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Table 3 Summary statistics for dogs with a syrinx extending to the SDH

From: MRI characteristics for “phantom” scratching in canine syringomyelia

Spinal segment Scratchers (19 dogs) Non-Scratchers (18 dogs) Chi-square [p-value] Fisher’s Exact
p-value
% SDH SM # SDH # SM % SDH SM # SDH SM # SM
C1 0 0 0 0 0 0 n/a n/a
C2 0 0 0 0 0 0 n/a n/a
C3 89.5 17 19 11.1 2 18 19.7 [<0.001] <0.001
C4 83.3 15 18 14.3 2 14 12.4 [<0.001] <0.001
C5 64.7 11 17 0 0 12 9.9 [0.002] <0.001
C6 62.5 5 8 0 0 5 2.8 [0.095] 0.044
C7 40 2 5 0 0 1   0.667
C8 0 0 0 0 0 0 n/a n/a
  1. % SDH SM – proportion of dogs that had a syrinx which extended to superficial dorsal horn
  2. # SDH SM - number of dogs that had a syrinx which extended to superficial dorsal horn
  3. #SM - number of dogs that had a syrinx at that spinal cord segment. Bold font - p values indicates a significant result (p < 0.05)