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Table 1 Weighted univariate statistics (to reflect the US population) for demographic characteristics of workers with osteoarthritis (OA) by self-reported severity category compared with employees without osteoarthritis

From: Impact of self-rated osteoarthritis severity in an employed population: Cross-sectional analysis of data from the national health and wellness survey

Variable

  

OA (n = 4,876)

  

Without OA (n = 34,896)

 

Mild (n = 2,192)

Moderate (n = 2,240)

Severe (n = 444)

n

Weighted percent (SE)

 

n

Weighted percent (SE)

n

Weighted percent (SE)

n

Weighted percent (SE)

  

Age range

        

   20-39 years

338

18.6 (0.9)

298

16.1 (0.9)

49

13.0 (1.8)

15,705

49.7 (0.3)

   40-64 years

1,339

65.0 (1.1)

1,447

68.8 (1.1)

312

74.0 (2.7)

16,926

46.6 (0.3)

   ≥ 65 years

515

16.42 (0.9)

495

15.1 (0.9)

83

13.0 (2.5)

2,265

3.7 (0.1)

Gender

        

   Male

1,120

49.2 (1.2)

1,008

44.1 (1.2)

190

41.7 (2.6)

18,460

54.4 (0.3)

   Female

1,072

50.8 (1.2)

1,232

56.0 (1.2)

254

58.4 (2.6)

16,436

45.6 (0.3)

Race/ethnicity

        

   White, non- Hispanic

1,765

75.2 (1.1)

1,757

73.1 (1.1)

338

69.7 (2.9)

24,279

66.2 (0.3)

   Black, non- Hispanic

174

8.8 (0.7)

223

10.6 (0.8)

63

16.5 (2.6)

4,143

12.1 (0.2)

   Hispanic white

68

5.8 (0.7)

80

6.6 (0.7)

18

6.6 (1.5)

1,959

8.6 (0.2)

   Hispanic black

3

0.3 (0.1)

7

0.6 (0.2)

2

0.6 (0.4)

148

0.7 (0.1)

   Other

182

9.9 (0.7)

173

9.2 (0.7)

23

6.6 (1.4)

4,367

12.5(0.2)

Education

        

   ≤ High school graduate

312

15.1 (0.9)

385

17.4 (0.9)

99

22.5 (2.2)

5,791

17.0 (0.2)

   > High school

1,880

84.9 (0.9)

1,855

82.7 (0.9)

345

77.5 (2.2)

29,104

83.0 (0.2)

Employment

        

   Full time

1,297

61.2 (1.1)

1,282

59.5 (1.2)

236

53.3 (2.8)

24,473

71.3 (0.3)

   Part time

557

23.3 (1.0)

586

24.8 (1.1)

106

24.3 (2.7)

6,442

17.9 (0.2)

   Self- employed

338

15.5 (0.9)

372

15.7 (0.9)

102

22.5 (2.1)

3,981

10.8 ± 0.2)

Income

        

   < $25,000

213

9.6 (0.7)

291

13.4 (0.8)

89

20.0 (2.1)

3,906

11.7 (0.2)

   $25,000 to $49,999

595

27.1 (1.0)

703

31.4 (1.1)

131

28.6 (2.3)

10,045

29.2 (0.3)

   $50,000 to $74,999

560

25.7 (1.0)

531

23.8 (1.0)

90

20.2 (2.0)

8,461

24.2 (0.2)

   ≥ $75,000

711

31.8 (1.1)

619

27.6 (1.0)

108

25.2 (2.7)

10,971

30.8 (0.3)

   Declined to answer

113

5.8 (0.6)

96

3.9 (0.4)

26

6.0 (1.2)

1,513

4.2 (0.1)

Health insurance

        

   Yes

1,955

88.2 (0.8)

1,951

86.0 (0.8)

386

86.0 (1.8)

28,731

81.3 (0.2)

   No

237

11.8 (0.8)

289

14.0 (0.8)

58

14.0 (1.8)

6,165

18.7 (0.2)

BMI (m2/kg)

        

   Underweight(< 18.5)

19

1.0 (0.3)

22

0.8 (0.2)

3

0.7 (0.4)

604

1.8 (0.1)

   Normal(18.5 to < 25)

527

25.0 (1.0)

431

20.2 (1.0)

74

18.7 (2.7)

11,273

32.6 (0.3)

   Overweight (25 to < 30)

726

32.9 (1.1)

722

31.9 (1.1)

130

27.9 (2.3)

11,761

33.6 (0.3)

   Obese (≥ 30)

890

39.8 (1.1)

1,027

45.3 (1.2)

229

51.0 (2.7)

10,635

30.2 (0.3)

   Declined to answer

30

1.3 (0.3)

38

1.7 (0.3)

8

1.7 (0.6)

623

1.8 (0.1)

Charlson Comorbidity Index (CCI)

        

   CCI of 0

1,437

67.2 (1.1)

1,296

59.1 (1.1)

213

47.7 (2.7)

28,294

82.1 (0.2)

   CCI of 1 or more

755

32.8 (1.1)

944

40.9 (1.1)

231

52.6 (2.7)

6,602

17.9 (0.2)