{"id":"W2100154191","doi":"10.1016/j.contraception.2009.05.021","title":"Women seeking abortion underreport gestational age by an average of 1 week based on last menstrual period compared to ultrasound dating","year":2009,"lang":"en","type":"article","venue":"Contraception","topic":"Reproductive Health and Contraception","field":"Medicine","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of British Columbia","funders":"","keywords":"Medicine; Abortion; Obstetrics; Gestational age; Gestational period; Menstrual period; Gynecology; Ultrasound; Gestation; Pregnancy","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":[0.002207131,0.0002868858,0.0004492272,0.001460905,0.0005594562,0.0005648952,0.0004035121,0.0005357895,0.002223023],"category_scores_gemma":[0.01847421,0.0002955367,0.0005174759,0.001295427,0.000307665,0.000501823,0.0006508119,0.0005859852,0.0004076697],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003450855,"about_ca_system_score_gemma":0.000562594,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0120665,"about_ca_topic_score_gemma":0.01639096,"domain_scores_codex":[0.9978593,0.001027344,0.0002580299,0.0001759728,0.0004482321,0.0002311241],"domain_scores_gemma":[0.9808888,0.008223159,0.008120948,0.001008433,0.001245428,0.0005131706],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.000188423,0.00003202019,0.9897383,0.00004945027,0.00003976769,0.00005208426,0.0004855421,0.00001897562,0.0004566162,0.00005679215,0.0003775667,0.008504584],"study_design_scores_gemma":[0.00001259337,0.0001693929,0.9968645,0.00003547189,0.00006455671,0.0005488273,0.000776739,0.00009458901,0.0003554904,0.00007023308,0.001001158,0.000006384249],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9932647,0.001233503,0.000431484,0.0006981268,0.00008560548,0.00003326359,0.001007341,0.0000240376,0.003221848],"genre_scores_gemma":[0.9960206,0.0007512203,0.0009397135,0.0005134176,0.00006208796,0.00002705625,0.000715165,0.00001164833,0.000959033],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0120665,"threshold_uncertainty_score":0.02399254,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02858434967975926,"score_gpt":0.3094886278372841,"score_spread":0.2809042781575249,"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."}}