Table 1.
Baseline characteristics of the study participants with coronary artery disease by quartiles of serum Mg and Ca†
| Variables | Quartiles by Mg and Ca |
p-trend | ||||
|---|---|---|---|---|---|---|
| Q1 | Q2 | Q3 | Q4 | |||
| Mg, n | 2829 | 3312 | 2729 | 3064 | ||
| Age, years | 61.1 ± 9.81 | 61.6 ± 10.1 | 61.7 ± 10.0 | 62.4 ± 10.1 | <0.001 | |
| Sex | 0.196 | |||||
| Male, n (%) | 1777 (62.8) | 2083 (62.9) | 1594 (58.4) | 2023 (66.0) | ||
| Female, n (%) | 1052 (37.2) | 1229 (37.1) | 1135 (41.6) | 1041 (34.0) | ||
| BMI, kg/m2 | 25.7 ± 16.1 | 26.0 ± 17.4 | 25.4 ± 13.1 | 25.9 ± 19.2 | 0.923 | |
| Alcohol drinker, n (%) | 253 (8.9) | 308 (9.3) | 237 (8.7) | 279 (9.1) | 0.969 | |
| Smoker, n (%) | 424 (15.0) | 452 (13.6) | 367 (13.4) | 442 (14.4) | 0.511 | |
| Hypotensor agents user, n (%) | 1357 (48.0) | 1576 (47.6) | 1307 (47.9) | 1518 (49.5) | 0.204 | |
| Hypoglycemic agents user, n (%) | 676 (23.9) | 573 (17.3) | 404 (14.8) | 461 (15.0) | <0.001 | |
| hsCRP, mg/L (n=5208) | 6.20 ± 0.35 | 5.14 ± 0.37 | 5.05 ± 0.35 | 5.71 ± 0.39 | 0.327 | |
| Ca, n | 1146 | 1183 | 1171 | 1106 | ||
| Age, years | 64.2 ± 9.92 | 62.1 ± 9.73 | 61.0 ± 9.97 | 59.5 ± 10.7 | <0.001 | |
| Sex | 0.461 | |||||
| Male, n (%) | 730 (63.7) | 788 (66.6) | 757 (64.6) | 729 (65.9) | ||
| Female, n (%) | 416 (36.3) | 395 (33.4) | 414 (35.4) | 377 (34.1) | ||
| BMI, kg/m2 | 25.3 ± 21.1 | 25.1 ± 12.3 | 26.1 ± 18.5 | 25.6 ± 13.2 | 0.432 | |
| Alcohol drinker, n (%) | 87 (7.6) | 107 (9.0) | 109 (9.3) | 94 (8.5) | 0.415 | |
| Smoker, n (%) | 150 (13.1) | 179 (15.1) | 149 (12.7) | 153 (13.8) | 0.985 | |
| Hypotensor agents user, n (%) | 547 (47.7) | 536 (45.3) | 551 (47.1) | 516 (46.7) | 0.858 | |
| Hypoglycemic agents user, n (%) | 236 (20.6) | 207 (17.5) | 203 (17.3) | 206 (18.6) | 0.249 | |
| hsCRP, mg/L (n=1911) | 12.8 ± 0.78 | 7.34 ± 0.78 | 6.55 ± 0.84 | 7.29 ± 0.78 | <0.001 | |
BMI, body mass index. Ca, calcium; hsCRP, hypersensitivity C reactive protein; Mg, Magnesium; Q, quartile.
†
Values were means ± standard deviations or n (%).
p values were calculated using analyses of covariance.