{"id":"W2079560246","doi":"10.1002/pds.1614","title":"Exclusion of immortal person‐time","year":2008,"lang":"en","type":"letter","venue":"Pharmacoepidemiology and Drug Safety","topic":"Statistical Methods in Clinical Trials","field":"Mathematics","cited_by":14,"is_retracted":false,"has_abstract":false,"ca_institutions":"McGill University","funders":"","keywords":"Biostatistics; Epidemiology; Medicine; Public health; Pharmacoepidemiology; Observational study; Family medicine; Library science; Gerontology; Medical prescription; Pathology; Computer science","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":[0.109815,0.0005458666,0.002728847,0.001283022,0.001602934,0.002081645,0.002047109,0.00797153,0.007452269],"category_scores_gemma":[0.2994576,0.0006570992,0.002530655,0.00135472,0.004024089,0.0039815,0.003372879,0.01238828,0.002360411],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001438493,"about_ca_system_score_gemma":0.002987683,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001181276,"about_ca_topic_score_gemma":0.001665119,"domain_scores_codex":[0.911092,0.0652117,0.006601904,0.005474092,0.009924739,0.001695585],"domain_scores_gemma":[0.7242901,0.2233221,0.01129477,0.03079532,0.007578458,0.002719281],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"not_applicable","study_design_gemma":"not_applicable","study_design_scores_codex":[0.003247033,0.000208374,0.023231,0.001479115,0.0008284412,0.004827745,0.00307604,0.0007824256,0.0007719429,0.342489,0.3688104,0.2502484],"study_design_scores_gemma":[0.001547888,0.0004091719,0.01774015,0.00148517,0.0005182267,0.008327927,0.0005768672,0.009242489,0.002012886,0.5692515,0.3887585,0.0001292848],"study_design_candidate":"not_applicable","study_design_consensus":"not_applicable","genre_codex":"commentary","genre_gemma":"commentary","genre_scores_codex":[0.03148035,0.00846047,0.2236621,0.6659231,0.02060247,0.0009176513,0.00234677,0.0004692056,0.04613781],"genre_scores_gemma":[0.3419605,0.005358148,0.0511495,0.5264605,0.03625352,0.002928287,0.001590662,0.0004228411,0.03387605],"genre_candidate":"commentary","genre_consensus":"commentary","teacher_disagreement_score":0.109815,"threshold_uncertainty_score":0.5807644,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.4580469138931446,"score_gpt":0.5335704982226009,"score_spread":0.07552358432945633,"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."}}