Skip to main content

Table 1 General characteristics of study participants across quintiles of DII scorea

From: Adherence to the pro-inflammatory diet in relation to prevalence of irritable bowel syndrome

Quintiles of DII score
VariablesQ1Q3Q5P-valueb
DII range−4.49 to −1.41− 0.47 to + 0.44+ 1.38 to + 5.39 
Subjects, n672672672 
Age, y37.7 ± 7.936.8 ± 7.734.9 ± 7.6< 0.001
BMI, kg/m225.4 ± 3.925.04 ± 3.724.2 ± 3.6< 0.001
Psychological distress1.74 ± 2.381.93 ± 2.652.43 ± 2.91< 0.001
Female, %61.357.752.10.005
Married, %81.783.479.90.62
Physically active, %39.931.830.1< 0.001
Current smokers, %3.73.23.80.51
Disease history, %5.84.34.80.04
Regular meal pattern, %   0.18
 Often or always62.86257.3 
 Never or occasionally37.23842.7 
Chewing sufficiency, %   0.36
 A lot14.314.211 
 Not a lot85.785.889 
Fluid consumption, %   0.72
  < 3 glasses97.296.196.5 
  ≥ 3 glasses2.83.93.5 
Tooth loss, %   0.11
 Have all32.630.637.4 
 Lost 1–5 teeth58.162.555.1 
 Lost >5 teeth9.36.97.5 
  1. aData are mean ± standard deviation (SD)
  2. bObtained from ANOVA or chi-square test, where appropriate