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?:abstract
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There were 13 published studies on COVID‐19 incubation periods up to March 30, 2020, reporting means of 1 8‐8 68 days, and medians 4‐8 06 days, but there was no specific study on the effect of age on incubation period Except for the first study by Li et al,12 which included much older subjects in the parent population but without age information for the 10 patients studied in the incubation period subset, the remaining eight adult studies5,13,14,16,18‐20,22 had median age of 40‐52 years with around 15% aged over 65, not too dissimilar to this study population (median age 50 5 years;16 2% aged over 65 years) [ ]when the clinical and epidemiological study of COVID‐19 by Tian et al20in Beijing was reviewed (Figure 4), it was noted that the incubation period for the severe group (whose subjects were older with median age of 61 4 years and 43 5% aged over 65 years) had a longer median incubation period of 7 5 ± 7 2 days when compared with 6 5 ± 4 6 days for the milder group (whose subjects were younger with median age of 44 5 years and 13% aged over 65 years)
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[This corrects the article DOI: 10.1002/ams2.522.].
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