Evidence map›Paper›PMID 29222135›Full record

Trial reportBMJ open2017

Ambulatory versus inpatient management of severe nausea and vomiting of pregnancy: a randomised control trial with patient preference arm.

Nicola Mitchell-Jones, Jessica Alice Farren, Aurelio Tobias, Tom Bourne, Cecilia Bottomley

Open access · goldAbstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in BMJ open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
2.7field-weighted citation impact, top 9% of its field
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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 31 citations in OpenAlex.

  1. Treatments for hyperemesis gravidarum: A systematic review.Acta obstetricia et gynecologica Scandinavica · 2024
    Pooled it
  2. Pooled it
  3. Effects of treatment, choice, and preference on health-related quality-of-life outcomes in patients with posttraumatic stress disorder (PTSD).Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2018
    Trial
  4. Review
  5. Article
  6. The impact and management of hyperemesis gravidarum: Current and future perspectives.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025
    Review
  7. Article
  8. Hyperemesis in Pregnancy: Complications and Treatment.Medical sciences (Basel, Switzerland) · 2025
    Review
  9. Diagnosis and treatment of hyperemesis gravidarum.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2024
    Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. ISUOG Consensus Statement on rationalization of early-pregnancy care and provision of ultrasonography in context of SARS-CoV-2.Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology · 2020
    Article
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

5 authors at 4 institutions in 2 countries.

Nicola Mitchell-JonesDepartment of Obstetrics and Gynaecology, Chelsea and Westminster Hospital, London, UK.
Jessica Alice FarrenDepartment of Surgery and Cancer, Imperial College London, London, UK.
Aurelio TobiasInstitute of Metabolism and Systems Research (IMSR), University of Birmingham, Birmingham Women's NHS Foundation Trust, Birmingham, UK.
Tom BourneDepartment of Surgery and Cancer, Imperial College London, London, UK.
Cecilia BottomleyDepartment of Obstetrics and Gynaecology, Chelsea and Westminster Hospital, London, UK.
Chelsea and Westminster Hospital · GBBirmingham Women’s and Children’s NHS Foundation Trust · GBImperial College London · GBMiscarriage Association · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo determine whether ambulatory (outpatient (OP)) treatment of severe nausea and vomiting of pregnancy (NVP) is as effective as inpatient (IP) care.

designNon-blinded randomised control trial (RCT) with patient preference arm.

settingTwo multicentre teaching hospitals in London.

participantsWomen less than 20 weeks' pregnant with severe NVP and associated ketonuria (>1+).

methodsWomen who agreed to the RCT were randomised via web-based application to either ambulatory or IP treatment. Women who declined randomisation underwent the treatment of their choice in the patient preference trial (PPT) arm. Treatment protocols, data collection and follow-up were the same for all participants.

main outcome measuresPrimary outcome was reduction in Pregnancy Unique Quantification of Emesis (PUQE) score 48 hours after starting treatment. Secondary outcome measures were duration of treatment, improvement in symptom scores and ketonuria at 48 hours, reattendances within 7 days of discharge and comparison of symptoms at 7 days postdischarge.

results152/174 eligible women agreed to participate with 77/152 (51%) recruited to the RCT and 75/152 (49%) to the PPT.Patients were initially compared in four groups (randomised IP, randomised OP, non-randomised IP and non-randomised OP). Comprehensive cohort analysis of participants in the randomised group (RCT) and non-randomised group (PPT) did not demonstrate any differences in patient demographics or baseline clinical characteristics. Pooled analysis of IP versus OP groups showed no difference in reduction in PUQE score at 48 hours (p=0.86). There was no difference in change in eating score (p=0.69), drinking score (p=0.77), well-being rating (p=0.64) or reduction in ketonuria (p=0.47) at 48 hours, with no difference in duration of index treatment episode (p=0.83) or reattendances within 7 days (p=0.52).

conclusionsAmbulatory management is an effective direct alternative to IP management of severe NVP. The trial also demonstrated that many women requiring treatment for severe NVP have strong preferences regarding treatment setting, which may need to be considered by care providers, especially given the psychological impact of severe NVP. TRIAL REGISTRATION NUMBER: http://www.isrctn.com/ISRCTN24659467 (March 2014).

Indexed as

AdultAmbulatory CareFemaleHumansInpatientsLondonNauseaPatient PreferencePregnancyPregnancy ComplicationsSeverity of Illness IndexTreatment OutcomeVomitingambulatorynauseapregnancytreatment efficacyvomiting

Identifiers

PMID29222135
PMCPMC5736029
OpenAlexW2772695312

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

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.