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Table 5 Odds ratios for MetS of plasma chromium concentrations by subgroup

From: Association of plasma chromium with metabolic syndrome among Chinese adults: a case-control study

Participant % Quartiles of plasma chromium concentrations Per 1 μg/L Chromium P for interaction
Q1 Q2 Q3 Q4
subgroup
Age        0.056
  < 50 40.1 1 0.89 (0.69–1.16) 1.05 (0.81–1.37) 0.72 (0.52–0.98) 0.97 (0.91–1.03)  
  ≥ 50 59.9 1 0.76 (0.61–0.95) 0.66 (0.53–0.82) 0.60 (0.48–0.74) 0.92 (0.89–0.96)  
Sex        0.161
 Women 39.6 1 0.87 (0.67–1.14) 0.98 (0.75–1.28) 0.76 (0.58–0.99) 0.96 (0.92–1.01)  
 Men 60.4 1 0.73 (0.58–0.91) 0.69 (0.55–0.86) 0.56 (0.44–0.70) 0.91 (0.88–0.95)  
BMI        0.537
  < 24 49.3 1 0.73 (0.56–0.95) 0.79 (0.60–1.03) 0.61 (0.46–0.80) 0.93 (0.89–0.98)  
  ≥ 24 50.7 1 0.93 (0.71–1.22) 0.78 (0.60–1.00) 0.68 (0.52–0.89) 0.94 (0.90–0.98)  
Physical activity        0.271
 No 59.8 1 0.74 (0.60–0.93) 0.82 (0.66–1.03) 0.64 (0.51–0.81) 0.93 (0.89–0.97)  
 Yes 40.2 1 0.89 (0.67–1.17) 0.76 (0.58–0.99) 0.62 (0.47–0.81) 0.94 (0.89–0.98)  
Smoking        0.229
 No 69.2 1 0.85 (0.69–1.04) 0.86 (0.70–1.05) 0.70 (0.57–0.87) 0.94 (0.91–0.98)  
 Yes 30.8 1 0.67 (0.49–0.92) 0.67 (0.49–0.91) 0.49 (0.35–0.67) 0.91 (0.86–0.97)  
Drinking alcohol        0.314
 No 71.2 1 0.85 (0.70–1.04) 0.86 (0.70–1.05) 0.62 (0.50–0.76) 0.93 (0.90–0.96)  
 Yes 28.8 1 0.65 (0.48–0.90) 0.67 (0.49–0.91) 0.67 (0.48–0.93) 0.94 (0.88–1.00)  
  1. Adjusted for age, sex, BMI, education, current smoking status, current alcohol drinking status, physical activity and family history of diabetes
  2. Abbreviations: MetS Metabolic syndrome, SD Standard deviation, BMI Body mass index
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