Exceptional longevity and potential determinants of successful ageing in a cohort of 39 Labrador retrievers: results of a prospective longitudinal study

Table 1 Evidence used in consensus for ‘Typical’ Labrador retriever lifespan based on reported ages at death with reference numbers in square brackets

Reference material	Country	#Dogs	Median lifespan, years
Assistance dog database^a	US	498	12.0
Lawler et al. [2]	US	48	‘Restricted’ group: 13.0
Kealy et al. [19]	US	48	‘Control’ group: 11.2
Adams et al. [8]	UK	574	12.25
O’ Neill et al. [12]	UK	418	12.5
Michell [6]	UK	328	12.6
Proschowsky et al. [7]	Denmark	199	10.5
Typical lifespan of Labrador retrievers^b			12.0

^aCanine companions for independence (Santa Rosa, CA, USA)
^bConsensus age provided by Jan Bellows, DVM, DAVDC, DABVP, FAVD; Carmen M. H. Colitz, DVM, Ph.D., DACVO, Donald Ingram, Ph.D.; Stanley L. Marks, BVSc, Ph.D., DACVIM, DACVN; Sherry L. Sanderson, DVM, Ph.D., DACVIM, DACVN; Julia Tomlinson, BVSc, Ph.D., DACVS, CCRP, CVSM

ISSN: 1751-0147