Table 1 Baseline characteristics of the study population.

From: Baseline low-density lipoprotein cholesterol predicts the benefit of adding ezetimibe on statin in statin-naïve acute coronary syndrome

Variables†

Statin naïve; all patients (n = 1429)

LDL-C < 131 mg/dL group (n = 686)

LDL-C ≥ 131 mg/dL group (n = 743)

P value*

Age (years)

65.3 ± 11.9

67.4 ± 12.0

63.3 ± 11.5

 < 0.0001

Male

1113 (77.9%)

555 (80.9%)

558 (75.1%)

0.01

BMI (kg/m2)

24.1 ± 3.5

23.9 ± 3.4

24.3 ± 3.5

0.06

Estimated GFR (mL/min/1.73 m2)

74.1 ± 25.9

72.3 ± 32.0

75.8 ± 18.5

 < 0.0001

Hypertension

939 (65.7%)

474 (69.1%)

465 (62.6%)

0.01

Diabetes mellitus

398 (27.9%)

202 (29.5%)

196 (26.4%)

0.20

Current smoker

520 (36.4%)

218 (31.8%)

302 (40.7%)

 < 0.0001

Previous myocardial infarction

76 (5.3%)

42 (6.1%)

34 (4.6%)

0.19

Previous revascularization

86 (6.0%)

53 (7.7%)

33 (4.4%)

0.009

Type of index event

0.20

STEMI

768 (53.7%)

356 (51.9%)

412 (55.5%)

 

Non-STEMI

155 (10.8%)

71 (10.4%)

84 (11.3%)

 

Unstable angina pectoris

506 (35.4%)

259 (37.8%)

247 (33.2%)

 

Medication

Beta-blockers

116 (8.1%)

76 (11.1%)

40 (5.4%)

 < 0.0001

ACEI/ARB

338 (23.7%)

207 (30.2%)

141 (19.0%)

 < 0.0001

Aspirin

176 (12.3%)

114 (16.6%)

62 (8.3%)

 < 0.0001

Cholesterol metabolism at baseline (mg/dL)

Total cholesterol

213 ± 35.5

187 ± 19.3

236 ± 31.2

 < 0.0001

HDL-cholesterol

48.4 ± 12.4

47.8 ± 12.8

48.9 ± 11.9

0.02

LDL-cholesterol

138 ± 29.8

115 ± 10.1

159 ± 25.2

 < 0.0001

Triglyceride

130 ± 71.0

123 ± 68.7

137 ± 72.4

 < 0.0001

High-sensitivity CRP (mg/L)

8.51 [2.46, 26.1]

7.86 [2.37, 25.23]

9.24 [2.50, 27.05]

0.33

Markers of cholesterol absorption/synthesis (µg/L)

Sitosterol

2.46 ± 1.57

2.18 ± 1.21

2.72 ± 1.80

 < 0.0001

Lathosterol

1.96 ± 1.31

1.85 ± 1.19

2.06 ± 1.41

0.007

Campesterol

4.66 ± 2.40

4.16 ± 1.93

5.12 ± 2.69

 < 0.0001

  1. *P value refers to comparison between low LDL-C group and high LDL-C group.
  2. Abbreviations: BMI, body mass index; GFR, glomerular filtration rate; STEMI, ST-elevation myocardial infarction; ACEI, angiotensin-converting enzyme inhibitors; ARB, angiotensin II receptor blockers; HDL, high-density lipoprotein; LDL-C, low-density lipoprotein cholesterol; CRP, C-reactive protein.
  3. Data are expressed as mean ± standard deviation, median [interquartile range], or as number (percentage).