Table 2 Logistic regression analysis for ulcerative colitis severity according to quartiles of DII score.

From: Association between dietary inflammatory index and disease activity in patients with ulcerative colitis

 

DII categories

DII (Continuous)

Q1 (n = 39)

Q2 (n = 40)

Q3 (n = 40)

Q4 (n = 39)

 

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

p-value***

Crude model

1 (Ref)

3.11 (1.22, 7.92)

2.81 (1.10, 7.15)

2.41 (0.94, 6.18)

1.72 (1.05–2.84)

0.03

Model 1*

1 (Ref)

3.24 (1.24, 84.1)

3.34 (1.26, 8.86)

2.85 (1.06, 7.60)

1.95 (1.15–3.31)

0.01

Model 2**

1 (Ref)

3.27 (1.18, 9.01)

3.59 (1.29, 10.04)

3.33 (1.13, 9.76)

2.30 (1.26–4.17)

0.006

  1. DII: dietary inflammatory index; OR: odds ratio; CI: confidence interval; Q: quartile.
  2. Dependent factor: disease severity; independent variable: quartiles of DII.
  3. Disease severity was categorized into remission and mild active (mayo score ≤ 5), and moderately and severe active disease (mayo score ≥ 6).
  4. *Adjusted for body mass index, and nutritional supplement use.
  5. **Adjusted for model 1 plus age, sex, smoking, treatments, comorbidities, and disease duration.
  6. ***p-value of trend.
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