Methods used to estimate the size of the owned cat and dog population: a systematic review

BMC Veterinary Research

Table 1 Outcome of author contact and critical appraisal (CA) of 31 studies that satisfied the initial inclusion criteria in a systematic review examining methods to estimate owned dog and cat populations

Literature identified¹	Clear methods²	Result of attempt to contact author³	Include after critical appraisal
Literature Searches
Acosta-Jamett et al. [33]	Yes		No
Agostini et al. [34]	No	No author found
Agostini et al. [35]	Yes		No
AVMA[36]	Yes		Yes
Brooks [37]	No	No author found
Butler and Bingham[19]	Yes		Yes
De Balogh et al. [38]	Yes		No
Degregorio et al. [39]	No	No author found
Dias et al. [40]	No	Author responded	No
Egenvall et al. [41]	No	No author found
Gregory and Reid [42]	No	No author found
Griffiths and Brenner [43]	Yes		No
Ibarra et al. [44]	Yes		No
Kitala et al. [45]	Yes		No
Larrieu et al. [46]	No	No author found
Lengerich et al.[47]	Yes		Yes
Martin et al. [48]	No	No author found
Morales et al. [49]	No	No author found
Murray et al.[3]	No	Author responded	Yes
Matter [21]	No	No author found
Okoh [50]	No	No author found
Ortega-Pacheco et al.[51]	Yes		Yes
Patronek et al. [52]	No	No author found
Rangel et al. [53]	No	No author found
Rautenbach et al. [54]	No	No author found
Serafini et al. [4]	No	No author found
Slater et al.[5]	Yes		Yes
Subbaraj et al. [55]	Yes		No
Google Searches
AVMA[1]	Yes		Yes
Pet Plan [56]	No	No author found
PFMA [26]	No	Author responded	No

1. Studies in bold were included in the final review.
2. Methods were judged to be clear (‘yes’) when the methods for calculating the population size estimate reported in the study were transparent and repeatable.
3. Where the methods were clear enough, no attempt was made to contact the author.

ISSN: 1746-6148