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Estimating the life expectancy of companion dogs in Japan using pet cemetery data

The life expectancy provides valuable information about population health. The life expectancies were evaluated in 12,039 dogs which were buried or cremated during January 2012 to March 2015. The data of dogs were collected at the eight animal cemeteries in Tokyo. The overall life expectancy of dogs...

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Autores principales: INOUE, Mai, KWAN, Nigel C. L., SUGIURA, Katsuaki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Japanese Society of Veterinary Science 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6068313/
https://www.ncbi.nlm.nih.gov/pubmed/29798968
http://dx.doi.org/10.1292/jvms.17-0384
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author INOUE, Mai
KWAN, Nigel C. L.
SUGIURA, Katsuaki
author_facet INOUE, Mai
KWAN, Nigel C. L.
SUGIURA, Katsuaki
author_sort INOUE, Mai
collection PubMed
description The life expectancy provides valuable information about population health. The life expectancies were evaluated in 12,039 dogs which were buried or cremated during January 2012 to March 2015. The data of dogs were collected at the eight animal cemeteries in Tokyo. The overall life expectancy of dogs was 13.7 (95% confidence interval (CI): 13.7–13.8) years. The probability of death was high in the first year of life, lowest in the fourth year, and increased exponentially after four years of age like Gompertz curve in semilog graph. The life expectancy of companion dogs in Tokyo has increased 1.67 fold from 8.6 years to 13.7 years over the past three decades. Canine crossbreed life expectancy (15.1 years, 95% CI 14.9–15.3) was significantly greater than pure breed life expectancy (13.6 years, 95%CI 13.5–13.7, P-value <0.001). The life expectancy for male and for female dogs were 13.6 (95% CI: 13.5–13.7) and 13.5 (95% CI: 13.4–13.6) years, respectively, with no significant difference (P=0.097). In terms of the median age of death and life expectancy for major breeds, Shiba had the highest median age of death (15.7 years), life expectancy (15.5 years) and French Bulldog had the lowest median age of death (10.2 years), life expectancy (10.2 years). When considering life expectancy alone, these results suggest that the health of companion dogs in Japan has significantly improved over the past 30 years.
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spelling pubmed-60683132018-08-06 Estimating the life expectancy of companion dogs in Japan using pet cemetery data INOUE, Mai KWAN, Nigel C. L. SUGIURA, Katsuaki J Vet Med Sci Internal Medicine The life expectancy provides valuable information about population health. The life expectancies were evaluated in 12,039 dogs which were buried or cremated during January 2012 to March 2015. The data of dogs were collected at the eight animal cemeteries in Tokyo. The overall life expectancy of dogs was 13.7 (95% confidence interval (CI): 13.7–13.8) years. The probability of death was high in the first year of life, lowest in the fourth year, and increased exponentially after four years of age like Gompertz curve in semilog graph. The life expectancy of companion dogs in Tokyo has increased 1.67 fold from 8.6 years to 13.7 years over the past three decades. Canine crossbreed life expectancy (15.1 years, 95% CI 14.9–15.3) was significantly greater than pure breed life expectancy (13.6 years, 95%CI 13.5–13.7, P-value <0.001). The life expectancy for male and for female dogs were 13.6 (95% CI: 13.5–13.7) and 13.5 (95% CI: 13.4–13.6) years, respectively, with no significant difference (P=0.097). In terms of the median age of death and life expectancy for major breeds, Shiba had the highest median age of death (15.7 years), life expectancy (15.5 years) and French Bulldog had the lowest median age of death (10.2 years), life expectancy (10.2 years). When considering life expectancy alone, these results suggest that the health of companion dogs in Japan has significantly improved over the past 30 years. The Japanese Society of Veterinary Science 2018-05-24 2018-07 /pmc/articles/PMC6068313/ /pubmed/29798968 http://dx.doi.org/10.1292/jvms.17-0384 Text en ©2018 The Japanese Society of Veterinary Science This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0: https://creativecommons.org/licenses/by-nc-nd/4.0/)
spellingShingle Internal Medicine
INOUE, Mai
KWAN, Nigel C. L.
SUGIURA, Katsuaki
Estimating the life expectancy of companion dogs in Japan using pet cemetery data
title Estimating the life expectancy of companion dogs in Japan using pet cemetery data
title_full Estimating the life expectancy of companion dogs in Japan using pet cemetery data
title_fullStr Estimating the life expectancy of companion dogs in Japan using pet cemetery data
title_full_unstemmed Estimating the life expectancy of companion dogs in Japan using pet cemetery data
title_short Estimating the life expectancy of companion dogs in Japan using pet cemetery data
title_sort estimating the life expectancy of companion dogs in japan using pet cemetery data
topic Internal Medicine
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6068313/
https://www.ncbi.nlm.nih.gov/pubmed/29798968
http://dx.doi.org/10.1292/jvms.17-0384
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