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Table 4 Adjusted hazard ratios (aHR) and 95% confidence intervals (CI) for comorbid conditions, individually, on modeled transition states, over the full follow-up period, by race

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

Strata

Type of transition

Obesity (vs no obesity)1

DM (vs no DM)1

CVD (vs no CVD)1

n (vs n) for transitions

aHR (95% CI)

White

Development of rHOA

 No rHOA/symptoms (A) to rHOA (B)

45 (vs 88)

18 (vs 115)

46 (vs 87)

0.75 (0.51, 1.11)

0.93 (0.48, 1.80)

1.49 (0.99, 2.24)

 Symptoms only (C) to sxHOA (D)

31 (vs 22)

12 (vs 41)

33 (vs 20)

1.48 (0.89, 2.44)

1.16 (0.61, 2.23)

1.02 (0.58, 1.77)

Development of symptoms

 No rHOA/symptoms (A) to symptoms only (C)

107 (vs 107)

46 (vs 168)

76 (vs 138)

1.46 (1.06, 2.00)

1.20 (0.75, 1.90)

1.31 (0.91, 1.89)

 rHOA (B) to sxHOA (D)

65 (vs 72)

25 (vs 112)

57 (vs 80)

0.88 (0.65, 1.54)

0.94 (0.47, 1.87)

1.36 (0.84, 2.21)

Resolution of symptoms

 Symptoms only (C) to no rHOA/symptoms (A)

100 (vs 99)

38 (vs 161)

69 (vs 130)

1.03 (0.75, 1.43)

0.68 (0.40, 1.17)

0.58 (0.39, 0.85)

 sxHOA (D) to rHOA (B)

73 (vs 59)

29 (vs 103)

55 (vs 77)

0.87 (0.57, 1.38)

0.58 (0.31, 1.06)

0.87 (0.54, 1.39)

Black

Development of rHOA

 No rHOA/symptoms (A) to rHOA (B)

37 (vs 28)

21 (vs 44)

23 (vs 42)

1.11 (0.69, 1.78)

1.10 (0.59, 2.06)

1.17 (0.69, 1.97)

 Symptoms only (C) to sxHOA (D)

7 (vs 5)

6 (vs 6)

8 (vs 4)

1.09 (0.32, 3.71)

3.57 (1.10, 11.7)

1.22 (0.36, 4.04)

Development of symptoms

 No rHOA/symptoms (A) to symptoms only (C)

49 (vs 26)

18 (vs 57)

32 (vs 43)

1.00 (0.59, 1.72)

0.79 (0.40, 1.57)

1.19 (0.66, 2.17)

 rHOA (B) to sxHOA (D)

22 (vs 13)

14 (vs 21)

14 (vs 21)

0.69 (0.32, 1.46)

2.09 (0.97, 4.54)

0.63 (0.27, 1.49)

Resolution of symptoms

 Symptoms only (C) to no rHOA/symptoms (A)

64 (vs 38)

29 (vs 73)

38 (vs 64)

0.66 (0.42, 1.04)

0.77 (0.46, 1.31)

0.70 (0.43, 1.13)

 sxHOA (D) to rHOA (B)

31 (vs 11)

9 (vs 33)

17 (vs 25)

0.69 (0.35, 1.39)

0.91 (0.37, 2.24)

0.52 (0.25, 1.09)

  1. 1Model includes effects for baseline values of birth year, study cohort, age, sex, and education and time-dependent values of obesity, DM, CVD, and hip injury
  2. Italics indicate statistical significance (i.e., the 95% CI excludes 1)