{"id":"W4411046375","doi":"10.1111/ppe.70010","title":"Placental Abruption and Perinatal Mortality: Abnormal Placentation and Spontaneous Abortion as Contributors to Left Truncation Bias","year":2025,"lang":"en","type":"article","venue":"Paediatric and Perinatal Epidemiology","topic":"Maternal and fetal healthcare","field":"Medicine","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"National Institute of Environmental Health Sciences; National Heart, Lung, and Blood Institute; National Institute on Aging; Centers for Disease Control and Prevention; Hospital for Sick Children; University of Toronto","keywords":"Medicine; Placentation; Placental abruption; Obstetrics; Abortion; Perinatal mortality; Pregnancy; Placenta; Fetus","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":["metaresearch"],"consensus_categories":[],"category_scores_codex":[0.07835292,0.0006663482,0.001029682,0.001069954,0.0007105106,0.002599191,0.002227319,0.001999646,0.003577306],"category_scores_gemma":[0.2329045,0.0005649216,0.003538831,0.001156671,0.002268064,0.001751624,0.00261966,0.002077293,0.0002204035],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002219203,"about_ca_system_score_gemma":0.004003612,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01031731,"about_ca_topic_score_gemma":0.006372308,"domain_scores_codex":[0.9392637,0.05131305,0.002365693,0.003617273,0.002380378,0.001059956],"domain_scores_gemma":[0.6042613,0.3459,0.03018239,0.01443026,0.003535962,0.001689947],"domain_codex":null,"domain_gemma":"methods","domain_candidate":"methods","domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.002075843,0.0001691444,0.7128323,0.001199954,0.005093687,0.001138778,0.00233813,0.1956595,0.0008537397,0.03472629,0.001779248,0.04213339],"study_design_scores_gemma":[0.0007271996,0.001529102,0.2857165,0.00213776,0.004242086,0.002183425,0.001021342,0.5695087,0.002793585,0.1247075,0.005119171,0.000313595],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7622596,0.006706981,0.2178882,0.00471032,0.0002706409,0.0008025119,0.001663491,0.0003229437,0.005375347],"genre_scores_gemma":[0.9905561,0.0004041577,0.007908781,0.0002984939,0.0000410564,0.0001579993,0.0002473872,0.00002174207,0.0003643376],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.9216471,"threshold_uncertainty_score":0.4143748,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03103401163431607,"score_gpt":0.3570833363327054,"score_spread":0.3260493246983893,"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."}}