485662],"genre_scores_gemma":[0.9996227,0.00001699075,0.0001663032,0.00002564972,0.000007902564,0.000003840187,0.00009936687,0.000001961654,0.0000552635],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.002600177,"threshold_uncertainty_score":0.01375121,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.04402101894586377,"score_gpt":0.3557295029231497,"score_spread":0.3117084839772859,"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."}}