SynthesisNutrients2021
Weight Gain Associated with COVID-19 Lockdown in Children and Adolescents: A Systematic Review and Meta-Analysis.
Synthesis in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 122 papers, 4 of them syntheses 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
122 citing papers in PubMed, 4 syntheses or guidelines pooled it, 241 citations in OpenAlex.
- Evidence linking COVID-19 and the health/well-being of children and adolescents: an umbrella review.BMC medicine · 2024Pooled it
- Handgrip strength thresholds associated with metabolic syndrome risk in children and adolescents: a systematic review and meta-analysis.Epidemiology and health · 2024Pooled it
- Obesity and COVID-19 in Children and Adolescents: Reciprocal Detrimental Influence-Systematic Literature Review and Meta-Analysis.International journal of environmental research and public health · 2022Pooled it
- Guidelines for treating child and adolescent obesity: A systematic review.Frontiers in nutrition · 2022Pooled it
- Factors impacting physical activity among post-treatment pediatric cancer survivors with overweight and obesity.European journal of pediatrics · 2024Trial
- Wellness Achieved Through Changing Habits: A Randomized Controlled Trial of an Acceptance-Based Intervention for Adolescent Girls With Overweight or Obesity.Childhood obesity (Print) · 2023Trial
- An addiction-based digital weight loss intervention: A multi-centre randomized controlled trial.Pediatric obesity · 2023Trial
- Intervention effects and long-term changes in physical activity and cardiometabolic outcomes among children at risk of noncommunicable diseases in South Africa: a cluster-randomized controlled trial and follow-up analysis.Frontiers in public health · 2023Trial
- Weight Perception and Lifestyle Awareness in Children and Adolescents: Insights from a Cross-Sectional Study.Nutrients · 2026Article
- The effect of Covid 19 pandemic on childhood obesity in Turkey.BMC pediatrics · 2026Article
- Article
- Phase-specific changes in anthropometric and physical fitness outcomes among Chinese upper-secondary students before, during, and after the COVID-19 pandemic: the moderating role of educational track.Frontiers in public health · 2026Article
- Longitudinal Changes in the Adjusted Body Mass Index (BMI) Percentile Among Children in Riyadh, Saudi Arabia, During and After the COVID-19 Lockdown.Healthcare (Basel, Switzerland) · 2025Article
- Trends in physical fitness among children and adolescents in Europe: A systematic review and meta-analyses during and after the COVID-19 pandemic.Journal of sport and health science · 2025Review
- Review
- Impact of COVID-19 Diagnosis on Weight Trajectories of Children in the US National COVID Cohort Collaborative.Childhood obesity (Print) · 2025Article
- Identifying research priorities for paediatric nutrition for Australia: A Delphi consensus approach.Nutrition & dietetics : the journal of the Dietitians Association of Australia · 2025Article
- Changes in pediatric obesity rates before and during the COVID pandemic in a Federally Qualified Health Center.Preventive medicine reports · 2025Article
- From Childhood Obesity to Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) and Hyperlipidemia Through Oxidative Stress During Childhood.Metabolites · 2025Review
- The impact of COVID-19 pandemic on sarcopenic obesity among children between 6 and 10 years of age: a prospective study.European journal of pediatrics · 2025Article
62 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLockdown is an effective nonpharmaceutical intervention to reduce coronavirus disease 2019 (COVID-19) transmission, but it restricts daily activity. We aimed to investigate the impact of lockdown on pediatric body weight and body mass index (BMI).
methodsThe systematic review and meta-analysis were conducted following the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) statement. Four online databases (EMBASE, Medline, the Cochrane Library and CINAHL) were searched.
resultsThe pooled results showed that lockdown was associated with significant body weight gain (MD 2.67, 95% CI 2.12-3.23;
conclusionsOur meta-analysis showed significant increases in body weight and BMI during lockdown among school-age children and adolescents. The prevalence of obesity and overweight also increased. The COVID-19 pandemic worsened the burden of childhood obesity.
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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.