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. 2021 Jul 29;16(7):e0255412. doi: 10.1371/journal.pone.0255412

Table 3. The proportion of individuals infected by the SARS–CoV–2 who were asymptomatic, stratified by sex and age.

N Females % (95% CI) N Males % (95% CI) N Total % (95% CI)
Total 78 24.5 (17.2–34.0) 40 37.7 (25.5–52.0) 118* 30.2 (23.3–38.0)
18–29 years 22 28.9 (12.7–53.0) 9 20.2 (5.7–52.0) 31 24.8 (12.3–44.0)
30–49 years 36 11.7 (4.4–27.0) 23 35.4 (18.0–58.0) 59 22.2 (13.0–35.0)
≥50 years 20 39.6 (27.9–53.0) 8 65.9 (38.4–86.0) 28 49.7 (37.4–62.0)

CI, confidence interval.

*One infected individual did not respond the symptoms questionnaire.