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. 2023 Jul 19;620(7972):128–136. doi: 10.1038/s41586-023-06331-x

Extended Data Table 1.

Study population demographics

graphic file with name 41586_2023_6331_Tab1_ESM.jpg

Among these respondents, 136 (9.5%) reported having remained asymptomatic for at least two weeks before and after a positive test for the virus. The median age was increased in asymptomatic compared to symptomatic individuals (asymptomatic = 41, symptomatic = 33, p < 0.001), and we observed increased reporting for asymptomatic infection in males (p = 0.02). We also collected data on several diseases and conditions that might impact COVID-19 disease course. Among all individuals who reported a positive test for the virus (n = 1,428), 67% reported no known COVID-19-associated comorbidities.