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Table 2 Univariate and multivariate logistic regression models for the relation of DII score to urinary risk factors of kidney stone formation

From: The association of dietary inflammatory index with urinary risk factors of kidney stones formation in men with nephrolithiasis

  Dietary inflammatory index score
Model 1 (Crude model) Model 2 Model 3 Model 4
Odds ratio (95% CI) Odds ratio (95% CI) Odds ratio (95% CI) Odds ratio (95% CI)
Hypercreatininuria
 T1 1 1 1 1
 T2 1.62 (0.88–3.01) 0.92 (0.45–1.89) 0.85 (0.41–1.78) 0.84 (0.38–1.85)
 T3 7.60 (3.28–17.61) 3.10 (1.23–7.81) 2.80 (1.10–7.12) 2.21 (0.78–6.28)
 P value for trend ≤ 0.001 0.02 0.04 0.19
Hypocitraturia
 T1 1 1 1 1
 T2 1.60 (0.81–3.17) 1.53 (0.75–3.11) 1.69 (0.82–3.49) 1.16 (0.55–2.44)
 T3 6.04 (2.35–15.55) 5.64 (2.10–15.15) 5.84 (2.14–15.91) 3.40 (1.17–9.86)
 P value for trend ≤ 0.001 0.001 ≤ 0.001 0.03
Hyperoxaluria
 T1 1 1 1 1
 T2 1.34 (0.72–2.48) 1.47 (0.77–2.79) 1.63 (0.84–3.16) 1.46 (0.74–2.88)
 T3 0.86 (0.47–1.58) 0.99 (0.52–1.90) 1.12 (0.57–2.19) 0.87 (0.41–1.83)
 P value for trend 0.64 0.95 0.78 0.69
Hyperuricosuria
 T1 1 1 1 1
 T2 1.69 (0.92–3.12) 1.08 (0.55–2.13) 1.20 (0.59–2.42) 0.94 (0.45–1.95)
 T3 4.40 (2.16–8.94) 2.14 (0.98–4.67) 2.22 (1.001–4.95) 1.35 (0.56–3.24)
 P value for trend ≤ 0.001 0.06 0.05 0.53
Hypercalciuria
 T1 1 1 1 1
 T2 1.34 (0.72–2.51) 1.13 (0.59–2.18) 1.02 (0.52–2.00) 0.96 (0.48–1.91)
 T3 10.45 (3.84–28.39) 8.11 (2.88–22.83) 7.44 (2.62–21.14) 6.22 (2.06–18.77)
 P value for trend ≤ 0.001 ≤ 0.001 ≤ 0.001 0.003
  1. Model 2: adjusted for energy intake
  2. Model 3: additionally adjusted for age, BMI, and physical activity
  3. Model 4: adjusted for carbohydrate, fiber and protein intake