Table 1 Demographic and clinical characteristics of the study population

Age (years)

0.15

≤ 49

214 (16.7)

105 (15.8)

109 (17.6)

50-59

304 (23.7)

144 (21.7)

160 (25.8)

60-69

363 (28.3)

193 (29.1)

170 (27.5)

≥ 70

402 (31.3)

222 (33.4)

180 (29.1)

Mean (SD)

62.4 (12.3)

63.0 (12.0)

61.7 (12.7)

0.05*

Range

21-103

21-91

26-103

Gender

0.003

Male

950 (74.0)

468 (70.5)

482 (77.9)

Female

333 (26.0)

196 (29.5)

137 (22.1)

Marital status

0.11

Single

42 (3.3)

24 (3.6)

18 (2.9)

Married

1024 (79.8)

515 (77.6)

509 (82.2)

Widowed/divorced

217 (16.9)

125 (18.8)

92 (14.9)

Education (years)

0.95

0

337 (26.3)

177 (26.7)

160 (25.8)

1-5

285 (22.3)

145 (21.8)

140 (22.6)

6-9

313 (24.4)

160 (24.1)

153 (24.7)

10-12

218 (16.9)

111 (16.7)

107 (17.2)

> 12

130 (10.1)

71 (10.7)

59 (9.5)

Employment

0.06

Housewife

282 (22.0)

157 (23.6)

125 (20.2)

Employed

615 (47.9)

297 (44.7)

318 (51.4)

Unemployed

115 (9.0)

68 (10.2)

47 (7.6)

Retired

271 (21.1)

142 (21.4)

129 (20.8)

BMI (kg/m ² )*

0.25

≤ 24.9

362 (28.3)

180 (27.1)

182 (29.4)

25-29.9

728 (56.7)

374 (56.3)

354 (57.2)

≥ 30

193 (15.0)

110 (16.6)

83 (13.4)

Hypertension

0.44

No

703 (54.8)

357 (53.8)

346 (55.9)

Yes

580 (45.2)

307 (46.2)

273 (44.1)

Diabetes

0.99

No

833 (64.9)

431 (64.9)

402 (64.9)

Yes

450 (35.1)

233 (35.1)

217 (35.1)

Hyperlipidemia

0.43

No

601 (46.8)

304 (45.8)

297 (48.0)

Yes

682 (53.2)

360 (54.2)

322 (52.0)

History of smoking

0.03

No

416 (32.4)

198 (29.8)

218 (35.2)

Yes

867 (67.6)

466 (70.2)

4.01 (64.8)

Treatment

< 0.0001**

Coronary artery bypass graft

333 (26.0)

232 (34.9)

101 (16.3)

Non-surgical

950 (74.0)

432 (65.1)

518 (83.7)