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Table 2 Comparison of the headache rating after the vaccination between the first and the second vaccination

From: Questionnaire-based study of COVID-19 vaccination induced headache: evidence of clusters of adverse events

  

Q4: Rating after 2nd dose

Sum

N

L

A

Q

V

Q3

Rating after 1st dose

N

775

92

95

89

95

1146

L

32

16

14

12

7

81

A

20

9

22

16

10

77

Q

8

4

12

12

13

49

V

19

2

6

3

19

49

 

Sum

854

12/3

149

132

144

1402

  1. Participants experienced more severe headache after the second dose. Not at all, Little, Average, Quite, Very (abbreviated as “N”, “L”, “A”, “Q”, “V”). First: 1st. Second: 2nd
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BMC Neurology

ISSN: 1471-2377

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