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Table 2 Evolution of Clinical Metrology instruments, by group and moment. CBPI – Canine Brief Pain Inventory; COI – Canine Orthopedic Index; HVAS – Hudson Visual Analogue Scale; LOAD – Liverpool Osteoarthritis in Dogs; PIS – Pain Interference Score; PSS – Pain Severity Score; QOL – Quality of Life. * indicates significance when comparing groups at each follow-up moment

From: Platelet-rich plasma therapy in dogs with bilateral hip osteoarthritis

Clinical Metrology Instrument

Group

T0

p

+15d

p

+30d

p

+60d

p

+90d

p

+120d

p

+150d

p

+180d

p

score

SD

score

SD

score

SD

score

SD

score

SD

score

SD

score

SD

score

SD

HVAS (0–10)

CG

4.1

1.0

0.83

4.4

0.8

0.12

4.2

1.1

0.05

4.3

0.9

0.03*

4.4

1.0

0.02*

4.6

1.0

0.01*

4.8

0.8

0.02*

4.3

1.0

0.92

PG

4.4

1.5

4.4

1.5

4.1

1.3

4.3

1.4

4.0

1.6

4.0

1.7

4.1

2.0

3.9

1.4

CBPI

PSS (0–10)

CG

4.7

1.8

0.25

5.3

1.5

0.04*

4.4

2.1

0.01*

4.5

1.6

0.03*

4.8

1.8

0.01*

4.7

2.0

0.02*

5.2

1.3

0.04*

4.8

4.8

0.02*

PG

6.1

1.5

4.8

2.1

4.2

2.2

4.3

2.1

4.2

2.5

4.5

2.5

4.6

2.6

4.3

1.8

PIS (0–10)

CG

5.0

1.8

0.13

5.3

1.1

0.08

4.7

2.2

0.01*

4.9

1.9

0.03*

4.8

1.8

0.01*

4.7

2.0

0.01*

5.2

1.3

0.02

4.7

1.8

0.34

PG

6.6

1.6

5.1

2.2

4.4

2.4

4.2

2.2

4.1

2.6

4.8

2.7

4.7

2.6

4.8

2.2

LOAD (0–52)

CG

19.5

6.8

0.89

23.3

5.8

0.22

26.0

8.9

0.02*

23.6

7.9

0.02*

26.2

8.7

0.02*

25.1

8.7

0.03*

22.9

8.7

0.52

22.9

8.7

0.38

PG

24.6

8.7

22.7

8.6

22.8

8.9

22.9

10.7

23.2

11.1

23.1

10.7

23.7

10.2

20.8

8.6

COI

Stiffness (0–16)

CG

5.8

1.9

0.22

6.9

1.9

0.04*

7.8

3.3

0.02*

7.2

2.2

0.01*

6.9

2.5

0.14

6.9

2.5

0.07

6.9

2.5

0.27

6.9

2.5

0.72

PG

8.1

2.1

6.6

2.8

6.7

2.9

6.6

3.5

6.8

3.2

6.7

3.2

7.2

3.4

7.0

2.5

Function (0–16)

CG

7.0

2.5

0.5

8.0

3.1

0.04*

8.8

3.4

0.03*

7.5

2.5

0.01*

7.8

7.6

0.02*

7.9

3.4

0.03*

7.6

3.4

0.27

7.6

3.4

0.21

PG

8.7

2.2

7.5

3.5

7.1

3.3

7.3

3.3

7.0

4.0

7.3

4.1

7.4

3.8

6.4

3.5

Gait (0–20)

CG

8.9

2.7

0.16

10.1

3.4

0.01*

11.2

2.9

0.03*

10.8

3.1

0.04*

10.3

3.6

0.04*

10.3

3.6

0.02*

10.2

3.6

0.04*

9.3

3.6

0.89

PG

11.3

2.7

9.2

3.7

9.8

3.6

9.9

3.8

9.6

3.4

9.3

3.8

9.3

3.6

9.8

3.5

QOL (0–12)

CG

5.6

1.3

0.26

6.3

1.8

0.02*

6.3

2.3

0.28

6.8

2.0

0.02*

6.7

2.1

0.02*

5.8

2.1

0.62

5.8

2.1

0.62

5.8

2.1

0.47

PG

7.5

1.9

6.1

2.0

6.2

1.9

6.1

1.9

5.8

2.6

6.2

2.5

7.0

2.7

6.4

2.1

Overall (0–52)

CG

27.3

7.8

0.16

31.3

9.87

0.01*

34.2

11.2

0.01*

31.2

8.9

0.04*

30.9

11.0

0.04*

30.9

11.0

0.04*

31.8

11.0

0.89

29.5

11.0

0.78

PG

35.6

8.1

29.4

11.5

29.8

10.9

30.1

12.1

29.5

12.9

29.5

13.2

29.5

12.8

29.7

10.5