{"id":"W4293483924","doi":"10.1136/bmjopen-2022-062567","title":"Seropositivity of SARS-CoV-2 in an unvaccinated cohort in British Columbia, Canada: a cross-sectional survey with dried blood spot samples","year":2022,"lang":"en","type":"article","venue":"BMJ Open","topic":"SARS-CoV-2 and COVID-19 Research","field":"Medicine","cited_by":7,"is_retracted":false,"has_abstract":true,"ca_institutions":"Women's Health Research Institute; BC Children's Hospital; University of British Columbia; BC Centre for Disease Control; Simon Fraser University; BC Cancer Agency","funders":"Michael Smith Health Research BC","keywords":"Medicine; Seroprevalence; Cross-sectional study; Demography; Cohort; Serology; Population; Herd immunity; Cohort study; Incidence (geometry); Dried blood spot; Epidemiology; Public health; Immunology; Environmental health; Antibody; Internal medicine; Pathology","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":[0.0003036834,0.0003540342,0.0003202934,0.0009183135,0.001511983,0.0006577345,0.0008132949,0.000338192,0.001532054],"category_scores_gemma":[0.0008558203,0.0004205509,0.0002245183,0.002120953,0.0003879015,0.0002553658,0.0004655147,0.0004646956,0.0003620535],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.006387116,"about_ca_system_score_gemma":0.005555459,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9760074,"about_ca_topic_score_gemma":0.9815471,"domain_scores_codex":[0.9995791,0.00003445431,0.00002917008,0.00009219255,0.0001653603,0.00009969105],"domain_scores_gemma":[0.9990708,0.00003854443,0.0001419302,0.00003630519,0.0004731797,0.0002391953],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0000347822,0.00003074625,0.9978161,0.00001457965,0.00002321856,0.00005691742,0.0001997251,0.00003307954,0.0002260803,0.000007291656,0.0004207196,0.001136803],"study_design_scores_gemma":[0.000002792772,0.00001918321,0.9992861,0.00000817479,0.000007355125,0.00004003215,0.0003481243,0.00007398571,0.00002646001,0.000002441176,0.0001832689,0.000002196152],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9961613,0.0001662882,0.00005561503,0.00005773173,0.000004876453,0.00004084134,0.002634045,0.00000614266,0.0008732292],"genre_scores_gemma":[0.9964523,0.0003111816,0.0001251651,0.00008655518,0.000003585126,0.00002937153,0.001876762,0.00000298497,0.001112088],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0239926,"threshold_uncertainty_score":0.04826772,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.110103929590791,"score_gpt":0.4074026476161854,"score_spread":0.2972987180253944,"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."}}