Table 1 General characteristics among quartiles of serum selenium concentrations
Q1 (n = 50) | Q2 (n = 51) | Q3 (n = 49) | Q4 (n = 50) | ||
|---|---|---|---|---|---|
<0.98 μmol/L | 0.98-1.136 μmol/L | 1.14-1.30 μmol/L | >1.30 μmol/L | P for trend a | |
Age (y) | 71.8 ± 5.2 | 70.1 ± 3.9 | 71.6 ± 4.8 | 72.5 ± 4.4 | 0.235 |
Sex, male (%) | 26 | 27.5 | 34.7 | 38 | 0.141 |
Body weight (kg) | 57.7 ± 10.7 | 58.3 ± 9.8 | 57.7 ± 8.6 | 56.2 ± 10.1 | 0.521 |
WC (cm) | 82.4 ± 10.6 | 82.3 ± 8.9 | 82.2 ± 8.3 | 80.1 ± 10.3 | 0.253 |
BMI (kg/m2) | 23.9 ± 3.7 | 23.7 ± 3.1 | 23.5 ± 2.6 | 22.6 ± 3.2 | 0.049 |
TCHO (mmol/L) | 5.06 ± 0.83 | 5.27 ± 0.88 | 5.38 ± 1.03 | 5.72 ± 1.01 | 0.0004 |
LnTG (mmol/L) | 0.1 ± 0.44 | 0.2 ± 0.49 | 0.29 ± 0.46 | 0.31 ± 0.51 | 0.002 |
HDL-C (mmol/L) | 1.44 ± 0.27 | 1.49 ± 0.37 | 1.5 ± 0.46 | 1.52 ± 0.35 | 0.271 |
LDL-C (mmol/L) | 3.01 ± 0.69 | 3.1 ± 0.64 | 3.2 ± 0.7 | 3.47 ± 0.71 | 0.0008 |
Sugar-AC (mmol/L) | 5.34 ± 0.73 | 5.68 ± 1.28 | 5.63 ± 0.76 | 5.84 ± 1.45 | 0.04 |
Se (μmol/L) | 0.85 ± 0.09 | 1.07 ± 0.04 | 1.22 ± 0.05 | 1.44 ± 0.1 | <0.0001 |
Current smoking (%) | 4 | 9.8 | 6.1 | 6.1 | 0.9 |
Current drinking (%) | 14 | 17.6 | 16.3 | 10.0 | 0.547 |
HTN (%) | 48 | 45.1 | 49 | 44 | 0.796 |
DM (%) | 8 | 11.8 | 20.4 | 8 | 0.7 |
Lipid Tx (%) | 22 | 17.6 | 20.4 | 24 | 0.732 |
Vegetarian (%) | 4 | 2 | 0 | 6 | 0.703 |
Exercise (min/week) | 340.6 ± 199.3 | 334.8 ± 224.5 | 322.8 ± 240.7 | 333.0 ± 239.2 | 0.808 |
Vitamin-mineral supplement users (%) | 78 | 84.3 | 85.7 | 90 | 0.102 |