LONGEVITY IN THE AUSTRALIAN SHEPHERD
Dr John Armstrong
Kaplan-Meier survival curves comparing Australian Shepherds born before 1980 (closed circles), median lifespan 156 months, with those born more recently (open circles), median lifespan 142 months. N = 619.
For a description of the methods and possible interpretations, see Longevity in the Standard Poodle. All analyses were performed using GraphPad Prism 3.02, GraphPad Software, San Diego.