Evidence map›Paper›PMID 28088194›Full record

ArticleBMC pregnancy and childbirth2017

Testing a cognitive model to predict posttraumatic stress disorder following childbirth.

Lydia King, Kirstie McKenzie-McHarg, Antje Horsch

Abstract readValidation Study
In one paragraph

Article in BMC pregnancy and childbirth, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Lydia KingThe Oxford Institute of Clinical Psychology Training, Isis Education Centre, Warneford Hospital, Oxford, OX3 7JX, UK.
Kirstie McKenzie-McHargDepartment of Clinical Health Psychology, Warwick Hospital, Lakin Rd, Warwick, CV34 5BW, UK.
Antje HorschDepartment of Maternal and Child Health, University Hospital Lausanne, Avenue Pierre-Decker 2, CH-1011, Lausanne, Switzerland. antje.horsch@chuv.ch.ORCID 0000-0002-9950-9661

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOne third of women describes their childbirth as traumatic and between 0.8 and 6.9% goes on to develop posttraumatic stress disorder (PTSD). The cognitive model of PTSD has been shown to be applicable to a range of trauma samples. However, childbirth is qualitatively different to other trauma types and special consideration needs to be taken when applying it to this population. Previous studies have investigated some cognitive variables in isolation but no study has so far looked at all the key processes described in the cognitive model. This study therefore aimed to investigate whether theoretically-derived variables of the cognitive model explain unique variance in postnatal PTSD symptoms when key demographic, obstetric and clinical risk factors are controlled for.

methodOne-hundred and fifty-seven women who were between 1 and 12 months post-partum (M = 6.5 months) completed validated questionnaires assessing PTSD and depressive symptoms, childbirth experience, postnatal social support, trauma memory, peritraumatic processing, negative appraisals, dysfunctional cognitive and behavioural strategies and obstetric as well as demographic risk factors in an online survey.

resultsA PTSD screening questionnaire suggested that 5.7% of the sample might fulfil diagnostic criteria for PTSD. Overall, risk factors alone predicted 43% of variance in PTSD symptoms and cognitive behavioural factors alone predicted 72.7%. A final model including both risk factors and cognitive behavioural factors explained 73.7% of the variance in PTSD symptoms, 37.1% of which was unique variance predicted by cognitive factors.

conclusionsAll variables derived from Ehlers and Clark's cognitive model significantly explained variance in PTSD symptoms following childbirth, even when clinical, demographic and obstetric were controlled for. Our findings suggest that the CBT model is applicable and useful as a way of understanding and informing the treatment of PTSD following childbirth.

Indexed as

Models, PsychologicalAdultCognitionDelivery, ObstetricFemaleHumansParturitionPostpartum PeriodPredictive Value of TestsPregnancyPuerperal DisordersStress Disorders, Post-TraumaticSurveys and QuestionnairesYoung AdultChildbirthCognitive modelCognitive predictorsPostnatalPTSDRisk factorsTraumatic

Identifiers

PMID28088194
PMCPMC5237569

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.