{"id":"W4412118466","doi":"10.1002/ajhb.70077","title":"Salivary/Serum Progesterone Ratio Differs Between Menstrual Cycle Phases but Not Between Populations: Implications for Health, Reproductive, and Behavioral Research","year":2025,"lang":"en","type":"article","venue":"American Journal of Human Biology","topic":"Menstrual Health and Disorders","field":"Medicine","cited_by":1,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia","funders":"Michigan State University; College of Engineering, Michigan State University; Indiana University","keywords":"Menstrual cycle; Luteal phase; Confounding; Population; Follicular phase; Physiology; Venous blood; Demography; Medicine; Blood sampling; Menstruation; Internal medicine; Hormone; Environmental health","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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0009446189,0.0001419876,0.0007077585,0.0004768957,0.0004882042,0.00001572565,0.0001308959,0.00006780345,0.000009222602],"category_scores_gemma":[0.0002169363,0.0001206646,0.00007686194,0.0003230476,0.0008758228,0.00007359283,0.00004659182,0.0003699528,6.416941e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001355441,"about_ca_system_score_gemma":0.0004489919,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0003968474,"about_ca_topic_score_gemma":0.00003401442,"domain_scores_codex":[0.997925,0.0003090214,0.0008352458,0.0003365224,0.0001281254,0.0004660552],"domain_scores_gemma":[0.9982276,0.0003177625,0.0004765965,0.0002903891,0.0003859663,0.0003017103],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0002642321,0.0001534362,0.8861163,0.00006489888,0.00007746355,7.965863e-7,0.0002640858,2.045442e-7,0.001984941,0.001225505,0.0009041993,0.108944],"study_design_scores_gemma":[0.001949469,0.009803212,0.9802943,0.00008661609,0.000112595,0.0000346421,0.00109406,9.144441e-7,0.000604229,0.005321641,0.000598496,0.00009981683],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9646614,0.000345897,0.0007110834,0.03319915,0.00007889629,0.0007901654,0.0001502479,0.00001636243,0.00004681789],"genre_scores_gemma":[0.9958573,0.00006030239,0.002868567,0.0006099592,0.0003546643,0.00004573931,0.0001217634,0.00001467735,0.00006703851],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1088441,"threshold_uncertainty_score":0.4920561,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.2460601226116627,"score_gpt":0.5494758885203932,"score_spread":0.3034157659087305,"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."}}