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Table 3 Association between the degree of anxiety and GI symptoms in IBS-C subjects

From: Impact of symptoms by gender and age in Japanese subjects with irritable bowel syndrome with constipation (IBS-C): a large population-based internet survey

GI symptoms/Degree of anxiety Female Male
None Sometimes Often Almost Kendall’s τ None Sometimes Often Almost Kendall’s τ
Abdominal bloating      0.08      0.09
 No 30 62 9 5   12 29 4 0  
 Yes 96 247 71 21   38 102 27 6  
Abdominal discomfort      0.11*      0.04
 No 55 97 22 7   21 56 12 1  
 Yes 71 212 58 19   29 75 19 5  
Abdominal pain      0.13*      0.06
 No 95 223 47 12   37 100 23 1  
 Yes 31 86 33 14   13 31 8 5  
  Age 20–49 years Age 50–79 years
Abdominal bloating      0.12*      0.05
 No 19 52 9 4   23 39 4 1  
 Yes 51 173 75 21   83 176 23 6  
Abdominal discomfort      0.09      0.08
 No 28 79 22 7   48 74 12 1  
 Yes 42 146 62 18   58 141 15 6  
Abdominal pain      0.13*      −0.01
 No 50 148 49 9   82 175 21 4  
 Yes 20 77 35 16   24 40 6 3  
  1. GI gastrointestinal
  2. *p < 0.05, the Kendall’s τ-b