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Table 3 Patient-reported outcome measures

From: The feasibility of a randomised control trial to assess physiotherapy against surgery for recurrent patellar instability

Follow up outcome

Baseline

3 months

6 months

12 months

NPIS (mean, SD) (0=lowest possible function, 0=best possible function)

40.6 (22.1)

47.1 (18.8)

25.2 (23.7)

28.9 (24.8)

KPDS (mean, SD) (0=lowest possible function, 100=best possible function)

62.1 (19.3)

61.8 (18.6)

73.1 (16.3)

79.4 (14.4)

EQ5D (mean, SD) (0=worst health, 1=perfect health)

0.65 (0.25)

0.61 (0.28)

0.79 (0.15)

0.82 (0.82)

Global assessment of change (n, %)

Substantially Better

-

1 (5)

6 (32)

8 (42)

Moderately Better

-

6 (32)

2 (11)

5 (26)

No difference

-

6 (32)

4 (21)

3 (16)

Moderately worse

-

1 (5)

0 (0)

2 (11)

Substantially worse

-

1 (5)

0 (0)

0 (0)

Satisfaction with treatment (n, %)

Extremely Satisfied

-

2 (11)

7 (37)

8 (42)

Very Satisfied

-

4 (21)

2 (11)

3 (16)

Somewhat Satisfied

-

5 (26)

0 (0)

3 (16)

Neither satisfied nor dissatisfied

-

2 (11)

2 (11)

3 (16)

Somewhat Dissatisfied

-

1 (5)

1 (5)

1 (5)

Very Dissatisfied

-

1 (5)

0 (0)

0 (0)

Extremely Dissatisfied

-

0 (0)

0 (0)

0 (0)