Group one

middle age population

age < 65 years old

(n = 34)

Group two

elderly population

age > 65 years old

(n = 34)

P value

Age (years)

55 ± 4.4

71 ± 4.7

0.000

Male/female

24/10

23/11

0.801

BMI (kg/m2)

25 ± 3.1

24 ± 2.8

0.182

Hypertension (%)

15 (44)

20 (58)

0.282

Diabetes mellitus (%)

9 (26)

5 (14)

0.254

Smoking (%)

15 (44)

18 (52)

0.447

EF (%)

60.3 ± 8.8

61.3 ± 7.4

0.660

Aspirin use (%)

24 (71)

17 (50)

0.109

Beta-blockers’ use (%)

14 (41)

12 (35)

0.624

ACE inhibitors’ use (%)

3 (8)

6 (17)

0.325

CCB use (%)

8 (23)

14 (41)

0.160

Statins use (%)

19 (55)

17 (50)

0.600

Nitrate use (%)

17 (50)

21 (61)

0.353

SBP (mmHg)

123.4 ± 17.6

128.5 ± 19.4

0.254

DBP (mmHg)

74.8 ± 12.2

71.8 ± 11.9

0.193