Priorities for Research into the Impact of Canine Surgical Sterilisation Programmes for Free-Roaming Dogs: An International Priority Setting Partnership

SIMPLE SUMMARY: Surgical sterilisation is a component of free-roaming dog population management programmes worldwide. However, evidence of the population-level impacts of sterilisation are rarely reported in peer-reviewed literature. Using a priority setting partnership process, we identified the most important unanswered questions concerning these impacts from the perspective of those working with free-roaming dogs. We found that there were many uncertainties surrounding the impacts of such programmes, and how they can be achieved. The top 10 priorities were related to changes in dog population dynamics; risks to human health; human perception and behaviour towards dogs; and logistics related to implementation in the field. Addressing these priorities will enable a more comprehensive understanding of if, how, and why canine surgical sterilisation programmes impact on free-roaming dog populations. ABSTRACT: Surgical sterilisation is a core activity of free-roaming dog population management (DPM) programmes globally. However, there is limited published evidence on its impact at the population level. To support evidence-based decision making in this field, it is important that research conducted is relevant to those involved in working with free-roaming dogs and implementing such programmes. The aim of this study was to adapt the James Lind Alliance (JLA) user involvement approach to systematically identify the top 10 research priorities regarding the impact of canine sterilisation. International stakeholders with experience working in DPM were asked in an online survey what unanswered questions they had regarding the impact of sterilisation programmes. Thematic analysis of survey responses was used to develop a long list of collated indicative research questions (CIRQs). A literature review was performed to identify questions that were ‘true uncertainties’ (had not been answered by evidence review). These questions were reduced to a shortlist via an online interim prioritisation survey, and a Delphi consensus process determined the top 10 priorities. The top 10 questions related to dog population size and turnover, dog bite incidents, rabies control, implementation in the field and human behaviour change. These priorities were identified and shaped by people with direct experience of canine surgical sterilisation programmes, and as such are an essential resource for directing future funding and research. Addressing these priorities will generate evidence that is directly applicable to policy makers and practitioners who make decisions regarding the management of free-roaming dogs (FRDs) worldwide.