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Snotwatch COVID-toes: An ecological study of chilblains and COVID-19 diagnoses in Victoria, Australia.
Sawires, Rana; Pearce, Christopher; Fahey, Michael; Clothier, Hazel; Gardner, Karina; Buttery, Jim.
  • Sawires R; Department of Paediatrics, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria, Australia.
  • Pearce C; Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia.
  • Fahey M; Outcome Health, Blackburn, Victoria, Australia.
  • Clothier H; Department of Neurology, Monash Children's Hospital, Clayton, Victoria, Australia.
  • Gardner K; Neurogenetics Department, Monash Paediatrics, Monash University, Clayton, Victoria, Australia.
  • Buttery J; Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia.
PLOS Glob Public Health ; 2(10): e0000488, 2022.
Article in English | MEDLINE | ID: covidwho-2162511
ABSTRACT
The COVID-19 pandemic has caused widespread illness with varying clinical manifestations. One less-commonly-reported presentation of COVID-19 infection is chilblain-like lesions. We conducted an ecological analysis of chilblain presentations in comparison with confirmed and suspected COVID-19 infections in a primary care setting to establish that a relationship exists between the two. Our study collated data from three Primary Health Networks across Victoria, Australia, from 2017-2021, to understand patterns of chilblain presentations prior to and throughout the pandemic. Using a zero-inflated negative binomial regression analysis, we estimated the relationship between local minimum temperature, COVID-19 infections and the frequency of chilblain presentations. We found a 5.72 risk ratio of chilblain incidence in relation to COVID-19 infections and a 3.23 risk ratio associated with suspected COVID-19 infections. COVID-19 infections were also more strongly associated with chilblain presentations in 0-16-year-olds throughout the pandemic in Victoria. Our study statistically suggests that chilblains are significantly associated with COVID-19 infections in a primary care setting. This has major implications for clinicians aiming to diagnose COVID-19 infections or determine the cause of a presentation of chilblains. Additionally, we demonstrate the utility of large-scale primary care data in identifying an uncommon manifestation of COVID-19 infections, which will be significantly beneficial to treating physicians.

Full text: Available Collection: International databases Database: MEDLINE Type of study: Observational study / Prognostic study Language: English Journal: PLOS Glob Public Health Year: 2022 Document Type: Article Affiliation country: Journal.pgph.0000488

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Full text: Available Collection: International databases Database: MEDLINE Type of study: Observational study / Prognostic study Language: English Journal: PLOS Glob Public Health Year: 2022 Document Type: Article Affiliation country: Journal.pgph.0000488