Skip to main content

Table 2 Sociodemographic and osteoarthritis characteristics by absenteeism among respondents with osteoarthritis in Japan, 2014

From: Work impairment, osteoarthritis, and health-related quality of life among employees in Japan

  

Absenteeisma

 

Total (N = 233)

Absenteeism (N = 25)

No Absenteeism (N = 200)

p-value*

Female (%, N)

43.8%

102

52.0%

13

43.5%

87

0.420

Age (Mean, SD)

54.2

12.2

46.1

15.3

55.4

11.3

< 0.001

Married or living with partner (%, N)

66.5%

155

64.0%

16

68.0%

136

0.687

Annual household income (%, N)

      

0.204

  < ¥3million

14.2%

33

8.0%

2

15.0%

30

 

 ¥3million to <¥5million

20.6%

48

16.0%

4

21.0%

42

 

 ¥5million to <¥9million

36.5%

85

32.0%

8

37.5%

75

 

 ¥9million or more

21.0%

49

40.0%

10

18.0%

36

 

 Decline to answer

7.7%

18

4.0%

1

8.5%

17

 

Education (%, N)

      

0.584

 Junior/High School

31.1%

70

24.0%

6

32.0%

64

 

 2-year college

14.2%

32

20.0%

5

13.5%

27

 

 4-year college

50.2%

113

48.0%

12

50.5%

101

 

 Graduate school

4.4%

10

8.0%

2

4.0%

8

 

CCI (Mean, SD)

1.1

4.8

3.1

8.0

0.7

3.3

0.006

BMI categories (%, N)

      

0.557

 Underweight (< 18.5)

7.7%

18

8.0%

2

8.0%

16

 

 Normal (18.5–24.9)

61.4%

143

68.0%

17

60.5%

121

 

 Overweight (25.0–29.9)

22.7%

53

12.0%

3

23.5%

47

 

 Obese (30.0+)

6.9%

16

12.0%

3

6.5%

13

 

 Decline to answer

1.3%

3

0.0%

0

1.5%

3

 

Smoking status (%, N)

      

0.055

 Current smoker

26.2%

61

44.0%

11

23.0%

46

 

 Former smoker

34.3%

80

20.0%

5

37.0%

74

 

 Never smoker

39.5%

92

36.0%

9

40.0%

80

 

Drinks alcohol (%, N)

75.5%

176

84.0%

21

75.0%

150

0.421

Exercise (%, N)

51.1%

119

56.0%

14

49.0%

98

0.509

Length of arthritis diagnosis, yearsa (Mean, SD)

8.4

11.3

12.0

16.2

7.9

10.5

0.100

Number of joints affected (Mean, SD)

2.0

1.9

1.8

2.2

1.9

1.7

0.712

Site affected by arthritis

 Ankles

15.9%

37

20.0%

5

14.5%

29

0.551

 Elbows

13.3%

31

12.0%

3

13.5%

27

1.000

 Feet

14.6%

34

20.0%

5

14.0%

28

0.382

 Fingers/Hands

26.2%

59

20.0%

5

27.0%

54

0.453

 Hips

14.2%

33

24.0%

6

12.5%

25

0.126

 Knees

51.9%

121

32.0%

8

54.0%

108

0.055

 Neck

10.3%

24

8.0%

2

10.5%

21

1.000

 Shoulders

14.2%

33

8.0%

2

15.0%

30

0.544

 Spine

3.0%

7

4.0%

1

2.5%

5

0.511

 Wrists

16.7%

39

20.0%

5

16.5%

33

0.584

 Other

6.0%

14

8.0%

2

5.5%

11

0.643

Severity of arthritis (%, N)

      

0.356

 Mild

51.5%

120

56.0%

14

52.0%

104

 

 Moderate

38.6%

90

28.0%

7

39.0%

78

 

 Severe

9.9%

23

16.0%

4

9.0%

18

 

Frequency of problems with arthritis (%, N)

      

0.032

 Daily

33.0%

77

24.0%

6

33.0%

66

 

 4–6 times a week

7.7%

18

16.0%

4

6.5%

13

 

 2–3 times a week

12.9%

30

32.0%

8

11.0%

22

 

 Once a week

2.6%

6

0.0%

0

3.0%

6

 

 2–3 times a month

14.2%

33

12.0%

3

15.0%

30

 

 Once a month or less often

29.6%

69

16.0%

4

31.5%

63

 

Use a prescription for OA (%, N)

32.6%

76

44.0%

11

31.0%

62

0.015

  1. Note: BMI body mass index, CCI Charlson Comorbidity Index, OA osteoarthritis
  2. *Differences between none vs. any absenteeism were performed using t-tests for continuous variables and chi-square or Fisher exact (cells < 5) tests for categorical variables
  3. aData for absenteeism were missing for eight respondents. Data for length of diagnosis were missing for an additional 12 respondents overall
Back to article page

Health and Quality of Life Outcomes

ISSN: 1477-7525

Contact us