Statistical characteristics of the input variables included at the multivariate probabilistic sensitivity analysis.

GP: general practitioner; ED: emergency department.Geometric distribution parameter: p (probability of success in each trial).Uniform distribution parameters: minimum, maximum.Negative Binomial parameters: s - p (s = mean number of successes, p = probability of success in each trial).Binomial parameters: n - p (n = number of trials, p = probability of success in each trial).Beta General Distribution parameters: alpha1- alpha2 – minimum - maximum (alpha1 and alpha 2 = shape parameters).Poisson parameter: λ (λ = mean number of success).1no variability was introduced to these inputs due to lack of alternative unit cost information availability.