{"id":"W2995202370","doi":"10.1136/bmjopen-2019-033697","title":"Variation in relationships between maternal age at first birth and pregnancy outcomes by maternal race: a population-based cohort study in the United States","year":2019,"lang":"en","type":"article","venue":"BMJ Open","topic":"Global Maternal and Child Health","field":"Medicine","cited_by":62,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia","funders":"Institute of Health Services and Policy Research; Canadian Institutes of Health Research; Eunice Kennedy Shriver National Institute of Child Health and Human Development; Ministry of Health, British Columbia; Michael Smith Health Research BC","keywords":"Medicine; Gestational age; Population; Demography; Obstetrics; Advanced maternal age; Pregnancy; Cohort; Live birth; Small for gestational age; Cohort study; Fetus","routes":{"ca_aff":true,"ca_fund":true,"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":[0.002297489,0.0002363279,0.0003204669,0.0006251575,0.0004257782,0.0004864021,0.0004950511,0.000425074,0.0008362361],"category_scores_gemma":[0.00453662,0.0003854427,0.0006155596,0.001063892,0.0002380126,0.0003927591,0.0004890512,0.0004563009,0.0001215815],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003812614,"about_ca_system_score_gemma":0.0004459139,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.03306759,"about_ca_topic_score_gemma":0.04242354,"domain_scores_codex":[0.998841,0.0004266069,0.0001138581,0.0003358747,0.000155026,0.0001277464],"domain_scores_gemma":[0.9975941,0.0005199921,0.0009998832,0.0003799648,0.0003063039,0.0001996751],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00004173482,0.00001203329,0.9988005,0.000005013657,0.0001333781,0.00002314616,0.00007841573,0.00004999198,0.00009570129,0.0000257916,0.0001222266,0.0006119409],"study_design_scores_gemma":[0.000003010178,0.00002055403,0.9995416,0.000005854865,0.00003340779,0.0000465744,0.00006127603,0.0001558473,0.0000162207,0.00001518017,0.00009816923,0.000002305386],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9973909,0.0004143227,0.0003998259,0.00008158481,0.00001105397,0.00001528822,0.001390155,0.000007730606,0.0002892036],"genre_scores_gemma":[0.9986518,0.0001614536,0.0003010624,0.00004429601,0.000006704243,0.0000209006,0.0007043873,0.000002788461,0.0001066518],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.03306759,"threshold_uncertainty_score":0.06575024,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.04887485641134941,"score_gpt":0.3631055578788294,"score_spread":0.3142307014674799,"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."}}