Swedish Experiences From 60 Years of Screening and Breeding Programs for Hip Dysplasia-Research, Success, and Challenges.

The effect of hip status at screening was highly significant ( P < 0.001) for both life and veterinary claims related to HD in all five breeds with an increased hazard ratio (HR) for deteriorating hip status being graded 2–4 [up to year 2000 or later D–E (moderate–severe HD)] as compared with 0 and 1 [up to year 2000 or later A–C (normal hip joints–mild dysplasia)].

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