Table 2 Results of the comparison of the number of litters produced by sires categorised by their origin (imported versus national) and success in activities (sires with or without Studbook numbers). 95% confidence intervals are provided in parentheses
Comparison | Pooled mean difference | I2 | Fraction of breeds with significant difference | Breed with minimum mean difference | Breed with maximum mean difference | Pooled mean difference in top 10 breeds | I2 In top 10 breeds |
|---|---|---|---|---|---|---|---|
Dogs with SBN and without | 2.9 (2.5 to 3.3) | 95.5% (95.1 to 95.0%) | 140/165 | Nova Scotia Duck Tolling Retriever -1.8 (-3.3 to -0.4) | Boxer 13.9 (12.0 to 15.7) | 7.9 (5.8 to 10.1) | 96.4% (94.9 to 97.5%) |
Imports and national dogs | 1.4 (1.2 to 1.6) | 79.2% (76.3 to 81.7%) | 83/198 | Shetland Sheepdog -2.7 (-4.4 to -1.0) | Hungarian Vizsla 10.6 (6.7 to 14.5) | 4.0 (2.8 to 5.3) | 78.5% (60.8 to 88.2%) |
Imports with SBN and without | 2.0 (1.6 to 2.5) | 61.8% (54.3 to 68.1%) | 41/143 | Nova Scotia Duck Tolling Retriever -5.0 (-9.1 to -0.9) | West Highland White Terrier 22.8 (9.4 to 36.2) | 5.1 (1.0 to 9.2) | 79.2% (62.4 to 88.5%) |
Imports and national dogs with SBN | -0.9 (-1.3 to -0.4) | 71.0% (65.8 to 75.4%) | 29/147 | German Shepherd Dog -10.4 (-15.1 to -5.6) | Dachshund Miniature (Long-Haired) 6.1 (3.5 to 8.7) | Not significant (p = 0.5) | 81.1% (66.3 to 89.4%) |