A new preprint awaiting feedback from the @ohdsi @IMI_EHDEN #COVID19 collaboration: Phenotype and 30-day outcomes in an international cohort including >3.32 million people tested, and >219,000 tested+ for SARS-CoV-2 in South Korea, Spain and the US https://www.medrxiv.org/content/10.1101/2020.10.25.20218875v1">https://www.medrxiv.org/content/1...

Key Messages: 1/3
Most of the population infected (ie tested+) in the first wave were middle-aged women. Positive/tested ratio varied greatly geographically (2.2:100 to 31.2:100) and over time (from 50:100 in February-April to 6.8:100 in May-June)

2/3
Fever, cough and dyspnoea were the most common symptoms at presentation. A variable 4%-38% required admission and 1-10.5% died within a month from their first positive test

3/3 (last but not least)
Outcomes varied and were much worse in places and at times with high +/tested (high positivity)

Acknowledgements here:
"We& #39;d like to acknowledge the patients who suffered or died from this devastating disease, and their families and carers. We& #39;d also like to thank the healthcare professionals involved in the management of COVID-19, from primary care to intensive care