Table 3 The OR (95%CI) of UC across quartile categories of PRAL.

From: Association between dietary acid load and the odds of ulcerative colitis: a case–control study

 

Dietary potential renal acid load

Q1(n = 47)

Q2 (n = 46)

P-value

Q3 (n = 47)

P-Value

Q4 (n = 46)

P-valuea

Cases/controls

11/36

18/28

 

13/34

 

20/26

 

Range of PRAL mEq/day

− 59.49 to − 9.87

− 9.45 to − 0.28

 

− 0.08 to 7.79

 

7.80 to 41.51

 

Model 1*

1.00 (Ref)

2.10 (0.85–5.16)

0.10

1.25 (0.49–3.17)

0.63

2.51 (1.03–6.14)

0.043

Model 2†

1.00 (Ref)

2.18 (0.88–5.41)

0.09

1.29 (0.50–3.32)

0.59

2.99 (1.16–7.72)

0.023

Model 3‡

1.00 (Ref)

2.41 (0.85–6.86)

0.09

1.70 (0.57–5.11)

0.33

3.08 (1.01–9.39)

0.048

  1. Significant values are in bold.
  2. aMultivariable logistic regression test.
  3. *Crude model.
  4. †Adjusted for age and gender.
  5. ‡Additionally adjusted for body mass index, current smoking, education, Helicobacter pylori infection, total energy intake, omega-3 fatty acids, trans-fatty acids, and total dietary fiber.
  6. PRAL potential renal acid load.
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