Table 4.
Plasma Magnesium | ||||
---|---|---|---|---|
Q1 | Q2 | Q3 | Q4 | |
Range of magnesium, mg/dL | ≤2.0 | 2.1 to 2.1 | 2.2 to 2.3 | ≥2.4 |
n | 164 | 125 | 405 | 222 |
Age, y | 58 (7)* | 59 (6) | 59 (7) | 60 (6) |
Current smoker, % | 24 | 23 | 27 | 23 |
History of comorbidities, % | ||||
Hypertension | 42 | 47 | 34 | 33 |
Diabetes | 16 | 10 | 9 | 3 |
Parental history of MI, % | 17 | 13 | 18 | 17 |
BMI, kg/m2 | 26.9 (5.4) | 26.4 (5.5) | 25.7 (4.6) | 25.2 (4.3) |
Physical activity, h/week | 3.4 (3.3) | 3.6 (4.0) | 3.6 (4.1) | 4.1 (4.0) |
eGFR, mL/min per 1.73 m2* | 88 (20) | 84 (21) | 84 (18) | 82 (18) |
Cardiovascular biomarkers | ||||
LDL‐cholesterol, mg/dL | 129 (38) | 137 (40) | 141 (36) | 147 (40) |
HDL‐cholesterol, mg/dL | 55 (18) | 57 (16) | 56 (16) | 57 (16) |
C‐reactive protein, mg/dL | 0.49 (0.62) | 0.39 (0.54) | 0.41 (0.76) | 0.28 (0.37) |
HbA1C, % | 5.8 (1.2) | 5.7 (1.1) | 5.7 (1.0) | 5.5 (0.7) |
Adiponectin, mg/L | 8264 (4117) | 8595 (4535) | 8631 (3577) | 9217 (4088) |
Nutrients* | ||||
Magnesium, mg/day | 304 (77) | 304 (61) | 306 (72) | 310 (80) |
Potassium, mg/day | 2904 (536) | 2912 (451) | 2889 (475) | 2924 (518) |
Calcium, mg/day | 1033 (484) | 1033 (514) | 1072 (531) | 1050 (574) |
Alcohol, g/day | 5.3 (8.8) | 4.0 (6.9) | 5.5 (9.7) | 5.2 (9.3) |
Current use of thiazide diuretics, % | 25 | 23 | 14 | 16 |
Current use of postmenopausal hormones, % | 49 | 43 | 32 | 35 |
MI indicates myocardial infarction; BMI, body mass index; eGFR, estimated glomerular filtration rate; LDL, low‐density lipoprotein; HDL, high‐density lipoprotein; HbA1c, hemoglobin A1c; SD, standard deviation.
Mean (SD).
Estimated by the Modification of Diet in Renal Disease Study Group equation.
All nutrients except alcohol were energy adjusted.