Reference health
The role of C-reactive protein as a prognostic marker in COVID-19
25/25 checkable references clean · checked 2026-07-24
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.
3 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 25 checked references that resolve
resolves10.1016/S0140-6736(20)30211-7
Epidemiological and clinical characteristics of 99 cases of 2019 novel coronavirus pneumonia in Wuhan, China: a descriptive study
resolves10.1016/j.jcv.2020.104370
Prognostic value of interleukin-6, C-reactive protein, and procalcitonin in patients with COVID-19
resolves10.1016/j.ajem.2012.06.026
C-reactive protein as predictor of bacterial infection among patients with an influenza-like illness
resolves10.1183/13993003.03498-2020
Systematic evaluation and external validation of 22 prognostic models among hospitalised adults with COVID-19: an observational cohort study
resolves10.1186/s12941-020-00362-2
Plasma CRP level is positively associated with the severity of COVID-19
resolves10.1016/j.jaci.2020.05.008
Elevated levels of IL-6 and CRP predict the need for mechanical ventilation in COVID-19
resolves10.1073/pnas.2011086117
Overweight, obesity, and risk of hospitalization for COVID-19: A community-based cohort study of adults in the United Kingdom
resolves10.1371/journal.pmed.0040296
The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Statement: Guidelines for Reporting Observational Studies
resolves10.1016/S2468-2667(20)30146-8
The effect of frailty on survival in patients with COVID-19 (COPE): a multicentre, European, observational cohort study
resolves10.1136/bmjopen-2020-040569
Study protocol for the COPE study: COVID-19 in Older PEople: the influence of frailty and multimorbidity on survival. A multicentre, European observational study
resolves10.1002/jmv.26097
Elevated level of C‐reactive protein may be an early marker to predict risk for severity of COVID‐19
resolves10.1016/j.cmi.2020.07.016
Bacterial co-infection and secondary infection in patients with COVID-19: a living rapid review and meta-analysis
resolves10.1136/bmj.m1985
Features of 20 133 UK patients in hospital with covid-19 using the ISARIC WHO Clinical Characterisation Protocol: prospective observational cohort study
resolves10.1016/S0009-8981(02)00172-9
Development of ELISA on microplate for serum C-reactive protein and establishment of age-dependent normal reference range
resolves10.1038/s10038-020-0808-9
SARS-CoV-2 genomic variations associated with mortality rate of COVID-19
resolves10.1371/journal.pone.0238160
Diagnostic and prognostic value of hematological and immunological markers in COVID-19 infection: A meta-analysis of 6320 patients
resolves10.1093/ofid/ofv098
Acute Phase Reactants in Infections: Evidence-Based Review and a Guide for Clinicians
resolves10.1002/sim.1611
Confidence intervals for the effect of a prognostic factor after selection of an ‘optimal’ cutpoint
The 3 references without a DOI — listed, not checked
no DOI — not checkedEosinopenia and elevated C-reactive protein facilitate triage of COVID-19 patients in fever clinic: a retrospective case-control study
no DOI — not checkedClinical features and inpatient trajectories of older inpatients with COVID-19: a retrospective observational study
no DOI — not checkedValidation of predictors of disease severity and outcomes in COVID-19 patients: a descriptive and retrospective study
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