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    COVID-19 Resource Center

    Our Philosophy on COVID-19 Evidence, Scores, and Calculators - July 2020

    We do our best to include only high-quality, evidence-based scores and calculators on MDCalc, and, with rare exception, only include calculators with at least a validation in a separate or prospective population when related to a predictive score. (We obviously always prefer an external validation of a score in another patient population.) We also do our own internal review of the published data to make sure that the calculator is clinically relevant, helpful, and based on sound evidence.

    COVID-19 created a unique problem for everyone in medicine, including medical research - the need to quickly disseminate information accurately so we could work together across the world to provide effective care, learn from each other, and save lives. In the very first weeks of the crisis as COVID-19 spread outside of China, we launched our COVID Resource Center to provide clinicians with the latest calculators and resources that could help with COVID virus problems: like hypoxia, critical care, ARDS, ECMO, hypercoaguable states, and algorithmic care from centers deeply impacted, like Brescia, Italy. We labeled all calculators approved and reviewed for COVID, to do our best to warn clinicians when limited data or information was available, but attempted to walk the fine line of informing users while still cautioning them about information that is cutting edge - recently published and peer reviewed, but not significantly validated to the time sensitive nature of emerging understanding about COVID-19.

    We’ve received many welcome requests from users to add a particular score to MDCalc related to COVID-19. And now that we are 6 months into this worldwide pandemic and crisis, we are returning toward our highly selective bar that evidence and scores must reach in order to be published on MDCalc (we realize things are still quite dynamic and so will consider exceptions on a case-by-case basis). We have also updated our COVID Resource Center to fit our new understanding of the virus. We have much more data now at our disposal; COVID-19 is no longer an “emerging” threat to the world but has now "emerged." While it will continue to be "new" to many individual communities, the world's medical system already knows dramatically more about the virus than just months ago.

    To that end, we’d like to provide a list of calculators and scores that we have reviewed and provide at least basic information about why scores were reviewed but not added to MDCalc. Please contact us. if you feel our analysis is incorrect or out of date on a particular score (for example, if a recent external validation has been published) so we can re-review it.

    - The MDCalc Team

    COVID-19 Calculators Under Consideration
    Last updated July 22, 2020
    CalcFunctionMDCalc Review
    Call ScorePredicts prognosis of COVID-19 inpatients decompensationOnly 200 patients included (40 in progression group); no validation besides internal bootstrapping
    Chest CT Severity ScoreEvaluates utility of chest CT in diagnosing "severe" COVID-19Only 102 patients included (18 in "severe" group); "severe" definition very broad; no validation
    Milano Policlinico ONCOVID ScoreSuggests which cancer patients that may be higher-risk for poor outcome if infected with COVID-19Uses only expert opinion without further evidence included
    COVID Scoring System (CSS)Predicts in-hospital mortality and complications for COVID-19 patientsNot yet peer reviewed
    Fear of COVID-19 Scale (FCV-19S)7-item scale assessing COVID-19 fearInternal-only validation; questionable clinical utility (may have research utility)
    Host Risk ScoreSuggests risk factors that may pre-dispose to severe COVID-19Not sufficiently discriminatory; only 49 severe patients; validation in 66 patients (too few)
    Lung Ultrasound ScoreScoring tool for US-assessment of COVID-19 pulmonary severityNot truly studied in a patient population
    Penn Medicine COVID-19 Hospital Impact Model for EpidemicsEstimates how many patients will need hospitalization, ICU beds, and mechanical ventilation for a hospital populationNot a clinical calculator, but possibly an effective visualization and prognostication tool for hospital administration, public health, and epidemiologists
    Stanford University Hospital Resource CalculatorEstimates how many patients will need hospitalization, ICU beds, and mechanical ventilation for a hospital populationNot a clinical calculator, but possibly an effective visualization and prognostication tool for hospital administration, public health, and epidemiologists

    Know of a new COVID score that's not on this list? Send it over to us at team@mdcalc.com