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Table 3 Gender- and BMI-stratified ORs and 95% CIs for IBS across tertiles of dTAC

From: The association between dietary total antioxidant capacity and odds and severity of irritable bowel syndrome among Iranian adults: a cross-sectional study

 

Tertiles of dTAC

Ptrend

T1

(< 6.06)

T2

(6.06–8.96)

T3

(> 8.96)

OR

OR (95% CI)

OR (95% CI)

Whole population

 Crude

1.00

0.98 (0.80–1.19)

0.92 (0.75–1.12)

0.41

 Model 1a

1.00

1.08 (0.87–1.36)

1.12 (0.88–1.44)

0.35

 Model 2

1.00

1.11 (0.88–1.39)

1.11 (0.86–1.43)

0.43

 Model 3

1.00

1.15 (0.90–1.46)

1.12 (0.86–1.46)

0.42

 Model 4

1.00

1.09 (0.85–1.39)

1.07 (0.81–1.40)

0.64

Male

 Crude

1.00

1.01 (0.73–1.39)

0.94 (0.67–1.31)

0.73

 Model 1b

1.00

1.33 (0.90–1.97)

1.40 (0.91–2.15)

0.13

 Model 2

1.00

1.28 (0.86–1.91)

1.31 (0.85–2.03)

0.23

 Model 3

1.00

1.56 (1.02–2.39)

1.52 (0.95–2.43)

0.09

 Model 4

1.00

1.47 (0.95–2.27)

1.39 (0.86–2.24)

0.21

Female

 Crude

1.00

0.97 (0.75–1.24)

0.90 (0.75–1.24)

0.39

 Model 1b

1.00

0.99 (0.75–1.30)

1.01 (0.75–1.37)

0.94

 Model 2

1.00

1.03 (0.78–1.36)

1.01 (0.74–1.38)

0.95

 Model 3

1.00

1.01 (0.75–1.35)

0.96 (0.69–1.34)

0.83

 Model 4

1.00

0.96 (0.71–1.29)

0.95 (0.68–1.32)

0.77

BMI < 25 (kg/m2)

 Crude

1.00

1.09 (0.83–1.42)

0.80 (0.60–1.42)

0.13

 Model 1a

1.00

1.19 (0.87–1.62)

1.02 (0.72–1.44)

0.91

 Model 2

1.00

1.21 (0.88–1.66)

1.01 (0.71–1.43)

1.00

 Model 3

1.00

1.19 (0.85–1.66)

1.00 (0.69–1.45)

0.97

BMI ≥ 25 (kg/m2)

 Crude

1.00

0.90 (0.66–1.23)

1.05(0.77–1.42)

0.75

 Model 1a

1.00

1.04 (0.73–1.47)

1.25 (0.85–1.83)

0.25

 Model 2

1.00

1.03 (0.72–1.47)

1.21 (0.82–1.79)

0.33

 Model 3

1.00

1.13 (0.78–1.63)

1.25 (0.82–1.88)

0.30

  1. Model 1a: adjusted for age, gender, and energy intake
  2. Model 1b: adjusted for age
  3. Model 2: further adjusted for physical activity, marital status, education level, smoking, chronic disease, medication use and dietary supplement intake
  4. Model 3: further adjusted for regular meal pattern, eating rate, chewing sufficiency, breakfast skipping, fluid consumption, fried food intake, and dental status
  5. Model 4: additionally, adjusted for BMI