Table 1 General characteristics of study population and distribution of Post COVID-19 Condition

Variant

< 0.001

Alpha

1,135 (13.78%)

573 (50.48%)

Delta

3,927 (47.67%)

1,969 (50.14%)

Omicron

3,176 (38.55%)

1,167 (36.74%)

Gender

< 0.001

Male

2,816 (34.56%)

1,035 (36.75%)

Female

5,331 (65.44%)

2,633 (49.39%)

Missing data

91

41

Age

< 0.001

18–25

680 (8.91%)

314 (46.18%)

26–45

3,381 (44.29%)

1,593 (47.12%)

46–65

3,118 (40.84%)

1,388 (44.52%)

66+

455 (5.96%)

139 (30.55%)

Missing data

604

275

Education

< 0.001

Secondary school or below

2,173 (26.74%)

1,083 (49.84%)

Higher education

5,953 (73.26%)

2,563 (43.05%)

Missing data

112

63

Having chronic disease (Yes)

< 0.001

No

7,620 (92.62%)

3,337 (43.79%)

Yes

607 (7.38%)

370 (60.96%)

Missing data

11

2

Body Mass Index (BMI)

< 0.001

Normal (BMI 18.5–24.9)

3,596 (43.65%)

1,542 (42.88%)

Overweight (BMI 25.0-29.9)

2,988 (36.27%)

1,334 (44.65%)

Obesity (BMI 30.0+)

1,654 (20.08%)

833 (50.36%)

Hospitalization (Yes)

< 0.001

No

8,061 (98.96%)

3,613 (44.82%)

Yes

85 (1.04%)

60 (70.59%)

Missing data

92

36

COVID-19 vaccination status

< 0.001

None

483 (5.95%)

199 (41.20%)

Partial

99 (1.22%)

55 (55.56%)

Complete primary schedule

2,396 (29.54%)

1,210 (50.50%)

Complete primary schedule and booster

5,133 (63.28%)

2,180 (42.47%)

Missing data

127

65

Number of Covid-19 symptoms at baseline

< 0.001

None

370 (4.49%)

91 (24.59%)

1–4

2,512 (30.49%)

826 (32.88%)

5–8

3,236 (39.28%)

1,429 (44.16%)

> 8

2,120 (25.73%)

1,363 (64.29%)

Post COVID-19 condition

Neurocognitive symptoms, yes

1,975 (23.97%)

/

Autonomic symptoms, yes

556 (6.75%)

/

Gastrointestinal symptoms, yes

629 (7.64%)

/

Respiratory symptoms, yes

2,217 (26.91%)

/

Musculoskeletal symptoms, yes

1,089 (13.22%)

/

Anosmia and/or dysgeusia, yes

666 (8.08%)

/

Other manifestations, yes

1,376 (16.70%)

/