Demographics of the older horse
•Increase in geriatric horses presented to veterinary hospitals (4 to 6 fold, up 55%)
•NAHMS*-7.5% of horse population is ≥ 20 yrs
–75% between 20-29 years (old horse)
–25% ≥ 30 years (very old horse)
•Average age = 25 years (71 human years)
–1 horse year @ 2.85 human years
*NAHMS=National Animal Health Monitoring System, 1988, USDA