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Table 2 Number of dogs with achieved treatment effect recorded as change in pain signs of canine hip dysplasia (CHD) assessed by the owner, related to the two stratification factors bodyweight and degree of CHD. Distribution of dogs according to the non-design stratum gender is also shown.

From: Stratification, Blinding and Placebo Effect in a Randomized, Double Blind Placebo-controlled Clinical Trial of Gold Bead Implantation in Dogs with Hip Dysplasia

  

Pain signs of canine hip dysplasia

 

Factor

Design strata

Complete recovery

Large improvement

Mild improvement

No change in signs

Mild aggravation

Large aggravation

Total number of dogs

Body-weight

≤20.0 kg

0

3

1

1

0

1

6

 

20.1–34.9 kg

5

14

5

9

2

3

38

 

≥35.0 kg

6

11

7

9

1

0

34

Canine hip dysplasia

Mild/moderate

6

14

7

11

2

0

40

 

Severe

5

14

6

8

1

4

38

 

Non-design stratum

       

Gender

Female

5

15

10

12

2

2

46

 

Male

6

13

3

7

1

2

32