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Table 3 Risk factors categorized by age tertiles

From: Prevalence and trends of coronary artery disease risk factors and their effect on age of diagnosis in patients with established coronary artery disease: Tehran Heart Center (2005–2015)

 

Age tertiles

 ≤ 55

n = 28,390

56–65

n = 30,343

 ≥ 66

n = 31,361

Sex

      

Female

6424

(22.6%)

10,252

(33.8%)

11,734

(37.4%)

Male

21,966

(77.4%)

20,091

(66.2%)

19,627

(62.6%)

Body mass index (kg/m2)

28.1

(4.28)

27.9

(4.38)

27.2

(4.32)

Total cholesterol (mg/dL)

178.2

(48.37)

174.3

(47.11)

170.8

(46.20)

LDL cholesterol (mg/dL)

108.8

(39.78)

106.2

(38.47)

103.8

(37.73)

HDL cholesterol (mg/dL)

38.4

(10.01)

40.1

(10.51)

41.6

(11.04)

Triglyceride (mg/dL)

181.9

(110.49)

164.4

(94.79)

144.4

(81.36)

Dyslipidemia

      

No

9453

(33.4%)

9942

(32.8%)

12,735

(40.7%)

Yes

18,880

(66.6%)

20,351

(67.2%)

18,538

(59.3%)

Fasting blood sugar (mg/dL)

119.4

(52.74)

125.8

(56.10)

120.6

(50.80)

Diabetes Mellitus

      

No

20,299

(71.6%)

18,558

(61.2%)

20,416

(65.2%)

Yes

8064

(28.4%)

11,753

(38.8%)

10,887

(34.8%)

Hypertension

      

No

15,353

(54.1%)

12,294

(40.6%)

10,455

(33.4%)

Yes

13,010

(45.9%)

18,022

(59.4%)

20,867

(66.6%)

Ever cigarette smoking

      

No

14,097

(49.7%)

19,044

(62.8%)

22,767

(72.7%)

Current

9617

(33.9%)

6283

(20.7%)

3420

(10.9%)

Former

4641

(16.4%)

4974

(16.4%)

5112

(16.3%)

Ever opium use

      

No

22,203

(80.7%)

25,215

(85.6%)

27,909

(91.8%)

Current

4148

(15.1%)

3473

(11.8%)

2128

(7.0%)

Former

1152

(4.2%)

766

(2.6%)

354

(1.2%)

  1. Numbers and percentages are shown for categorical variables (sex, dyslipidemia, diabetes, hypertension, ever cigarette smoking, and ever opium use). Means and standard deviations are presented for continuous variables (age; body mass index; total, LDL, HDL cholesterol; triglycerides; fasting blood sugar)
  2. All p-values were < 0.001 in Chi square and one-way ANOVA analysis