Table 2 Impact of COVID-19 vaccination on long COVID symptoms.

From: Characteristics of long COVID and the impact of COVID-19 vaccination on long COVID 2 years following COVID-19 infection: prospective cohort study

Long COVID symptoms

Not vaccinated

Vaccinated

Total

P value

(N = 8)

(N = 113)

(N = 121)

Fatigue

1.000

 Yes

2 (25.0%)

29 (25.7%)

31 (25.6%)

 

 No

6 (75.0%)

84 (74.3%)

90 (74.4%)

 

Amnesia

0.786

 Yes

0 (0.0%)

28 (24.8%)

28 (23.1%)

 

 No

8 (100.0%)

85 (75.2%)

93 (76.9%)

 

Insomnia

0.341

 Yes

0 (0.0%)

23 (20.4%)

23 (19.0%)

 

 No

8 (100.0%)

90 (79.6%)

98 (81.0%)

 

Difficulty concentrating

0.341

 Yes

0 (0.0%)

23 (20.4%)

23 (19.0%)

 

 No

8 (100.0%)

90 (79.6%)

98 (81.0%)

 

Depression

1.000

 Yes

1 (12.5%)

18 (15.9%)

19 (15.7%)

 

 No

7 (87.5%)

95 (84.1%)

102 (84.3%)

 

Anxiety

0.447

 Yes

0 (0.0%)

19 (16.8%)

19 (15.7%)

 

 No

8 (100.0%)

94 (83.2%)

102 (84.3%)

 

Cognitive dysfunction

1.000

 Yes

0 (0.0%)

6 (5.3%)

6 (5.0%)

 

 No

8 (100.0%)

107 (94.7%)

115 (95.0%)

 

Anosmia

1.000

 Yes

1 (12.5%)

7 (6.2%)

8 (6.6%)

 

 No

7 (87.5%)

106 (93.8%)

113 (93.4%)

 

Ageusia

0.291

 Yes

1 (12.5%)

1 (0.9%)

2 (1.7%)

 

 No

7 (87.5%)

112 (99.1%)

119 (98.3%)

 
  1. COVID-19, coronavirus disease 2019.
  2. Data are presented as n (%).