Skip to main content

Table 1 Baseline characteristics and B vitamin intakes of the participants from EMCOA study (n = 2533)

From: Dietary intakes and biomarker patterns of folate, vitamin B6, and vitamin B12 can be associated with cognitive impairment by hypermethylation of redox-related genes NUDT15 and TXNRD1

Baseline characteristics

Overall sample

Men

Women

(N = 2533)

(N = 1165)

(N = 1368)

Demographic characteristics

Age

59 (55, 62)

59 (56, 63)

58 (55, 62)

Education years

9 (9, 12)

12 (9, 12)

9 (9, 12)

BMI (kg/m2)

24.5 (22.7, 26.6)

24.9 (23.2, 27.0)

24.2 (22.3, 26.2)

Lifestyle

Current smoker, n(%)

597 (25.4%)

562 (48.2%)

35 (2.6%)

Current drinker, n(%)

634 (26.9%)

560 (48.1%)

74 (5.4%)

Medical history

Diabetes, n(%)

381 (15.0%)

215 (18.5%)

166 (12.1%)

Hypertension, n(%)

834 (32.9%)

425 (36.5%)

409 (29.9%)

Coronary heart disease, n(%)

250 (9.9%)

148 (12.7%)

102 (7.5%)

Dietary B vitamin intakes

Vitamin B6 (mg/day)

2.3 (1.8, 3.0)

2.4 (1.9, 3.3)

2.2 (1.7~2.8)

1st quartile

0.4~1.8

0.5~1.9

0.4~1.7

2nd quartile

1.8~2.3

1.9~2.4

1.7~2.2

3rd quartile

2.3~3.0

2.4~3.3

2.2~2.8

4th quartile

3.0~17.4

3.3~17.4

2.8~9.5

Folate (μg/day)

388.1 (274.8~534.2)

394.8 (277.5, 551.5)

381.1 (271.9, 518.9)

1st quartile

27.0~274.8

31.5~277.5

27.0~271.1

2nd quartile

274.8~388.1

277.5~394.8

271.1~381.1

3rd quartile

388.1~534.2

394.8~551.5

381.1~518.9

4th quartile

534.2~5952.2

551.5~5952.2)

518.9~3132.2

Vitamin B12 (μg/day)

2.1 (1.3, 3.4)

2.5 (1.6, 4.0)

1.9 (1.1, 2.8)

1st quartile

0~1.3

0~1.6

0~1.1

2nd quartile

1.3~2.1

1.6~2.5

1.1~1.9

3rd quartile

2.1~3.4

2.5~4.0

1.9~2.8

4th quartile

3.4~36.5

4.0~36.5

2.8~23.8

  1. BMI body mass index