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80 percent of COVID-19 survivors have long-haul symptoms – meta-analysis Jan 30, 2021

More than 50 Long-term effects of COVID-19: a systematic review and meta-analysis

Prerint doi: https://doi.org/10.1101/2021.01.27.21250617
Sandra Lopez-Leon, Talia Wegman-Ostrosky, Carol Perelman, Rosalinda Sepulveda, Paulina A Rebolledo, Angelica Cuapio, Sonia Villapol
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COVID-19, caused by SARS-CoV-2, can involve sequelae and other medical complications that last weeks to months after initial recovery, which has come to be called Long-COVID or COVID long-haulers. This systematic review and meta-analysis aims to identify studies assessing long-term effects of COVID-19 and estimates the prevalence of each symptom, sign, or laboratory parameter of patients at a post-COVID-19 stage. LitCOVID (PubMed and Medline) and Embase were searched by two independent researchers. All articles with original data for detecting long-term COVID-19 published before 1st of January 2021 and with a minimum of 100 patients were included. For effects reported in two or more studies, meta-analyses using a random-effects model were performed using the MetaXL software to estimate the pooled prevalence with 95% CI. Heterogeneity was assessed using I2 statistics. The Preferred Reporting Items for Systematic Reviewers and Meta-analysis (PRISMA) reporting guideline was followed. A total of 18,251 publications were identified, of which 15 met the inclusion criteria.
The prevalence of 55 long-term effects was estimated, 21 meta-analyses were performed, and 47,910 patients were included. The follow-up time ranged from 15 to 110 days post-viral infection. The age of the study participants ranged between 17 and 87 years.
It was estimated that 80% (95% CI 65-92) of the patients that were infected with SARS-CoV-2 developed one or more long-term symptoms.
The five most common symptoms were

  • fatigue (58%),
  • headache (44%),
  • attention disorder (27%),
  • hair loss (25%), and
  • dyspnea (24%). [[[difficult or labored breathing]

All meta-analyses showed medium (n=2) to high heterogeneity (n=13). In order to have a better understanding, future studies need to stratify by

  • sex,
  • age,
  • previous comorbidities,
  • severity of COVID-19 (ranging from asymptomatic to severe), and
  • duration of each symptom.

From the clinical perspective, multi-disciplinary teams are crucial to developing preventive measures, rehabilitation techniques, and clinical management strategies with whole-patient perspectives designed to address long COVID-19 care.

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The patient follow-up time ranged from 14 days to 110 days.
Six out of the 11 studies included only patients hospitalized for COVID-19.
The rest of the studies mixed mild, moderate, and severe COVID-19 patients.


'Wonder if we can virtually eliminate Long Haul problems if restore immune system with Vitamin D, etc.

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As of June 21, the page had:  34 trials5 trial results,  17 meta-analyses and reviews,   59 observations,   34 recommendations,   53 associations,  88 speculations,  45 videos   see related:   Governments,   HealthProblems,   Hospitals,  Dark Skins,   26 risk factors are ALL associated with low Vit D,   Recent Virus pages   Fight COVID-19 with 50K Vit D weekly   Vaccine problems  


Created by admin. Last Modification: Sunday June 20, 2021 18:13:14 GMT-0000 by admin. (Version 27)

Attached files

ID Name Comment Uploaded Size Downloads
15425 JAMA long haul HCW.pdf PDF 2021 admin 13 Apr, 2021 00:58 171.49 Kb 23
15400 6 month neuro.pdf PDF 2021 admin 09 Apr, 2021 14:32 1.14 Mb 31
14952 Survey of Long-term COVID.pdf admin 31 Jan, 2021 12:45 882.04 Kb 61
14948 Long Haul.jpg admin 30 Jan, 2021 23:25 391.85 Kb 442
14947 More than 50 Long-term effects meta-analysis_compressed.pdf PDF 2021 admin 30 Jan, 2021 23:24 807.04 Kb 5341
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