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Table 3 Mean daily headache incidence (%) in each season in year 2007

From: Patients with migraine are right about their perception of temperature as a trigger: time series analysis of headache diary data

Groups

Whole year

Spring1 (Mar-May)

Summer2 (Jun-Aug)

Autumn3 (Sep-Nov)

Winter4 (Dec-Feb)

P*

Post-hoc*

All patients (N = 66)

22.5 ± 4.8

23.8 ± 4.9

21.3 ± 4.3

21.4 ± 4.8

23.6 ± 4.4

<0.001

1 > 2; 1 > 3; 4 > 2; 4 > 3

Temperature sensitive patients (N = 34)

19.7 ± 6.6

19.3 ± 6.4

18.9 ± 5.9

19.1 ± 6.9

21.5 ± 7.1

0.031

4 > 3; 4 > 2; 4 > 1

Temperature non-sensitive patients (N = 32)

25.5 ± 6.5

28.5 ± 6.2

23.7 ± 5.8

23.8 ± 5.9

25.9 ± 6.9

<0.001

1 > 2; 1 > 3; 1 > 4

  1. *Headache incidence of four seasons was compared by ANOVA and LSD post-hoc test