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Table 3 Patient Reported Outcome Measures, Hip Strength and Gait Parameters Measured Across 11 years. Generalised linear models controlling for age and comorbidities provided estimated marginal means (SE) and 95% ci at each time point

From: The natural history of greater trochanteric pain syndrome: an 11-year follow-up study

Outcome

Estimated Marginal Means (SE) and 95% CI by Group and Assessment Time Point. Controlling for age and FCIb

Baseline

Age=52.76, FCI=1.96

12-month follow-up

Age=54.2, FCI=1.73

11-year follow-up

Age=62.5yrs, FCI=2.18

GTPS

(n = 31)

ASC

(n = 23)

Difference

[95% CI]

GTPS

(n = 31)

ASC

(n = 21)

Difference

[95% CI]

GTPS

(n = 24)

ASC

(n = 20)

Difference

[95% CI]

AQoL (utility 0-1)

0.78 (0.02)

[0.74, 0.82]

0.89 (0.02)

[0.83, 0.93]

-0.10a

[-0.17, -0.03]

0.88 (0.02)

[0.84, 0.93]

0.85 (0.03)

[0.792, 0.90]

0.03

[-0.05, 0.11]

0.84 (0.02)

[0.80, 0.88]

0.87 (0.02)

[0.82, 0.91]

-0.23

[-0.08, 0.04]

mHHS (0-91)

67.8 (1.9)

[64.0, 71.6]

87.2 (2.2) [82.7, 91.7]

-19.4a

[-25.6, -13.1]

77.1 (1.6) [73.9, 80.2]

82.8 (1.9) [78.9, 86.6]

-5.7a

[-10.9, -0.47]

79.2 (2.3) [74.6, 83.8]

82.5 (2.5)

[77.5, 87.6]

-3.3

[-10.3, 3.7]

ODI (0-100)

20.2 (1.3) [17.5, 22.9)

3.5 (1.6) [0.3, 6.7)

16.7a

[12.3, 21.1)

12.5 (1.4) [9.6, 15.4)

4.7 (1.8)

[1.1, 8.3)

7.8a

[3.0, 12.7)

12.8 (1.8) [9.2, 16.4)

6.6 (2.0) [2.7, 10.6)

6.1a

[0.7, 11.6)

       

n = 20

n = 19

 

Strength

(Hip Abd (N/BMBMavg))

36.9 (4.1)

[28.9, 44.9]

45.1 (4.8)

[35.7, 54.4]

-8.2 (4.3)

[-16.6, 0.24]

40.7 (3.9)

[33.0, 48.4]

42.5 (4.6)

[33.4, 51.6]

-1.8 (4.2)

[-10.1, 6.5]

29.1 (6.0) [17.4, 40.8]

39.6 (6.5)

[26.8, 52.5]

--10.5

[--21.2, 0.2]

Strength

(Hip ER (N/BMBMavg))

17.1 (1.5)

[14.1, 20.2]

18.8 (1.8)

[15.2, 22.3]

--1.7 (1.6)

[-4.8, 1.5]

18.7 (1.5)

[15.8, 21.6]

19.2 (1.7)

[15.8, 22.6]

-0.53 (1.6)

[-3.6, 2.6]

18.9 (3.5)c [12.1, 25.6]

21.2 (3.5)

[14.2, 28.1]

-2.3 (2.7)

[-7.5, 2.9]

TUG

(sec)d

9.3 (0.40)d [8.5, 10.1]

8.6 (0.43)

[7.7, 9.5]

0.7 (0.63)

[-0.6, 1.9]

8.8 (0.42) [8.0, 9.7]

8.9 (0.52) [7.8, 9.9]

-0.09 (0.71)

[-1.5, 1.3]

6.6 (0.22) [6.2, 7.1]

6.0 (0.23) [5.5, 6.4]

0.7a

[0.01, 1.3]

Gait Speed

(m/s)d

1.1 (0.39)d

[1.0, 1.2]

1.3 (0.04)c

[1.3, 1.4]

-0.1a (0.03)

[-0.3, 0.0]

1.3 (0.03)c [1.2, 1.3]

1.3 (0.04)

[1.2, 1.3]

0.01

[-0.1, 0.1]

1.8 (0.06)

[1.6, 1.9]

1.9 (0.06)

[1.7, 2.0]

-0.1

[-0.3, 0.0]

  1. a Indicates a statistically significant finding
  2. AQoL Higher score indicates higher quality of life
  3. mHHS Higher score indicates higher function and less pain
  4. Strength: Higher score indicates higher strength
  5. Gait speed: Higher score in more desirable
  6. Time up and go: lower score is more desirable.
  7. b Baseline and 12-month data does not include those excluded from 11 year follow-up, but does include those lost to follow-up
  8. c One participant requested this examination be ceased due to hip pain. §: Baseline TUG: GTPS n = 27, Gait speed: GTPS, n = 26, ASC, n= 22. 12-month follow-up gait speed: GTPS n = 30.
  9. d Different instructions were inadvertently used at the 11-year follow-up than baseline.