In 2003, a long - term study of a Trap - Neuter - Return program noted that 83 percent of the cats present at the end of the observation period had been there for more than six years. (alleycat.org)
A long - term study (published in the Journal of the American Veterinary Medical Association in 2003) of a Trap - Neuter - Return program noted that 83 % of the cats present at the end of the observation period had been there for more than six years — meaning that the cats» lifespans were comparable to the mean lifespan of 7.1 years for pet cats. (sosohio.org)
A long - term study published in the Journal of the American Veterinary Medical Association of a TNR program noted that 83 % of the cats present at the end of the observation period had been there for more than six years — showing that the cats were living about the same amount of time as pet cats, who have an average lifespan of 7.1 years.5 (alleycat.org)