Group (with tension headache)
X2 Test
p-value
Study
Control
Mean±SD
Median
Age (years):
<40
11.3±12.7
8.00
111.7±59.6
120.00
20.28
<0.001*
40+
36.3±46.8
16.00
109.7±45.7
7.98
0.005*
Sex:
Male
26.3±44.0
16.0
105.9±62.1
10.08
0.002*
Female
18.5±22.9
12.00
118.2±48.2
144.00
18.49
History of recurrent tension headache:
No
12.3±14.1
92.6±62.7
104.00
10.82
0.001*
Yes
29.6±42.5
127.5±45.1
144.0
18.56
History of abdominal surgery:
20.0±21.1
95.3±68.7
7.66
0.006*
24.6±45.3
121.8±44.5
132.00
16.76
