Table 3. Baseline characteristics of participants in different cut-off value groups.
| Characteristics | Cut-off1 | Cut-off 2 | ||
|---|---|---|---|---|
| <170 mg/l (n = 1644) | ≥170 mg/l (n = 873) | <300 mg/l (n = 2085) | ≥300 mg/l (n = 432) | |
| Age, year | 60.64 ± 9.74 | 61.56 ± 9.68* | 60.83 ± 9.73 | 61.56 ± 9.69 |
| Male, n (%) | 953 (57.97) | 526 (60.25) | 1226 (58.80) | 253 (58.56) |
| Smoking, (%) | 182 (11.07) | 214 (24.51)*** | 493 (23.65) | 103 (23.84) |
| EH, % | 967 (58.82) | 520 (59.56) | 1224 (58.71) | 263 (60.88) |
| DM, % | 251 (15.27) | 121 (13.86) | 306 (14.68) | 66 (15.28) |
| AMI, % | 329 (20.01) | 229 (26.23)*** | 438 (21.01) | 120 (27.78)*** |
| TC, mmol/l | 4.32 ± 0.78 | 4.45 ± 0.74*** | 4.34 ± 0.78 | 4.48 ± 0.74** |
| TG, mmol/l | 1.45 (1.0–2.19) | 1.25 (0.93–1.80)*** | 1.40 (0.9–2.09) | 1.29 (0.96–1.83)* |
| HDL-C, mmol/l | 1.12 ± 0.31 | 1.17 + 0.32*** | 1.12 ± 0.32 | 1.19 ± 0.31*** |
| LDL-C, mmol/l | 2.45 ± 0.55 | 2.58 + 0.49*** | 2.47 ± 0.54 | 2.59 ± 0.49* |
| ApoA, g/l | 1.16 ± 0.24 | 1.15 ± 0.24 | 1.15 ± 0.24 | 1.17 ± 0.23 |
| ApoB, g/l | 0.82 ± 0.25 | 0.82 ± 0.22 | 0.82 ± 0.24 | 0.84 ± 0.24 |
| LP (a), mg/l | 72 (39–1110) | 294 (219–442)*** | 90.0 (48–152) | 445 (360–650)*** |
Abbreviations: AMI, acute myocardial infarction; Apo, apolipoprotein; DM, diabetes mellitus; EH, essential hypertension; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; TC, total cholesterol; TG, triglyceride.
Bold values indicate statistical significance.
*Compared with low Lp(a) group, P<0.05; **compared with low Lp(a) group, P<0.01; ***compared with low Lp(a) group, P<0.001.