Table 1 Clinical characteristics of 241 respondents according to the presence of persistent symptoms or signs identified after 12 months of recovery from acute COVID-19 infection

Days from COVID-19 diagnosis to survey, median [IQR]

454.0

[451.0–458.0]

453.0

[450.0–456.0]

455.0

[452.0–458.0]

Days from COVID-19-related symptom onset to diagnosis, median [IQR]

1.0 [0.0–4.0]

0.0 [0.0–3.0]

1.0 [0.0–5.0]

Sex

 Male

77 (32.0%)

48 (42.1%)

29 (22.8%)

 Female

164 (68.0%)

66 (57.9%)

98 (77.2%)

Age, median [IQR] (years)

37.0

[26.0–51.0]

30.0

[25.0–49.0]

41.0

[26.0–52.5]

Age distribution (years)

 17–29

99 (41.1%)

55 (48.2%)

44 (34.6%)

 30–39

31 (12.9%)

15 (13.2%)

16 (12.6%)

 40–49

41 (17.0%)

17 (14.9%)

24 (18.9%)

 50–59

50 (20.7%)

21 (18.4%)

29 (22.8%)

 60–70

20 (8.3%)

6 (5.3%)

14 (11.0%)

Age (years)

 < 50

171 (71.0%)

87 (76.3%)

84 (66.1%)

 ≥ 50

70 (29.0%)

27 (23.7%)

43 (33.9%)

Disease severity

 Asymptomatic

11 (4.6%)

11 (9.6%)

0 (0.0%)

 Mid

194 (80.5%)

93 (81.6%)

101 (79.5%)

 Moderate

30 (12.4%)

10 (8.8%)

20 (15.7%)

 Severe

6 (2.5%)

0 (0.0%)

6 (4.7%)

 Critical

0 (0.0%)

0 (0.0%)

0 (0.0%)

Disease severity

 < Moderate

205 (85.1%)

104 (91.2%)

101 (79.5%)

 ≥ Moderate

36 (14.9%)

10 (8.8%)

26 (20.5%)

Isolation period, median [IQR]

27.0

[21.0–37.0]

27.0

[20.0–36.0]

27.0

[22.0–38.0]

Isolation period

 < 3 weeks

59 (24.5%)

30 (26.3%)

29 (22.8%)

 ≥ 3 weeks

182 (75.5%)

84 (73.7%)

98 (77.2%)

Isolated place*

 Secondary or Tertiary hospital

132 (54.8%)

49 (43.0%)

83 (65.4%)

 Therapeutic living center

106 (44.0%)

63 (55.3%)

43 (33.9%)

 Self-home isolation

3 (1.2%)

2 (1.8%)

1 (0.8%)

Underlying psychiatric disease

 No

249 (99.2%)

113 (99.1%)

126 (99.2%)

 Yes

2 (0.8%)

1 (0.9%)^a

1 (0.8%)^b