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Table 2 Multiple regression analysis for associations between toenail Se levels and glucose metabolic indexes in vegetarians and omnivores

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

   Vegetarian (n = 220) Omnivore (n = 220)
β (95%CI) P β (95%CI) P
FG (mmol/L) Model 1 0.340 (− 0.224, 0.905) 0.24 0.079 (− 0.022, 0.180) 0.13
Model 2 0.303 (− 0.278, 0.885) 0.31 0.029 (− 0.065, 0.122) 0.55
FI Model 1 1.427 (−0.503, 3.357) 0.15 1.294 (0.532, 2.056) < 0.01
Model 2 1.190 (−0.707, 3.086) 0.22 1.030 (0.393, 1.667) < 0.01
HOMA-IR Model 1 0.358 (−0.136, 0.851) 0.16 0.319 (0.144, 0.493) < 0.01
Model 2 0.288 (−0.201, 0.776) 0.25 0.245 (0.098, 0.392) < 0.01
HOMA-B(%) Model 1 13.560 (−27.543, 54.663) 0.52 8.99 (−6.67, 24.65) 0.26
Model 2 8.568 (−32.381, 49.517) 0.68 9.99 (−4.44, 24.43) 0.18
  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