What are the results of the base case analysis?
The base-case analysis found that a threshold of 400pg/ml was the most cost effective NT-proBNP threshold. Results were summarised in Table 15, which showed the mean per patient NMB at the threshold, probability of being the most cost effective option at a 20,000 per QALY threshold, costs, and QALYs. The mean costs and QALYs from the probabilistic analysis were presented graphically on the cost-effectiveness plane in Figure 5, with the cost-effectiveness ratio of 400pg/ml versus echo all being 5,496. The disaggregated costs and QALYs from the probabilistic base-case analysis were summarised in Tables 17, 18 and 19.  