Table 1 Comparisons of characteristics between pneumoconiosis workers and community subjects.

Age group, years

 < 65

28

13.5

34

18.3

 65–74

101

48.6

92

49.5

 ≥ 75

79

38

60

32.3

Education, years

 0–3 years

44

21.2

78

41.9

 4–6 years

68

32.7

76

40.9

 > 6 years

96

46.2

32

17.2

Marital status

 Single/Divorced/Widowed

37

17.8

14

7.5

 Married/cohabitation

166

79.8

170

91.4

 Unknown

5

2.4

2

1.1

Employment

 Retired

175

84.1

169

90.9

 Employed

33

15.9

17

9.1

 History of diabetes

51

24.5

33

17.7

 History of hypertension or CVDs

112

53.8

102

54.8

 Current sleep medication user

9

4.3

5

2.7

 Family history of dementia

11

5.3

2

1.1

Smoking status

 Current smoker

39

18.8

22

11.8

 Former smoker

68

32.7

122

65.6

 Never smoker

101

48.6

42

22.6

Alcohol Drinking

 Current drinker

35

16.8

37

19.9

 Former drinker

31

14.9

63

33.9

 Never drinker

142

68.3

86

46.2

 Tea drinker

152

73.1

163

87.6

 Coffee drinker

68

32.7

47

25.3

Anxiety score of HADS

 Normal (0–7)

183

88

159

85.5

 Borderline abnormal (8–10)

18

8.7

15

8.1

 Abnormal (11–21)

7

3.4

10

5.4

 Missing

0

0

2

1.1

Depression score of HADS

 Normal (0–7)

165

79.3

158

84.9

 Borderline abnormal (8–10)

23

11.1

17

9.1

 Abnormal (11–21)

20

9.6

9

4.8

 Missing

0

0

2

1.1

Physical activity

 Low

40

19.2

32

17.2

 Moderate

107

51.4

106

57

 High

61

29.3

48

25.8

 Poor sleep quality

109

52.4

141

75.8

Age, years

72.9

8.0

71.3

7.8

Waist circumference, cm

89.5

10.1

86.2

9.1

Handgrip strength, kg

27.6

7.8

28.6

8.4