Fig. 2
From: Costs of illness in amyotrophic lateral sclerosis (ALS): a cross-sectional survey in Germany
Annual cost of illness (COI) according to King’s staging. Standard errors presented refer to the total annual costs. Significant positive correlations between King’s staging and total costs (rs = 0.482, p < 0.001, n = 156), between King’s staging and direct medical costs (rs = 0.361, p < 0.001, n = 156) and between King’s staging and direct non-medical costs (rs = 0.450, p < 0.001, n = 156). No significant correlations were found between King’s staging and indirect costs (rs = 0.102, p = 0.205, n = 156). Abbreviations: € = Euro. * = p < 0.05