Research Article

Roles of Achieved Levels of Low-Density Lipoprotein Cholesterol and High-Sensitivity C-Reactive Protein on Cardiovascular Outcome in Statin Therapy

Table 1

Baseline characteristics and statins usage according to quartiles of achieved LDL-C level.

LDL-C
VariablesQuartile 1 (<1.74 mmol/L)Quartile 2 (1.74–2.15 mmol/L)Quartile 3 (2.15–2.67 mmol/L)Quartile 4 (>2.67 mmol/L) value

Male, (%)701 (57.2)593 (49.6)542 (45.7)509 (42.6)<0.001
Age, year60.6 ± 10.759.9 ± 10.659.5 ± 10.958.1 ± 11.2<0.001
BMI, kg/m224.3 ± 3.424.6 ± 3.324.7 ± 3.224.7 ± 3.40.285
HTN, (%)854 (69.7)845 (70.7)862 (72.6)767 (64.2)0.017
DM, (%)829 (67.6)624 (52.2)582 (49.0)602 (50.4)<0.001
 Insulin262 (21.4)178 (14.9)166 (14.0)176 (14.7)<0.001
 Oral medication769 (62.7)564 (47.2)499 (42.0)515 (43.1)<0.001
Newly diagnosed40 (3.3)49 (4.1)66 (5.6)69 (5.8)0.001
CKD, (%)116 (9.5)114 (9.5)106 (8.9)111 (9.3)0.770
eGFR, mL/min92.2 ± 30.192.4 ± 29.190.4 ± 27.389.9 ± 27.10.102
HF, (%)73 (6.0)56 (4.7)52 (4.4)51 (4.3)0.051
Persistent AF, (%)41 (3.3)47 (3.9)44 (3.7)43 (3.6)0.815
Angina pectoris, (%)342 (27.9)353 (29.5)320 (27.0)277 (23.2)0.004
Chest pain, (%)302 (24.6)303 (25.3)279 (23.5)235 (19.7)0.002
Vasospastic angina, (%)40 (3.3)50 (4.2)41 (3.5)42 (3.5)0.978

Laboratory findings
TC, mmol/L3.13 ± 0.473.65 ± 0.364.14 ± 0.365.21 ± 0.75<0.001
TG, mmol/L1.36 ± 1.021.39 ± 0.861.56 ± 0.951.83 ± 0.97<0.001
HDL-C, mmol/L1.30 ± 0.361.32 ± 0.311.35 ± 0.311.37 ± 0.34<0.001
LDL-C, mmol/L1.42 ± 0.261.94 ± 0.132.41 ± 0.163.37 ± 0.62<0.001
hsCRP, nmol/L31.43 ± 95.2423.81 ± 79.0524.76 ± 106.6728.57 ± 89.530.156
Fasting glucose, mmol/L6.88 ± 2.056.66 ± 2.056.66 ± 2.116.83 ± 2.610.018
HbA1c, %6.9 ± 1.26.7 ± 1.26.7 ± 1.36.8 ± 1.30.002
Cr, μmol/L76.3 ± 83.976.3 ± 91.576.3 ± 91.576.3 ± 83.90.949
Lipoprotein (a), μmmol/L0.71 ± 0.710.93 ± 1.001.07 ± 1.071.25 ± 1.36<0.001
Apo A-I, g/L1.34 ± 0.281.41 ± 0.251.45 ± 0.221.49 ± 0.26<0.001
Apo B, g/L0.50 ± 0.100.62 ± 0.090.74 ± 0.100.95 ± 0.19<0.001
Apo C-II, g/L0.03 ± 0.010.04 ± 0.020.04 ± 0.020.05 ± 0.02<0.001
Apo E, g/L0.02 ± 0.0180.03 ± 0.010.03 ± 0.010.04 ± 0.01<0.001

Type of statins<0.001
Atorvastatin, (%)617 (50.3)650 (54.3)601 (50.6)535 (44.8)
Simvastatin, (%)251 (20.5)243 (20.3)243 (20.5)274 (22.9)
Rosuvastatin, (%)243 (19.8)175 (14.6)145 (12.2)191 (16.0)
Pitavastatin, (%)60 (4.9)70 (5.9%)103 (8.7%)88 (7.4)
Pravastatin, (%)25 (2.0)34 (2.8)51 (4.3)67 (5.6)
Fluvastatin, (%)30 (2.4)24 (2.0)44 (3.7)39 (3.3)
Follow-up, days1,639 ± 7511,682 ± 7691,792 ± 7551,887 ± 803<0.001

LDL-C, low-density lipoprotein cholesterol; BMI, body mass index; HTN, hypertension; DM, diabetes mellitus; CKD, chronic kidney disease; eGFR, estimated glomerular filtration rate; HF, heart failure; AF, atrial fibrillation; TC, total cholesterol; TG, triglyceride; HDL-C, high-density lipoprotein cholesterol; hsCRP, high-sensitivity C-reactive protein; HbA1c, glycated hemoglobin; Cr, creatinine; Apo, apolipoprotein.