Table 3.
Ratio (95% CI) of serum triacylglycerol concentrations by quartile (Q) of serum selenium concentrations (n = 5452)
| Q1 (<113.7 ng/mL) | Q2 (113.7–123.6 ng/mL) | Q3 (123.7–134.6 ng/mL) | Q4 (≥134.7 ng/mL) | P for trend | |
|---|---|---|---|---|---|
| Serum triacylglycerols (mg/dL) | 101.11 | 104.3 | 110.8 | 111.9 | |
| Model 12 | 1.00 (reference) | 1.02 (0.95, 1.07) | 1.05 (1.00, 1.12) | 1.05 (1.00, 1.12) | 0.06 |
| Model 23 | 1.00 (reference) | 1.05 (0.98, 1.10) | 1.10 (1.02, 1.15) | 1.12 (1.07, 1.17) | <0.001 |
| Model 34 | 1.00 (reference) | 1.05 (0.98, 1.10) | 1.07 (1.02, 1.15) | 1.10 (1.05, 1.17) | <0.001 |
Geometric x within each quartile (all such values).
Adjusted for age (continuous), sex (male, female), and race-ethnicity (non-Hispanic white, non-Hispanic black, Mexican American, other).
Further adjusted for education (≥12 y of school completed, <12 y of school completed), family income (≥$20 000, <$20 000), postmenopausal status for women (yes, no), cigarette smoking (current, former, never), serum cotinine (continuous), alcohol consumption (current, former, never), physical activity (0, 1-2, ≥3 times/wk), and body mass index (continuous).
Further adjusted for cholesterol-lowering medication use (yes, no), vitamin-mineral supplement use (yes, no), glomerular filtration rate (continuous), C-reactive protein (≥1.0 mg/dL, 0.3-0.9 mg/dL, <0.3 mg/dL), diabetes mellitus (yes, no), thyroid-stimulating hormone (continuous), and thyroxine (continuous).