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Table 3 Multiple regression analysis for associations between toenail Se levels and glucose metabolic indexes according to dietary Se intake in omnivores

From: Higher toenail selenium is associated with increased insulin resistance risk in omnivores, but not in vegetarians

Dietary Se intake (μg/d) <  60 (n = 155) ≥60 (n = 65)
   β (95%CI) P β (95%CI) P
FG (mmol/L) Model 1 0.391 (0.059, 0.723) 0.06 0.034 (−0.072, 0.140) 0.53
Model 2 0.166 (−0.159, 0.491 0.32 −0.025 (− 0.123, 0.073) 0.62
FI (mU/L) Model 1 2.330 (−0.410, 5.070) 0.10 1.161 (0.469, 1.853) < 0.01
Model 2 2.146 (−0.710, 5.002) 0.14 1.053 (0.415, 1.691) < 0.01
HOMA-IR Model 1 0.614 (0.001, 1.227 0.05 0.279 (0.112, 0.445) < 0.01
Model 2 0.504 (−0.140, 1.148) 0.13 0.237 (0.079, 0.395) < 0.01
HOMA-B (%) Model 1 −4.121 (−63.969, 55.726) 0.89 11.041 (0.670, 21.412) < 0.01
Model 2 13.766 (−46.868, 74.400) 0.66 13.271 (4.433, 22.109) < 0.01
  1. Abbreviations: FG fasting blood glucose, FI fasting insulin, HOMA-IR homeostasis model assessment of insulin resistance, HOMA-β homeostasis model assessment of β cell function
  2. Model 1:unadjusted regression
  3. Model 2:regression with age, sex, BMI, alcohol consumption, income, and daily dietary intakes (energy, protein, fat, carbohydrate, and fiber) controlled