Fig. 6: Study participation. | Nature Communications

Fig. 6: Study participation.

From: App-based COVID-19 syndromic surveillance and prediction of hospital admissions in COVID Symptom Study Sweden

Fig. 6: Study participation.

Number of daily reports from study participants stratified by sex and age (<50 and ≥50 years), and cumulative number of study participants (n total = 143,531, purple line), in COVID Symptom Study Sweden during the study period April 29, 2020 to February 10, 2021. *Temporary halt in data collection due to technical issue in the COVID Symptom Study app.

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