Table 1 Demographic characteristics and risk factors for all participants by sex group

Total, n (%)

500 (46.3)

581 (53.7)

1081 (100)

–

Age, means (SD)

67.96 (6.42)

67.47 (6.48)

67.70 (6.46)

0.209

Age group, n (%)

  0.209

 60–64 years

190 (38.0)

249 (42.9)

439 (40.6)

 65–69 years

138 (27.6)

157 (27.0)

295 (27.3)

 ≥ 70 years

172 (34.4)

175 (30.1)

348 (32.1)

Education, years, mean (SD)

5.35 (2.72)

2.62 (2.94)

3.88 (3.15)

 < 0.001

Education, n (%)

 < 0.001

 0–5 years

203 (40.6)

451 (77.6)

654 (60.5)

 6–8 years

219 (43.8)

101 (17.4)

320 (29.6)

 ≥ 9 years

78 (15.6)

29 (5.0)

107 (9.9)

Smoking, n (%)

 < 0.001

 No

136 (27.2)

261 (44.9)

397 (36.7)

 Yes

364 (72.8)

320 (55.1)

684 (63.3)

Drinking, n (%)

 < 0.001

 No

280 (56.0)

492 (84.7)

772 (71.4)

 Yes

220 (44.0)

89 (15.3)

309 (28.6)

Hypertension, n (%)

0.568

 No

106 (21.2)

115 (19.8)

221 (20.4)

 Yes

394 (78.8)

466 (80.2)

860 (79.6)

Diabetes, n (%)

0.012

 No

432 (86.4)

469 (80.7)

901 (83.3)

 Yes

68 (13.6)

112 (19.3)

180 (16.7)

MMSE score, mean (SD)

22.30 (4.54)

19.13 (5.31)

20.60 (5.21)

 < 0.001

MMSE group, n (%)

 < 0.001

 Non-CI

367 (73.4)

355 (61.1)

722 (66.8)

 CI

133 (26.6)

226 (38.9)

359 (33.2)

Body height (dm), mean (SD)

16.46 (0.56)

15.32 (0.55)

15.85 (0.80)

 < 0.001

WC (cm), mean (SD)

88.58 (9.29)

89.21 (8.68)

88.92 (8.97)

0.250

SBP, mean (SD)

153.66 (23.06)

154.95 (23.28)

154.35 (23.18)

0.360

DBP, mean (SD)

87.05 (11.53)

85.52 (11.76)

86.23 (11.67)

0.031

FBG, mean (SD)

5.84 (1.18)

6.18 (1.93)

6.02 (1.64)

0.001

TC, mean (SD)

4.56 (0.95)

5.18 (1.07)

4.89 (1.06)

 < 0.001

TG, mean (SD)

1.41 (0.83)

1.82 (1.29)

1.63 (1.12)

 < 0.001

HDL, mean (SD)

1.42 (0.44)

1.53 (0.47)

1.48 (0.46)

 < 0.001

LDL, mean (SD)

2.49 (0.79)

2.85 (0.90)

2.68 (0.87)

 < 0.001