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Table 1 Summary of weather variables in year 2007 at Taipei City, Taiwan

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

Variables

Whole year

Spring (Mar-May)

Summer (Jun-Aug)

Autumn (Sep-Nov)

Winter (Dec-Feb)

Temperature, °C

23.6 ± 5.0

22.5 ± 4.4

29.1 ± 1.8

24.4 ± 3.3

18.5 ± 2.5

Pressure, mmHg

1012.2 ± 6.9

1012.7 ± 4.5

1005.2 ± 3.6

1012.1 ± 7.0

1019.2 ± 3.7

Humidity, %

75.6 ± 8.9

74.8 ± 8.8

74.8 ± 8.3

77.6 ± 8.5

75.1 ± 9.7

Sunshine duration, hour

3.9 ± 3.7

3.6 ± 3.9

4.9 ± 3.2

3.4 ± 3.7

3.5 ± 3.7

Wind speed, m/s

2.4 ± 1.3

2.1 ± 1.1

1.7 ± 1.1

3.3 ± 1.3

2.6 ± 1.1