Table 4.

Studies reporting long-COVID data and the percent of outpatients with persisting symptoms.

Date	Study Size	Mean Population Age (Standard Deviation, When Provided)	Gender	Percent of Outpatients with Persisting Symptoms	Source
May 2020	350	Median: 43 *	F: 53% M: 47%	36% (14–21 days)	[81]
March 2021	177	48	F: 57.1% M: 42.9%	32% (median: 169 days)	[80]
April 2021	4182	45.97 (15.8)	F: 71.5% M: 28.5%	13.3% (28+ days)	[13]
July 2020	143	56.5 (14.6)	F: 37% M: 63%	87.4% (Mean 60.3 days [SD: 13.6])	[82]
Sep 2021	106,578	39.4 (18.4)	F: 58.4% M: 41.6%	36.55% (90–180 days)	[83]
Feb 2022	5,080,312	See source **	F: 61.2% M: 38.8%	35% (31–150 days)	[84]

* Only the median age is provided in this study; ** Mean age of study participants was not provided in this study. However, study participants were categorized as older or younger than 20 years of age.