{"id":"W3085419873","doi":"10.9778/cmajo.20200148","title":"Effect of COVID-19 on computed tomography usage and critical test results in the emergency department: an observational study","year":2020,"lang":"en","type":"article","venue":"CMAJ Open","topic":"Ultrasound in Clinical Applications","field":"Medicine","cited_by":13,"is_retracted":false,"has_abstract":true,"ca_institutions":"McMaster University; NOSM University; York Central Hospital; Hamilton Health Sciences; Thunder Bay Regional Health Sciences Centre","funders":"","keywords":"Pandemic; Medicine; Observational study; Coronavirus disease 2019 (COVID-19); Emergency department; Poisson regression; Computed tomography; Retrospective cohort study; Test (biology); Emergency medicine; Radiology; Internal medicine; Disease; Population; Infectious disease (medical specialty); Nursing","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":true,"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":[0.001354711,0.0002667705,0.000420159,0.0008986789,0.0006649306,0.0008159871,0.0005938191,0.0007310646,0.001747616],"category_scores_gemma":[0.00646737,0.000435073,0.0006390991,0.002233361,0.0005279729,0.0007729944,0.0007588649,0.0009462833,0.0002319424],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001572245,"about_ca_system_score_gemma":0.001549153,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.03736237,"about_ca_topic_score_gemma":0.04457107,"domain_scores_codex":[0.9981979,0.0004214642,0.0003316115,0.0003213837,0.0004069465,0.0003207584],"domain_scores_gemma":[0.9889654,0.002258051,0.006458822,0.0004735602,0.000674736,0.001169533],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00006608106,0.00002639226,0.9994403,0.000009046059,0.00002550022,0.00004114446,0.00007216899,0.000006299744,0.00003186324,0.000004000582,0.00005352368,0.0002237177],"study_design_scores_gemma":[0.000004285371,0.0000814943,0.9993066,0.000007840335,0.0000143097,0.0001372275,0.0003028897,0.00003911239,0.0000158546,0.000004054083,0.00008291314,0.000003424079],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9990746,0.0002009873,0.00003170424,0.00004228935,0.000003501491,0.0000128336,0.0004032628,0.000001265505,0.0002296207],"genre_scores_gemma":[0.9992738,0.0001299378,0.0000496016,0.00005321074,0.00001120134,0.00001603752,0.0004071297,0.000001677191,0.0000574255],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.03736237,"threshold_uncertainty_score":0.0742898,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.2130778657729672,"score_gpt":0.472404953687076,"score_spread":0.2593270879141087,"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."}}