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This aids in the development of reliable screening tools. Nausea and vomiting (OR 2.84, 95% CI 1.61-5.00) had been reported as an uncommon symptom previously however, our data suggest a significant predictive value.Ĭonclusions: Self-reported symptom tracking helps to identify novel symptoms of COVID-19 and to estimate the predictive value of certain symptoms. The odds ratio for loss of smell was 3.13 (95% CI 1.76-5.58). We identified chills, fever, loss of smell, nausea and vomiting, and shortness of breath as the top five strongest predictors for a COVID-19 infection. The most significant risk factors were diabetes (odds ratio 8.95, 95% CI 3.30-22.37) and chronic heart disease (OR 2.85, 95% CI 1.43-5.69). Participants with a positive test result had, on average, 5.63 symptoms (SD 2.82). The mean number of reported symptoms among untested participants was 0.81 (SD 1.85). Of these, 291 (2.46%) participants stated that they had undergone an RT-PCR (reverse transcription-polymerase chain reaction) test for SARS-CoV-2 65 (0.55%) reported a positive test result and 226 (1.91%) a negative one. Results: In total, 11,829 (52.98%) participants completed the symptom questionnaire at least once. Participation was open to all adults (≥18 years). Participants who sought health care services were asked additional questions regarding diagnostics and treatment. The participants were reminded daily to report whether they were experiencing any symptoms and if they had been tested for SARS-CoV-2 infection. An initial questionnaire asked for demographic information (age, gender, postal code) and past medical history comprising relevant chronic diseases. Between April 8 and May 15, 2020, a total of 22,327 individuals installed this app on their mobile device. Methods: The COVID-19 Symptom Tracker is an app-based daily self-reporting tool. Objective: To determine the distribution pattern of COVID-19 symptoms as well as possible unreported symptoms, we created an app-based self-reporting tool. Knowledge of possible symptoms and their distribution allows for the early identification of infected patients.
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Journal of Participatory Medicine 69 articles.JMIR Rehabilitation and Assistive Technologies 168 articles.
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JMIR Pediatrics and Parenting 224 articles.Interactive Journal of Medical Research 244 articles.JMIR Public Health and Surveillance 940 articles.Journal of Medical Internet Research 6775 articles.I feel proud," said Lee, the Corona Map developer before adding that he hopes the government builds on his app to develop one of its own. "When I think that this app can prevent the spread of coronavirus patients by advising people not to go to certain places.
#Corona tracker app free#
However, while these apps are free to download, developers of Corona 100m and Corona Map said they're putting in money from their own pockets to run the apps but are asking for donations from users. Although health officials release locations that show where coronavirus patients have been, the official information isn't very visual so Lee decided to put that information on a map. Lee Jun-young, the developer of the app, said he made the app because he found the government data difficult to understand. As the name suggests, the app maps the exact locations where each confirmed patient has visited using different colours. Corona Map was the second most downloaded mobile app on Google's app marketplace this week.