{"id":"W4410789468","doi":"10.1101/2025.05.25.25328318","title":"Effect of caesarean birth on perinatal mortality for singleton breech presentation in spontaneous preterm labour – a target trial emulation using Scottish health record data.","year":2025,"lang":"en","type":"preprint","venue":"medRxiv","topic":"Maternal and Perinatal Health Interventions","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto","funders":"Menzies School of Health Research; Glasgow Children’s Hospital Charity","keywords":"Singleton; Breech presentation; Obstetrics; Medicine; Emulation; Cephalic presentation; Perinatal mortality; Caesarean delivery; Presentation (obstetrics); Caesarean section; Pregnancy; Fetus; Psychology","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":[0.06559593,0.001572318,0.003295012,0.0008393531,0.0003064014,0.001296812,0.001683943,0.002128266,0.002929229],"category_scores_gemma":[0.1081628,0.0006584803,0.009368034,0.000954387,0.001237758,0.001900183,0.002195675,0.001779638,0.0002269213],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00197227,"about_ca_system_score_gemma":0.002223073,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001786392,"about_ca_topic_score_gemma":0.001851594,"domain_scores_codex":[0.8897904,0.09645656,0.00640997,0.002708147,0.003490548,0.0011444],"domain_scores_gemma":[0.9258018,0.04564656,0.01796111,0.006147963,0.003157822,0.001284848],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"randomized_trial","study_design_gemma":"observational","study_design_scores_codex":[0.8567482,0.002762148,0.0165745,0.0123402,0.04303637,0.0001750633,0.0004275796,0.003876056,0.001801863,0.00102205,0.000964534,0.06027148],"study_design_scores_gemma":[0.5178075,0.3279653,0.06480727,0.002307486,0.06520252,0.0002677345,0.0002297667,0.01227815,0.003317135,0.002086912,0.003526176,0.0002041529],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9578331,0.01746266,0.009671274,0.001524173,0.0007860977,0.008813201,0.001544573,0.0001544926,0.002210472],"genre_scores_gemma":[0.9887377,0.001472532,0.003958005,0.0005311315,0.0002166894,0.004018921,0.0006155567,0.00002021175,0.0004292783],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.06559593,"threshold_uncertainty_score":0.3469086,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.09349611679176352,"score_gpt":0.4391557445603781,"score_spread":0.3456596277686146,"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."}}