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Table 4 Gender- and BMI-stratified ORs and 95% CIs for IBS severity 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

T1

(< 6.06)

T2

(6.06–8.96)

T3

(> 8.96)

OR

OR (95% CI)

OR (95% CI)

Whole population

 Crude

1.00

0.90 (0.69–1.17)

0.88 (0.67–1.15)

 Model 1a

1.00

0.86 (0.64–1.16)

0.86 (0.62–1.19)

 Model 2

1.00

0.90 (0.66–1.21)

0.83 (0.60–1.16)

 Model 3

1.00

0.93 (0.67–1.28)

0.87 (0.61–1.25)

 Model 4

1.00

0.93 (0.67–1.27)

0.82 (0.57–1.18)

Male

 Crude

1.00

1.10 (0.70–1.74)

0.90 (0.56–1.45)

 Model 1b

1.00

0.98 (0.58–1.68)

0.85 (0.47–1.53)

 Model 2

1.00

0.90 (0.52–1.56)

0.74 (0.40–1.36)

 Model 3

1.00

0.94 (0.51–1.74)

0.74 (0.38–1.46)

 Model 4

1.00

0.88 (0.47–1.65)

0.73 (0.90–1.47)

Female

 Crude

1.00

0.81 (0.58–1.22)

0.87 (0.63–1.20)

 Model 1b

1.00

0.80 (0.56–1.14)

0.85 (0.57–1.26)

 Model 2

1.00

0.88 (0.61–1.26)

0.84 (0.56–1.25)

 Model 3

1.00

0.89 (0.61–1.31)

0.92 (0.60–1.41)

 Model 4

1.00

0.91 (0.62–1.34)

0.85 (0.55–1.32)

BMI < 25 (kg/m2)

 Crude

1.00

0.96 (0.67–1.39)

0.91 (0.63–1.33)

 Model 1a

1.00

0.85 (0.56–1.29)

0.85 (0.54–1.33)

 Model 2

1.00

0.94 (0.61–1.43)

0.82 (0.52–1.30)

 Model 3

1.00

1.14 (0.72–1.79)

0.96 (0.59–1.58)

BMI ≥ 25 (kg/m2)

 Crude

1.00

0.81 (0.54–1.21)

0.77 (0.51–1.17)

 Model 1a

1.00

0.80 (0.51–1.25)

0.81 (0.49–1.35)

 Model 2

1.00

0.76 (0.48–1.22)

0.83 (0.49–1.39)

 Model 3

1.00

0.69 (0.42–1.14)

0.73 (0.42–1.30)

  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