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Association of timing of birth with mortality among preterm infants born in Canada
Angelo Rizzolo, Prakesh S. Shah, Valérie Bertelle, Hala Makary, Xiang Y. Ye, Haim A. Abenhaim, Bruno Piedbœuf, Marc Beltempo, Jehier Afifi, Ruben Alvaro, James E. Andrews, Anthony Armson, François Audibert, Khalid Aziz, Marilyn Ballantyne, Jon Barrett, Anick Bérard, Lucie Blais, Alan Bocking, Jaya Bodani, Jason Burrows, Kimberly Butt, Roderick Canning, George Carson, Nils Chaillet, Sue Chandra, Paige Church, Zenon Cieslak, Kevin Coughlin, Joan Crane, Dianne Creighton, Orlando da Silva, Thierry Daboval, Leanne Dahlgren, Sibasis Daspal, Cecilia de Cabo, Akhil Deshpandey, Kimberly Dow, Christine Drolet, Michael Dunn, Salhab el Helou, Darine El‐Chaâr, Walid El‐Naggar, Carlos Fajardo, Jonathan K. Foster, Robert Gagnon, Rob Gratton, Victor K. M. Han, Adele Harrison, Shabih U. Hasan, Michael Helewa, Matthew Hicks, K.S. Joseph, Andrzej Kajetanowicz, Zarin Kalapesi, May Khairy, Thierry Lacaze‐Masmonteil, Kyong‐Soon Lee, Brigitte Lemyre, Abhay Lodha, Deepak Louis, Thuy Mai Luu, Linh Ly, Annette Majnemer, Isabelle Marc, Édith Massé, Sarah D. McDonald, Doug McMillan, Nir Melamed, Amy Metcalfe, Diane Moddemann, Luis Monterrosa, Michelle Morais, Amit Mukerji, William Mundle, Kellie E. Murphy, Anne Monique Nuyt, Chuks Nwaesei, Karel O’Brien, Martin Offringa, Cecil Ojah, Annie Ouellet, Jean‐Charles Pasquier, Petros Pechlivanoglou, Ermelinda Pelausa, Élodie Portales-Casamar, Shahirose Premji, Pramod Puligandla, Eleanor Pullenayegum, Amber Reichert, Kate Robson, Carol Schneider, Mary Seshia, Vibhuti Shah, Rebecca Sherlock, Sandesh Shivananda, Nalini Singhal, Erik D. Skarsgard, Amanda Skoll, Graeme N. Smith, Anne Synnes, Katherine Thériault, Joseph Ting, Suzanne Tough, Jennifer Toye, Jagdeep Ubhi, Michael Vincer, Wendy Whittle, Hilary Whyte, Doug Wilson, Stephen Wood, Wendy Yee, Jill G. Zwicker
Bibliographic record
VenueJournal of Perinatology · 2021
Typearticle
Languageen
FieldMedicine
TopicInfant Development and Preterm Care
Canadian institutionsGlenrose Rehabilitation HospitalBC Children's HospitalWindsor Regional HospitalMcMaster UniversityVictoria General HospitalHospital for Sick ChildrenWestern UniversityCentre hospitalier universitaire de QuébecKingston General HospitalCape Breton Regional HospitalUniversity of ManitobaChildren's Hospital of Eastern OntarioAlberta Children's HospitalUniversity of AlbertaJaneway Children's Health and Rehabilitation CentreUniversity of CalgaryHealth Sciences CentreCentre Hospitalier Universitaire Sainte-JustineMoncton HospitalUniversity of TorontoRegina General HospitalRoyal Columbian HospitalSt. Boniface HospitalUniversité de MontréalHamilton Health SciencesRoyal University HospitalIzaak Walton Killam Health CentreRoyal Alexandra HospitalUniversity of British ColumbiaSaint John Regional HospitalHolland Bloorview Kids Rehabilitation HospitalUniversité LavalMcGill University Health CentreLondon Health Sciences CentreMcGill UniversityChildren's & Women's Health Centre of British ColumbiaSunnybrook Health Science CentreAlberta Health ServicesJewish General HospitalMount Sinai HospitalMontreal Children's HospitalB.C. Women's Hospital & Health CentreFoothills Medical CentreUniversité de SherbrookeSurrey Memorial HospitalCentre Hospitalier Universitaire de SherbrookeDr. Everett Chalmers Regional Hospital
FundersCanadian Institutes of Health ResearchGovernment of Canada
KeywordsMedicineOdds ratioGestational agePremature birthLogistic regressionEveningGestationPopulationObstetricsPediatricsPregnancyDemographyInternal medicine
Abstract
No abstract in any covered source. Its absence is recorded, not treated as a negative.
No abstract. This is not a gap in this database; OpenAlex has none either. 23.3% of the frame is in this state, and the screen finds HALF as much metaresearch here, so the absence is a measured bias rather than a missing field.
How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.311
Threshold uncertainty score0.981
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
Opus teacher head0.011
GPT teacher head0.251
Teacher spread0.240 · how far apart the two teachers sit on this one work
Validation status
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".
Quick stats
Citations14
Published2021
Admission routes3
Has abstractno