{"id":"W3120038138","doi":"10.1186/s12985-021-01489-0","title":"False negative rate of COVID-19 PCR testing: a discordant testing analysis","year":2021,"lang":"en","type":"article","venue":"Virology Journal","topic":"SARS-CoV-2 detection and testing","field":"Medicine","cited_by":218,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Calgary; Alberta Health Services; Calgary Laboratory Services; Foothills Medical Centre; Alberta Hospital Edmonton; Vancouver General Hospital; Vancouver Coastal Health; University of Alberta Hospital; University of Alberta","funders":"","keywords":"Biology; Virology; Coronavirus disease 2019 (COVID-19); 2019-20 coronavirus outbreak; Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Medicine; Infectious disease (medical specialty); Pathology; Outbreak","routes":{"ca_aff":true,"ca_fund":false,"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":[0.03128709,0.00109888,0.0009977891,0.003715363,0.0007715332,0.002365022,0.002178579,0.001573141,0.001003288],"category_scores_gemma":[0.1275201,0.0006748777,0.001149138,0.001223014,0.002236439,0.001267103,0.001519356,0.00112882,0.000543886],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00117967,"about_ca_system_score_gemma":0.0005712397,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001890461,"about_ca_topic_score_gemma":0.0009583977,"domain_scores_codex":[0.9413296,0.02323293,0.009212467,0.007335438,0.01694565,0.001944035],"domain_scores_gemma":[0.8161045,0.1145172,0.03558445,0.01322531,0.01871644,0.001852068],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0008456537,0.00009023136,0.9868886,0.0001015419,0.000205063,0.001418342,0.0004841328,0.000537722,0.001533355,0.0002142262,0.0004749203,0.007206108],"study_design_scores_gemma":[0.0001190714,0.002267924,0.8643676,0.0002655514,0.001184126,0.04922637,0.001386616,0.04205605,0.03270973,0.001068168,0.005186311,0.0001625364],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9838406,0.001860135,0.008466273,0.0002203838,0.0001805517,0.0002304107,0.0004645878,0.0001341005,0.004603006],"genre_scores_gemma":[0.9955192,0.00009266337,0.00364728,0.0001493793,0.00004496623,0.0000373633,0.0003193898,0.00002662652,0.0001630391],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.03128709,"threshold_uncertainty_score":0.1654639,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1004199230912541,"score_gpt":0.3505728323410183,"score_spread":0.2501529092497642,"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."}}