Evidence map›Paper›PMID 34170486›Full record

Observational studyInfection2021

COVID-19 symptoms at hospital admission vary with age and sex: results from the ISARIC prospective multinational observational study.

ISARIC Clinical Characterisation Group

Abstract readCase ReportsObservational Study
In one paragraph

Observational study in Infection, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

51 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

1 author.

ISARIC Clinical Characterisation Group

Funding

Michigan Institute for Clinical and Health Research (MICHR)UL1TR002240 · NCATS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI LUMENG, JULIE C, MASHOUR, GEORGE ALEXANDER · 2017 to 2022
$54.9M
Physician Postdoctoral Research Training in Perioperative Medicine (PPRTPM)T32GM112596 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI Roderic G Eckenhoff, Max Kelz · 2015 to 2026
$3.4M
Medical Research Council MC_PC_15001Medical Research Council MC_PC_19012Medical Research Council MC_PC_19025Medical Research Council MC_PC_19026Medical Research Council MC_PC_19059Medical Research Council MC_UU_12014/8Medical Research Council MR/R015600/1Medical Research Council MR/S032304/1NCATS NIH HHS UL1 TR002240NHLBI NIH HHS L30 HL159698NIGMS NIH HHS T32 GM112596NIH HHS UL1TR002240Wellcome Trust 109965/Z/15/ZWellcome Trust 200927Wellcome Trust 204904/Z/16/Z
6 · The paper itself

Abstract

backgroundThe ISARIC prospective multinational observational study is the largest cohort of hospitalized patients with COVID-19. We present relationships of age, sex, and nationality to presenting symptoms.

methodsInternational, prospective observational study of 60 109 hospitalized symptomatic patients with laboratory-confirmed COVID-19 recruited from 43 countries between 30 January and 3 August 2020. Logistic regression was performed to evaluate relationships of age and sex to published COVID-19 case definitions and the most commonly reported symptoms.

results'Typical' symptoms of fever (69%), cough (68%) and shortness of breath (66%) were the most commonly reported. 92% of patients experienced at least one of these. Prevalence of typical symptoms was greatest in 30- to 60-year-olds (respectively 80, 79, 69%; at least one 95%). They were reported less frequently in children (≤ 18 years: 69, 48, 23; 85%), older adults (≥ 70 years: 61, 62, 65; 90%), and women (66, 66, 64; 90%; vs. men 71, 70, 67; 93%, each P < 0.001). The most common atypical presentations under 60 years of age were nausea and vomiting and abdominal pain, and over 60 years was confusion. Regression models showed significant differences in symptoms with sex, age and country.

interpretationThis international collaboration has allowed us to report reliable symptom data from the largest cohort of patients admitted to hospital with COVID-19. Adults over 60 and children admitted to hospital with COVID-19 are less likely to present with typical symptoms. Nausea and vomiting are common atypical presentations under 30 years. Confusion is a frequent atypical presentation of COVID-19 in adults over 60 years. Women are less likely to experience typical symptoms than men.

Indexed as

COVID-19AgedChildFemaleHospitalizationHospitalsHumansMaleMiddle AgedProspective StudiesSARS-CoV-2Case definitionCOVID-19DiagnosisSARS-CoV-2Symptoms

Identifiers

PMID34170486
PMCPMC8231091

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Registered trials

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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.