Skip to main content

Table 1 Descriptive characteristics of JoCo OA participants with complete data (n = 3857)

From: Comorbid conditions and the transition among states of hip osteoarthritis and symptoms in a community-based study: a multi-state time-to-event model approach

 

Study visit (mean ± SD years from baseline)

Baseline

n = 3857

1st follow-up

n = 2300

(6.0 ± 1.2 years)

2nd follow-up

n = 1336

(12.2 ± 1.5 years)

3rd follow-up

n = 454

(18.4 ± 1.5 years)

Characteristics†

n

%

n

%

n

%

n

%

Age (years, mean ± SD))

62.2

± 9.8

67.0

± 9.2

71.1

± 7.8

74.9

± 6.7

Original cohort (vs enrichment)

2732

70.8

1617

70.3

960

71.9

454

100

Men

1495

38.8

808

35.1

461

34.5

189

41.6

African American

1269

32.9

710

30.9

403

30.2

114

25.1

< 12 years education

1412

36.6

701

30.5

298

22.3

68

15.0

Hip injury

245

6.4

200

8.7

125

9.4

52

11.5

Obesity (BMI ≥ 30 kg/m2)

1543

40.0

1061

46.1

663

49.6

222

48.9

Prevalent DM

532

13.8

457

19.9

340

25.4

127

28.0

Incident DM

  

196

8.5

114

8.5

43

9.5

Prevalent CVD

855

22.2

734

31.9

557

41.7

217

47.8

Incident CVD

  

302

13.1

159

11.9

50

11.0

Hip symptoms (max)$

 None

2403

62.3

1512

65.7

928

69.5

300

66.1

 Mild

405

10.5

251

10.9

137

10.3

46

10.1

 Moderate

645

16.7

343

14.9

181

13.5

44

9.7

 Severe

375

9.7

194

8.4

90

6.7

64

14.1

State definitions

 No rHOA or symptoms

1743

45.2

947

41.2

531

39.7

160

35.2

 Asymptomatic rHOA

736

19.1

564

24.5

421

31.5

154

33.9

 Hip symptoms only

967

25.1

505

22.0

201

15.0

71

15.6

 SxHOA

411

10.7

284

12.3

183

13.7

69

15.2

  1. BMI body mass index in kg/m2, measured and calculated from height and weight, DM diabetes mellitus, and CVD cardiovascular disease, are self-reported (see “Main effects: comorbid conditions” for additional detail. OA osteoarthritis, rHOA radiographic hip OA, sxHOA symptomatic hip OA
  2. n(%) unless otherwise noted
  3. $n = 29 participants are missing at baseline (this was a separate question than the ANY symptoms question used for the state definitions). The maximum severity for the person, considering both hips, is shown