{"id":"W4416915889","doi":"10.21203/rs.3.rs-8117555/v1","title":"Live Births After Low Initial β-hCG in IVF Cycles: A Retrospective Cohort Study","year":2025,"lang":"en","type":"preprint","venue":"Research Square","topic":"Ectopic Pregnancy Diagnosis and Management","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"McMaster University; University Health Network; Queen's University","funders":"","keywords":"Live birth; Retrospective cohort study; In vitro fertilisation; Pregnancy; Logistic regression; Odds; Odds ratio; Embryo transfer; Receiver operating characteristic","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":[0.0008472743,0.0003455642,0.0005727717,0.001387895,0.0008776008,0.001135966,0.0006952245,0.0009768193,0.003581987],"category_scores_gemma":[0.005219328,0.0007403627,0.0007438443,0.001741802,0.0005230642,0.001014043,0.0007053078,0.0007789696,0.0006072434],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004612966,"about_ca_system_score_gemma":0.000781279,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00794902,"about_ca_topic_score_gemma":0.005304488,"domain_scores_codex":[0.9991374,0.0001998331,0.0001046686,0.0002841772,0.0001121992,0.0001616982],"domain_scores_gemma":[0.9978109,0.0007074664,0.0006745742,0.0003323604,0.0001754997,0.0002992883],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001800008,0.00006092179,0.9982407,0.000008743174,0.00006043731,0.0003173355,0.0001255362,0.00001923547,0.00009306488,0.00002924841,0.0001242442,0.0007405154],"study_design_scores_gemma":[0.00003040409,0.0002678214,0.9965698,0.0000231563,0.00009758747,0.001607996,0.0007497824,0.0001331067,0.00006521287,0.00006093058,0.0003802326,0.00001400266],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9985058,0.0003817192,0.00008700022,0.0000318504,0.000007082616,0.0000142695,0.0006395055,0.000003053466,0.0003297393],"genre_scores_gemma":[0.9980479,0.000393193,0.00009225284,0.00005036085,0.00001480135,0.00002422519,0.0009168136,0.000006411334,0.000454018],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.00794902,"threshold_uncertainty_score":0.01580548,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.04317546393282839,"score_gpt":0.4286822035147324,"score_spread":0.385506739581904,"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."}}