Characteristics among 2855 participants according to quartiles of serum Mg. Values are mean (SD) unless otherwise indicated.
| Characteristics | Quartiles of Serum Mg* | ||||
|---|---|---|---|---|---|
| Q1, Lowest | Q2 | Q3 | Q4, Highest | p** | |
| Participants, n | 849 | 670 | 685 | 651 | — |
| Median Mg concentration, mmol/l | 0.84 | 0.90 | 0.94 | 1.00 | — |
| Age, yrs | 51.81 (6.95) | 52.22 (7.32) | 52.35 (7.06) | 52.79 (7.34) | 0.09 |
| BMI, kg/m2 | 24.72 (3.26) | 24.62 (3.29) | 24.63 (3.21) | 24.52 (3.06) | 0.72 |
| Female, % | 45.8 | 43.7 | 42.2 | 40.1 | 0.02 |
| Smoking, % | 25.8 | 26.0 | 25.3 | 23.7 | 0.34 |
| Alcohol drinking, % | 37.0 | 35.2 | 39.3 | 39.5 | 0.17 |
| Nutrients supplementation, % | 33.5 | 34.0 | 34.9 | 32.6 | 0.87 |
| High school diploma, % | 42.5 | 51.3 | 49.2 | 48.8 | 0.02 |
| Waist circumference, cm | 83.22 (9.44) | 823.38 (9.16) | 83.28 (9.13) | 83.75 (8.53) | 0.60 |
| Physical activity level, h/week | 1.93 (3.30) | 1.90 (3.14) | 1.89 (3.12) | 1.89 (3.15) | 0.94 |
| Diabetes, % | 16.3 | 8.8 | 7.9 | 6.8 | 0.00 |
| Hypertension, % | 31.7 | 30.0 | 34.3 | 35.3 | 0.06 |