Table 1 Baseline characteristics according to self-reported irregular daily routine.

From: Association between irregular daily routine and risk of incident stroke and coronary heart disease in a large Japanese population

 

Men

p values*

Women

p values*

Regular

Irregular

Regular

Irregular

Number of participants

26,801

9409

 

32,822

9083

 

Age (years)

57 ± 8

55 ± 7

 < 0.001

57 ± 8

56 ± 7

 < 0.001

BMI (kg/m2)

23.5 ± 2.9

23.8 ± 3.2

 < 0.001

23.4 ± 3.1

24.0 ± 3.5

 < 0.001

Living alone† (%)

696 (2.6)

480 (5.2)

 < 0.001

1944 (6.0)

765 (8.6)

 < 0.001

Non-smoker† (%)

9568 (37.9)

2723 (30.9)

 < 0.001

29,245 (95.3)

7616 (90.9)

 < 0.001

Non-drinker (%)

7199 (26.9)

2407 (25.6)

0.016

27,518 (83.8)

7299 (80.4)

 < 0.001

Job type†

Farming, forestry, fishery, self-employed (%)

4986 (23.4)

2448 (31.0)

 < 0.001

2555 (9.3)

1302 (17.0)

 < 0.001

Office work, profession, other work (%)

13,616 (64.0)

4677 (59.2)

9082 (33.0)

2547 (33.2)

Homemaker, unemployed (%)

2672 (12.6)

777 (9.8)

15,892 (57.7)

3824 (49.8)

Working hours†

< 5 h (%)

3574 (14.3)

1027 (11.8)

 < 0.001

9867 (33.2)

2209 (27.1)

 < 0.001

≥ 5 h and < 9 h (%)

17,402 (69.5)

4831 (55.3)

16,865 (56.7)

4386 (53.8)

≥ 9 h (%)

4075 (16.3)

2871 (32.9)

2988 (10.1)

1558 (19.1)

Perceived mental stress†

Low or middle (%)

22,925 (86.0)

6502 (69.7)

 < 0.001

28,230 (86.6)

6253 (69.4)

 < 0.001

High (%)

3717 (14.0)

2831 (30.3)

4366 (13.4)

2762 (30.6)

Total physical activity (METs/week)

34.1 ± 6.7

33.7 ± 6.7

 < 0.001

32.7 ± 5.7

33.2 ± 5.8

 < 0.001

Sleep duration ≤ 5 h† (%)

462 (1.7)

618 (6.6)

 < 0.001

976 (3.0)

858 (9.5)

 < 0.001

Skipping breakfast† (%)

2705 (10.3)

2663 (28.8)

 < 0.001

3457 (10.7)

2357 (26.6)

 < 0.001

Energy intake (kcal/day)

2185 ± 670

2198 ± 713

0.114

1883 ± 624

1893 ± 666

0.206

Vegetables and fruits (g/day)

398.3 ± 231.6

357.9 ± 223.4

 < 0.001

499.1 ± 245.2

481.8 ± 253.3

 < 0.001

Vegetables (g/day)

211.4 ± 135.6

189.2 ± 126.5

 < 0.001

245.1 ± 140.0

233.8 ± 141.7

 < 0.001

Fruits (g/day)

187.5 ± 156.0

169.4 ± 153.4

 < 0.001

254.9 ± 178.5

249.2 ± 191.8

0.010

Fish (g/day)

95.3 ± 56.6

93.1 ± 60.4

0.002

91.1 ± 51.5

89.1 ± 53.4

0.001

Meat (g/day)

65.1 ± 43.4

68.0 ± 45.6

 < 0.001

58.3 ± 38.9

61.0 ± 42.7

 < 0.001

Fibre (g/day)

12.6 ± 4.8

11.3 ± 4.6

 < 0.001

14.3 ± 4.7

13.7 ± 4.9

 < 0.001

Sodium (mg/day)

5049 ± 1607

4953 ± 1700

 < 0.001

4943 ± 4658

4923 ± 1584

0.507

  1. Values are expressed as mean ± standard deviation or number (%).
  2. *Determined by t-test or Chi-square test.
  3. †Participants with missing information were excluded (living arrangement n = 1485; smoking status: n = 4981; job type: n = 13,737; working hours: n = 6462; perceived mental stress: n = 529; Sleep duration: n = 345; skipping breakfast: n = 1425).
  4. BMI body mass index, MET metabolic equivalent task.
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