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Table 5 Crude and multivariable-adjusted ORs and 95% CIs for IBS subtypes 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)

IBS-C

 Crude

1.00

0.77 (0.56–1.06)

0.93 (0.68–1.26)

0.63

 Model 1

1.00

0.75 (0.52–1.08)

0.99 (0.68–1.45)

0.99

 Model 2

1.00

0.76 (0.52–1.09)

0.95 (0.64–1.40)

0.82

 Model 3

1.00

0.73 (0.50–1.07)

0.92 (0.62–1.39)

0.71

 Model 4

1.00

0.69 (0.46–1.01)

0.90 (0.60–1.37)

0.64

IBS-D

 Crude

1.00

1.02 (0.69–1.51)

1.04 (0.70–1.54)

0.84

 Model 1

1.00

1.24 (0.79–1.96)

1.39 (0.85–2.28)

0.19

 Model 2

1.00

1.23 (0.78–1.96)

1.42 (0.86–2.33)

0.17

 Model 3

1.00

1.35 (0.84–2.19)

1.52 (0.90–2.56)

0.12

 Model 4

1.00

1.39 (0.86–2.25)

1.43 (0.84–2.43)

0.20

IBS-M

 Crude

1.00

0.98 (0.64–1.48)

0.82 (0.53–1.27)

0.38

 Model 1

1.00

0.95 (0.59–1.51)

0.89 (0.53–1.50)

0.66

 Model 2

1.00

0.95 (0.59–1.52)

0.89 (0.52–1.51)

0.66

 Model 3

1.00

1.16 (0.70–1.92)

1.08 (0.61–1.90)

0.80

 Model 4

1.00

1.11 (0.67–1.85)

1.01 (0.57–1.79)

0.98

IBS-U

 Crude

1.00

1.26 (0.90–1.76)

0.93 (0.65–1.34)

0.72

 Model 1

1.00

1.56 (1.06–2.27)

1.21 (0.78–1.87)

0.42

 Model 2

1.00

1.60 (1.09–2.34)

1.19 (0.76–1.85)

0.46

 Model 3

1.00

1.53 (1.03–2.29)

1.07 (0.67–1.72)

0.78

 Model 4

1.00

1.43 (0.95–2.15)

1.05 (0.65–1.70)

0.72

  1. IBS-C: IBS with constipation; IBS-D: IBS with diarrhea; IBS-M: mixed IBS; IBS-U: unsubtyped IBS
  2. Model 1: adjusted for age, gender, and energy intake
  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