Sökning: onr:"swepub:oai:prod.swepub.kib.ki.se:232743605" > The best COVID-19 p...
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000 | 06911naa a2201789 4500 | |
001 | oai:prod.swepub.kib.ki.se:232743605 | |
003 | SwePub | |
008 | 240701s2020 | |||||||||||000 ||eng| | |
024 | 7 | a http://kipublications.ki.se/Default.aspx?queryparsed=id:2327436052 URI |
024 | 7 | a https://doi.org/10.1101/2020.07.22.201572632 DOI |
040 | a (SwePub)ki | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a vet2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Gerkin, RC4 aut |
245 | 1 0 | a The best COVID-19 predictor is recent smell loss: a cross-sectional study |
264 | 1 | b Cold Spring Harbor Laboratory,c 2020 |
520 | a BackgroundCOVID-19 has heterogeneous manifestations, though one of the most common symptoms is a sudden loss of smell (anosmia or hyposmia). We investigated whether olfactory loss is a reliable predictor of COVID-19.MethodsThis preregistered, cross-sectional study used a crowdsourced questionnaire in 23 languages to assess symptoms in individuals self-reporting recent respiratory illness. We quantified changes in chemosensory abilities during the course of the respiratory illness using 0-100 visual analog scales (VAS) for participants reporting a positive (C19+; n=4148) or negative (C19-; n=546) COVID-19 laboratory test outcome. Logistic regression models identified singular and cumulative predictors of COVID-19 status and post-COVID-19 olfactory recovery.ResultsBoth C19+ and C19-groups exhibited smell loss, but it was significantly larger in C19+ participants (mean±SD, C19+: -82.5±27.2 points; C19-: -59.8±37.7). Smell loss during illness was the best predictor of COVID-19 in both single and cumulative feature models (ROC AUC=0.72), with additional features providing negligible model improvement. VAS ratings of smell loss were more predictive than binary chemosensory yes/no-questions or other cardinal symptoms, such as fever or cough. Olfactory recovery within 40 days was reported for ∼50% of participants and was best predicted by time since illness onset.ConclusionsAs smell loss is the best predictor of COVID-19, we developed the ODoR-19 tool, a 0-10 scale to screen for recent olfactory loss. Numeric ratings ≤2 indicate high odds of symptomatic COVID-19 (4<OR<10), which can be deployed when viral lab tests are impractical or unavailable. | |
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710 | 2 | a Karolinska Institutet4 org |
773 | 0 | t medRxiv : the preprint server for health sciencesd : Cold Spring Harbor Laboratory |
856 | 4 | u https://www.medrxiv.org/content/medrxiv/early/2020/07/28/2020.07.22.20157263.full.pdf |
856 | 4 8 | u http://kipublications.ki.se/Default.aspx?queryparsed=id:232743605 |
856 | 4 8 | u https://doi.org/10.1101/2020.07.22.20157263 |
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