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Table 1 Summary of age, breed, biopsy source, Havemeyer grades and sub-grades of left laryngeal function, and myopathy histological score of the left CAD muscles from the 22 horses in the study

From: Correlation of the Havemeyer endoscopic laryngeal grading system with histopathological changes in equine Cricoarytenoideus dorsalismuscles

Horse number

Age (years)

Breed

Biopsy obtained

Havemeyer grade and sub-grade of left laryngeal function

Myopathy histological score left CAD muscle

Horse 1

11

TBx

P.M.

I

10.5

Horse 2

29

Pony

P.M.

I

10.5

Horse 3

1

TB

P.M.

I

8

Horse 4

6

TB

P.M.

II.1

10

Horse 5

7

TB

P.M.

II.1

8.5

Horse 6

7

FR

P.M.

II.1

16

Horse 7

13

TBx

P.M.

II.1

16.5

Horse 8

15

TB

P.M.

II.2

8

Horse 9

15

TBx

P.M.

II.2

10.5

Horse 10

2

WB

P.M.

II.2

9

Horse 11

7

WB

P.M.

III.1

11.5

Horse 12

17

TBx

P.M.

III.1

14

Horse 13

6

TB

P.M.

III.1

10.5

Horse 14

2

TB

P.M.

III.1

8.5

Horse 15

6

TB

Surgery

III.1

18

Horse 16

14

TB

P.M.

III.2

24.5

Horse 17

10

WB

P.M.

III.2

23.5

Horse 18

9

TBx

Surgery

III.2

14.5

Horse 19

7

TB

Surgery

III.3

23.5

Horse 20

8

TB

Surgery

III.3

21.5

Horse 21

5

TB

Surgery

IV

24

Horse 22

4

TBx

Surgery

IV

22.5

  1. TB = Thoroughbred; TBx = Thoroughbred cross; FR = Friesian; WB = Warmblood; P.M. = post-mortem examination; CAD = cricoarytenoideus dorsalis.