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Record W2189938958 · doi:10.1136/bmj.h6666

Mental health problems contribute to a quarter of “later” maternal deaths after childbirth

2015· article· en· W2189938958 on OpenAlexaboutno aff
Nigel Hawkes

Bibliographic record

VenueBMJ · 2015
Typearticle
Languageen
FieldPsychology
TopicGrief, Bereavement, and Mental Health
Canadian institutionsnot available
Fundersnot available
KeywordsQuarter (Canadian coin)ChildbirthMental healthPsychologyMaternal healthMedicinePsychiatryPregnancyObstetricsEnvironmental healthHistoryHealth servicesPopulation

Abstract

fetched live from OpenAlex

Maternal deaths in the United Kingdom have continued to fall, but more could be done to prevent suicides during pregnancy or in the first year after birth, the Confidential Enquiry into Maternal Deaths has found.1 While direct deaths—those caused by sepsis, eclampsia, thrombosis, or haemorrhage, for example—halved from 2003-05 to 2011-13, the number of indirect deaths showed little change. Women born outside the UK accounted for a quarter of the total deaths, but their risk of dying was not notably different in 2011-13 from those born in the UK. Over this three year period the inquiry showed 69 direct deaths and a further 145 indirect deaths from causes such as cardiac disease, flu, or pneumonia. The corresponding figures from 2003-05 were 132 direct deaths and 163 indirect deaths. Total maternities rose from 2.11 million in 2003-05 …

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.003
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.029
Threshold uncertainty score0.057

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.003
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0010.001
Science and technology studies0.0010.000
Scholarly communication0.0010.000
Open science0.0000.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0100.001

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 head0.028
GPT teacher head0.357
Teacher spread0.328 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), 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

Citations0
Published2015
Admission routes1
Has abstractyes

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