id author title date pages extension mime words sentences flesch summary cache txt cord-323074-u3bs5sj0 Garcia, L. P. ESTIMATING UNDERDIAGNOSIS OF COVID-19 WITH NOWCASTING AND MACHINE LEARNING: EXPERIENCE FROM BRAZIL 2020-07-02 .txt text/plain 3795 280 55 This study aimed to analyze the underdiagnosis of COVID-19, through nowcasting with machine learning, in a South of Brazil capital. To analyze the underdiagnosis, we compared the difference between the data without nowcasting and the median of the nowcasted projections for the entire period and for the six days from the date of onset of symptoms to diagnosis at the moment of data extraction. To help overcome this challenge, the present study aimed to analyze the underdiagnosis of COVID-19 cases, through nowcasting with machine learning, in a South of Brazil capital city. The following variables were extracted from anonymized database of suspected and confirmed cases: i) diagnostic (confirmed, discarded or missing), ii) sex, iii) age (in years), The number of infected people (with a positive diagnosis and less than 14 days of symptom onset) and the rate of infected people per 100,000 inhabitants were calculated for the health regions where each notified person resides. ./cache/cord-323074-u3bs5sj0.txt ./txt/cord-323074-u3bs5sj0.txt