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Table 5 CVT cases after vaccination, by time since vaccine dose

From: Association of cerebral venous thrombosis with recent COVID-19 vaccination: case-crossover study using ascertainment through neuroimaging in Scotland

Product

Days since vaccination

Rate ratio

1–14

15–28

29–84

1–14 vs 15–84

Person-fortnights exposed

 Pfizer

1,908,751

1,784,505

4,942,003

 AstraZeneca

3,154,182

2,698,048

7,390,991

 Moderna

23,578

17,801

21,013

Cases scored as primary acute

 Pfizer

2

1

0

 AstraZeneca

7

2

5

 Moderna

0

0

0

Rate (95% credible interval) primary acute per million person-fortnights

 Pfizer

1 (0.1 to 2.9)

0.6

0

7 (0.6 to 95.8)

 AstraZeneca

2.2 (0.9 to 4.1)

0.7

0.7

3.2 (1.1 to 9.5)

 Moderna

0

0

0

Cases scored as primary acute or possible

 Pfizer

2

3

1

 AstraZeneca

9

3

7

 Moderna

0

0

0

Rate (95% credible interval) primary acute or possible per million person-fortnights

 Pfizer

1 (0.1 to 2.9)

1.7

0.2

1.8 (0.2 to 8.9)

 AstraZeneca

2.9 (1.3 to 5)

1.1

0.9

2.9 (1.1 to 7.2)

 Moderna

0

0

0