OFA Tables for Hips

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OFA offers voluntary databases on radiographic evaluations. The data presented in these two tables are published in "The use of health databases and selective breeding", 4th edition, 2003, OFA 2300 E. Nifong Blvd, Columbia, MO 65201.

Based on 152,589 progeny in the OFA Hip database with known sire and dam hip scores.

  Excellent Good Fair Dysplastic
Table 1. Mating Probability
Excellent T = 5,8325
N = 5,630 (96.5%)
D = 205 (3.5%)
T = 16,315
N = 15,481 (94.9%)
D = 834 (5.1%)
T = 1,931
N = 1,782 (92.3%)
D = 149 (7.7%)
T= 362
N = 308 (85.1%)
D = 54 (14.9%)
Good T = 17,281
N = 16,291 (94.3%)
D = 990 (5.7%)
T = 69,041
N= 63,346 (91.8%)
D = 5,695 (8.2%)
T = 12,008
N = 10,566 (88.0%)
D = 1,442 (12.0%)
D = 301 (16.5%)
T = 1,826
N = 1,525 (83.5%)
Fair T = 3,146
N = 2,888 (91.8%)
D = 258 (8.2%)
T = 15,475
N = 13,581 (87.8%)
D = 1,894 (12.2%)
T = 3,957
N = 3,311 (83.7%)
D = 646 (16.3%)
T = 632
N = 456 (72.2%)
D = 176 (27.8%)
Dysplastic T = 595
N = 528 (88.7%)
D =67 (11.3%)
T = 2,941
N = 2,394 (81.4%)
D = 547 (18.6%)
T = 935
N = 698 (74.7%)
D = 237 (25.3%)
T = 309
N = 197 (63.8%)
D = 112 (36.2%)
  <6Mths. 7-12 Mths. 13-18Mths. Total
Reality of Normal Prelims by Age
Number 278 714 808 1,800
No Change 249 670 769 1,688
Norm to Dys. 25 43 31 99
Norm to Borderline 4 1 8 13
Reliabilty 89.6% 93.8% 95.2% 93.8%
Cl Upper 92.9% 95.5% 96.5% 94.8%
Cl Lower 85.4% 91.6% 93.5% 92.6%

About the Author

Carmen L Battaglia holds a Ph.D. and Masters Degree from Florida State University. As an AKC judge, researcher and writer, he has been a leader in promotion of breeding better dogs and has written many articles and several books.Dr. Battaglia is also a popular TV and radio talk show speaker. His seminars on breeding dogs, selecting sires and choosing puppies have been well received by the breed clubs all over the country.