Major mistakes or errors in the use of trial sequential analysis in systematic reviews or meta-analyses - the METSA systematic review.


Journal

BMC medical research methodology
ISSN: 1471-2288
Titre abrégé: BMC Med Res Methodol
Pays: England
ID NLM: 100968545

Informations de publication

Date de publication:
09 Sep 2024
Historique:
received: 20 09 2023
accepted: 21 08 2024
medline: 10 9 2024
pubmed: 10 9 2024
entrez: 9 9 2024
Statut: epublish

Résumé

Systematic reviews and data synthesis of randomised clinical trials play a crucial role in clinical practice, research, and health policy. Trial sequential analysis can be used in systematic reviews to control type I and type II errors, but methodological errors including lack of protocols and transparency are cause for concern. We assessed the reporting of trial sequential analysis. We searched Medline and the Cochrane Database of Systematic Reviews from 1 January 2018 to 31 December 2021 for systematic reviews and meta-analysis reports that include a trial sequential analysis. Only studies with at least two randomised clinical trials analysed in a forest plot and a trial sequential analysis were included. Two independent investigators assessed the studies. We evaluated protocolisation, reporting, and interpretation of the analyses, including their effect on any GRADE evaluation of imprecision. We included 270 systematic reviews and 274 meta-analysis reports and extracted data from 624 trial sequential analyses. Only 134/270 (50%) systematic reviews planned the trial sequential analysis in the protocol. For analyses on dichotomous outcomes, the proportion of events in the control group was missing in 181/439 (41%), relative risk reduction in 105/439 (24%), alpha in 30/439 (7%), beta in 128/439 (29%), and heterogeneity in 232/439 (53%). For analyses on continuous outcomes, the minimally relevant difference was missing in 125/185 (68%), variance (or standard deviation) in 144/185 (78%), alpha in 23/185 (12%), beta in 63/185 (34%), and heterogeneity in 105/185 (57%). Graphical illustration of the trial sequential analysis was present in 93% of the analyses, however, the Z-curve was wrongly displayed in 135/624 (22%) and 227/624 (36%) did not include futility boundaries. The overall transparency of all 624 analyses was very poor in 236 (38%) and poor in 173 (28%). The majority of trial sequential analyses are not transparent when preparing or presenting the required parameters, partly due to missing or poorly conducted protocols. This hampers interpretation, reproducibility, and validity. PROSPERO CRD42021273811.

Sections du résumé

BACKGROUND BACKGROUND
Systematic reviews and data synthesis of randomised clinical trials play a crucial role in clinical practice, research, and health policy. Trial sequential analysis can be used in systematic reviews to control type I and type II errors, but methodological errors including lack of protocols and transparency are cause for concern. We assessed the reporting of trial sequential analysis.
METHODS METHODS
We searched Medline and the Cochrane Database of Systematic Reviews from 1 January 2018 to 31 December 2021 for systematic reviews and meta-analysis reports that include a trial sequential analysis. Only studies with at least two randomised clinical trials analysed in a forest plot and a trial sequential analysis were included. Two independent investigators assessed the studies. We evaluated protocolisation, reporting, and interpretation of the analyses, including their effect on any GRADE evaluation of imprecision.
RESULTS RESULTS
We included 270 systematic reviews and 274 meta-analysis reports and extracted data from 624 trial sequential analyses. Only 134/270 (50%) systematic reviews planned the trial sequential analysis in the protocol. For analyses on dichotomous outcomes, the proportion of events in the control group was missing in 181/439 (41%), relative risk reduction in 105/439 (24%), alpha in 30/439 (7%), beta in 128/439 (29%), and heterogeneity in 232/439 (53%). For analyses on continuous outcomes, the minimally relevant difference was missing in 125/185 (68%), variance (or standard deviation) in 144/185 (78%), alpha in 23/185 (12%), beta in 63/185 (34%), and heterogeneity in 105/185 (57%). Graphical illustration of the trial sequential analysis was present in 93% of the analyses, however, the Z-curve was wrongly displayed in 135/624 (22%) and 227/624 (36%) did not include futility boundaries. The overall transparency of all 624 analyses was very poor in 236 (38%) and poor in 173 (28%).
CONCLUSIONS CONCLUSIONS
The majority of trial sequential analyses are not transparent when preparing or presenting the required parameters, partly due to missing or poorly conducted protocols. This hampers interpretation, reproducibility, and validity.
STUDY REGISTRATION BACKGROUND
PROSPERO CRD42021273811.

