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Table 3 Headache frequency before and after endovascular treatment

From: Post procedure headache in patients treated for neurovascular arteriovenous malformations and aneurysms using endovascular therapy

 

Headache day score in relation to endovascular procedure

 

1 year before

1 month before

3 months after

At interview time

Migraine

2 (1 – 7)

n = 9

2.5 (2 – 3)

n = 4

5 (1 – 7)

n = 8

1 (1 – 4)

n = 6

Tension-type headache

3 (1 – 7)

n = 20

1 (1 – 3)

n = 12

2 (0 – 7)

n = 24

1 (0 – 4)

n = 19

  1. Frequency represented as a headache score corresponding to following intervals: 0 = no headache
  2. days, 1 = 1–5 headache days, 2 = 6–12 headache days, 3 = 13–24 headache days, 4 = 25–30 headache days, 5 = 31–45 headache days, 6 = 46–60 headache days, and 7 = more than 60 headache days. Headache scores listed as median and range