ArticleBMJ open2022
Side effects of COVID-19 vaccines: a systematic review and meta-analysis protocol of randomised trials.
Article in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
22 citing papers in PubMed, 1 synthesis or guideline pooled it.
- A Systematic Review of Ocular Complications Following Different Types of Covid-19 Vaccines.Journal of immunology research · 2025Pooled it
- The attitude of the unvaccinated children's parents toward pediatric COVID-19 vaccination in Tabriz, Iran.BMC pediatrics · 2025Article
- Mental symptoms in post-COVID syndrome and post-COVID-19 vaccination syndrome: results of a representative population survey.Frontiers in public health · 2025Article
- Vaccination Coverage Covid-19 and Self-Reported Adverse Post-Vaccination Events in Mbuji-Mayi, DR Congo.Infection and drug resistance · 2025Article
- Safety and efficiency of COVID-19 vaccine in North Africa.Human vaccines & immunotherapeutics · 2024Article
- Article
- Incidence of narcolepsy symptoms after taking COVID-19 vaccines: a Jordanian cross-sectional study.Clinical and experimental vaccine research · 2024Article
- Clinical Manifestations and Outcomes of Older Patients with COVID-19: A Comprehensive Review.Tuberculosis and respiratory diseases · 2024Article
- Global landscape of COVID-19 research: a visualization analysis of randomized clinical trials.Clinical and experimental medicine · 2024Article
- Evaluation of post-COVID mortality risk in cases classified as severe acute respiratory syndrome in Brazil: a longitudinal study for medium and long term.Frontiers in medicine · 2024Article
- Assessment of implicit COVID-19 attitudes using affective priming for pro-vaccine and vaccine-hesitant individuals.Journal of health psychology · 2023Article
- Studies on the Nonalkaloidal Secondary Metabolites ofACS omega · 2023Article
- Exploring the volatile metabolites of threeSaudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2023Article
- Impact of COVID-19 Preventative Measures on Otolaryngology in Taiwan: A Nationwide Study.International journal of environmental research and public health · 2023Article
- Uptake, Safety and Attitudes Towards COVID-19 Vaccination: A Cross-Sectional Study on First and Second Doses Among the General Public.Risk management and healthcare policy · 2023Article
- Nanograms of SARS-CoV-2 spike protein delivered by exosomes induce potent neutralization of both delta and omicron variants.PloS one · 2023Article
- Pattern of self-reported adverse events related to COVID-19 vaccines in Saudi Arabia: A nationwide study.Frontiers in public health · 2023Article
- Efficacy and safety profile of two-dose SARS-CoV-2 vaccines in cancer patients: An observational study in China.World journal of clinical cases · 2022Article
- Review
- Surveillance of Post-Vaccination Side Effects of COVID-19 Vaccines among Saudi Population: A Real-World Estimation of Safety Profile.Vaccines · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionSARS-CoV-2 is responsible for a large number of global COVID-19 cases. Strategies such as social isolation, personal hygiene and frequent hand washing have been implemented; however, a protective vaccine is required to achieve sufficient herd immunity to SARS-CoV-2 infection to ultimately control the COVID-19 pandemic. To meet the urgent need for a vaccine, a reduction in the development schedule has been proposed from 10-15 years to 1-2 years. For this reason, this systematic review and meta-analysis protocol aims to compare the side effects, safety and toxicity of COVID-19 vaccines available globally, including their combinations. METHODS AND ANALYSIS: We will select randomised controlled trial-type studies that evaluate the side effects of the COVID-19 vaccine. PubMed, Web of Science, Embase, CINAHL, PsycINFO, LILACS, SCOPUS, ClinicalTrials.gov, International Clinical Trials Registry Platform (ICTRP), medRxiv.org, biorxiv.org, preprints.org and the Cochrane Library will be searched for eligible studies until December 2021. Three reviewers will independently screen and select studies, assess methodological quality and extract data. A meta-analysis will be performed, if possible, and the Grading of Recommendations, Assessment, Development and Evaluations summary of findings will be presented. ETHICS AND DISSEMINATION: This study will review published data, and thus it is unnecessary to obtain ethical approval. The findings of this systematic review will be published in a peer-reviewed journal. PROSPERO REGISTRATION NUMBER: CRD42021231101.
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Registered trials
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.