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Table 1 Depicting breed-specific data regarding age of seizure onset

From: International Veterinary Epilepsy Task Force’s current understanding of idiopathic epilepsy of genetic or suspected genetic origin in purebred dogs

Breed Age at seizure onset Reference
Australian Shepherd 2.5 years (median) Weissl et al. 2012 [9]
Belgian Shepherd 3.3 years (mean) Berendt et al. 2008 [23]
  3.3 years (mean) Seppala et al. 2012 [34]
Bernese Mountain dog 26.5 months (mean) Kathmann et al. 1999 [45]
Border Collie 2.5 years (median) Hülsmeyer et al. 2010 [8]
Border Terrier 3.2 years (mean) Kloene et al. 2008 [56]
Dalmatian 2.9 years (median), 3.2 years (mean) Licht et al. 2002 [65]
English Springer Spaniel 3 years (median) Patterson et al. 2005 [74]
Finnish Spitz 3 years (median) Viitmaa et al. 2013 [82]
Golden Retriever 27.5 months (mean) Srenk et al. 1994 [84]
  24.9 months (mean) Lengweiler&Jaggy 1999 [86]
Hungarian (Magyar) Vizsla 3 years (median) Patterson et al. 2003 [87]
Irish Wolfhound by the age of 3 years in 73 % of dogs Casal et al. 2006 [24]
Italian Spinone 38 months (mean) De Risio et al. 2015 [93]
Labrador Retriever 30.6 months (mean) Jaggy et al. 1998 [95]
  34 months for males and 28 months for females (mean) Heynold et al. 1997 [94]
  by the age of 4 years in 76 % of dogs Berendt et al. 2002 [26]
Lagotto Romganolo 6.3 weeks (mean) Jokinen et al. 2007 [105]
Petit Basset Griffon Vendeen 2 years (median) Gulløv et al. 2011 [25]
Shetland Sheepdog predominantly between 1 and 1.5 years Morita et al. 2002 [109]
Standard Poodle 3.7 years (median) Licht et al. 2007 [113]
  2.4 years (median), 2.8 years (mean) Licht et al. 2002 [65]