Schmidt PE, Meredith P, Prytherch DR, et al. Impact of introducing an electronic physiological surveillance system on hospital mortality. BMJ Qual Saf 2015;24:176–7. The concluding statement in this letter (‘Finally, two of the authors of the letter by Shaw et al¹ appear to have undeclared conflicts of interest pertinent to their interest in our research.^{7 8}’) is unfounded and should have been omitted.