{"id":"W4409185034","doi":"10.1136/bmjopen-2025-100391","title":"Protocol for a multisite, observational clinical study of the association between skin colour and pulse oximeter accuracy in children undergoing cardiac catheterisation (PACH study)","year":2025,"lang":"en","type":"article","venue":"BMJ Open","topic":"Non-Invasive Vital Sign Monitoring","field":"Engineering","cited_by":2,"is_retracted":false,"has_abstract":true,"ca_institutions":"Institute for Clinical Evaluative Sciences","funders":"National Heart, Lung, and Blood Institute; National Institutes of Health","keywords":"Medicine; Observational study; Protocol (science); Pulse oximetry; Research design; Sample size determination; Emergency medicine; Internal medicine; Pathology; Alternative medicine; Statistics; Psychiatry","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":[0.05685536,0.003819674,0.005040165,0.002551085,0.004479743,0.003455011,0.004325002,0.005348923,0.08998596],"category_scores_gemma":[0.06643854,0.003658308,0.003281069,0.003294507,0.002861138,0.003355612,0.00284636,0.006637569,0.02409975],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00566146,"about_ca_system_score_gemma":0.02289194,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003450145,"about_ca_topic_score_gemma":0.007379669,"domain_scores_codex":[0.9557679,0.02681975,0.008125037,0.003744506,0.003768816,0.001773944],"domain_scores_gemma":[0.948978,0.01061963,0.007928326,0.009512141,0.01745986,0.005502063],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"not_applicable","study_design_gemma":"observational","study_design_scores_codex":[0.2703274,0.02054884,0.01196187,0.05670827,0.002415464,0.002683236,0.004706106,0.005734662,0.009117043,0.02902076,0.4258109,0.1609655],"study_design_scores_gemma":[0.3301581,0.03675769,0.05845189,0.0354034,0.001411675,0.001121737,0.001944856,0.007274861,0.004821062,0.01790382,0.5036872,0.001063654],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"protocol","genre_gemma":"protocol","genre_scores_codex":[0.0009121879,0.0001264488,0.002573203,0.0003066454,0.0003998532,0.9909813,0.003344032,0.0000816191,0.001274761],"genre_scores_gemma":[0.001013398,0.00006338029,0.002365271,0.0001922162,0.00006238227,0.9955407,0.0004991152,0.000007046393,0.0002565355],"genre_candidate":"protocol","genre_consensus":"protocol","teacher_disagreement_score":0.08998596,"threshold_uncertainty_score":0.301033,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1299884216429307,"score_gpt":0.4450750778452638,"score_spread":0.3150866562023331,"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."}}