Identifiants

pubmed: 39251912
doi: 10.1186/s12874-024-02318-y
pii: 10.1186/s12874-024-02318-y
doi:

Types de publication

Journal Article Systematic Review

Langues

eng

Sous-ensembles de citation

IM

Pagination

196

Informations de copyright

© 2024. The Author(s).

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Auteurs

Christian Gunge Riberholt (CG)

Copenhagen Trial Unit, Centre for Clinical Intervention Research, The Capital Region, Copenhagen University Hospital - Rigshospitalet, Blegdamsvej 9, Copenhagen, 2100, Denmark. christian.riberholt@regionh.dk.
Department of Brain and Spinal Cord Injury, Neuroscience Centre, Copenhagen University Hospital - Rigshospitalet, Valdemar Hansens Vej 23, Glostrup, 2600, Denmark. christian.riberholt@regionh.dk.
Department of Neuroanaesthesiology, Neuroscience Centre, Copenhagen University Hospital - Rigshospitalet, Blegdamsvej 9, Copenhagen, 2100, Denmark. christian.riberholt@regionh.dk.

Markus Harboe Olsen (MH)

Copenhagen Trial Unit, Centre for Clinical Intervention Research, The Capital Region, Copenhagen University Hospital - Rigshospitalet, Blegdamsvej 9, Copenhagen, 2100, Denmark.
Department of Neuroanaesthesiology, Neuroscience Centre, Copenhagen University Hospital - Rigshospitalet, Blegdamsvej 9, Copenhagen, 2100, Denmark.

Joachim Birch Milan (JB)

Copenhagen Trial Unit, Centre for Clinical Intervention Research, The Capital Region, Copenhagen University Hospital - Rigshospitalet, Blegdamsvej 9, Copenhagen, 2100, Denmark.

Sigurlaug Hanna Hafliðadóttir (SH)

Bjarg Rehabilitation Center, Bugðusíðu 1, 603, Akureyri, Iceland.

Jeppe Houmann Svanholm (JH)

Department of Gastrointestinal Surgery, Aalborg University Hospital South, Hobrovej 18-22, Aalborg, 9000, Denmark.

Elisabeth Buck Pedersen (EB)

Department of Brain and Spinal Cord Injury, Neuroscience Centre, Copenhagen University Hospital - Rigshospitalet, Valdemar Hansens Vej 23, Glostrup, 2600, Denmark.

Charles Chin Han Lew (CCH)

Department of Dietetics and Nutrition, Ng Teng Fong General Hospital, Singapore, Singapore.
Faculty of Health and Social Sciences, Singapore Institute of Technology, Singapore, Singapore.

Mark Aninakwah Asante (MA)

Copenhagen Trial Unit, Centre for Clinical Intervention Research, The Capital Region, Copenhagen University Hospital - Rigshospitalet, Blegdamsvej 9, Copenhagen, 2100, Denmark.

Johanne Pereira Ribeiro (J)

Center for Evidence-Based Psychiatry, Psychiatric Research Unit, Psychiatry Region Zealand, Faelledvej 6, Slagelse, 4200, Denmark.
Department of Psychology, Faculty of Health Sciences, University of Southern Denmark, Campusvej 55, 5230, Odense, Denmark.

Vibeke Wagner (V)

Department of Brain and Spinal Cord Injury, Neuroscience Centre, Copenhagen University Hospital - Rigshospitalet, Valdemar Hansens Vej 23, Glostrup, 2600, Denmark.
Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.

Buddheera W M B Kumburegama (BWMB)

Copenhagen Trial Unit, Centre for Clinical Intervention Research, The Capital Region, Copenhagen University Hospital - Rigshospitalet, Blegdamsvej 9, Copenhagen, 2100, Denmark.

Zheng-Yii Lee (ZY)

Department of Anaesthesiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Department of Cardiac Anesthesiology & Intensive Care Medicine, Charité, Berlin, Germany.

Julie Perrine Schaug (JP)

Center for Evidence-Based Psychiatry, Psychiatric Research Unit, Psychiatry Region Zealand, Faelledvej 6, Slagelse, 4200, Denmark.

Christina Madsen (C)

Psychiatric Research Unit, Psychiatry Region Zealand, Region Zealand, Fælledvej 6, Slagelse, 4200, Denmark.

Christian Gluud (C)

Copenhagen Trial Unit, Centre for Clinical Intervention Research, The Capital Region, Copenhagen University Hospital - Rigshospitalet, Blegdamsvej 9, Copenhagen, 2100, Denmark.
Department of Regional Health Research, The Faculty of Health Sciences, University of Southern Denmark, Odense, Denmark.

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