On the Usefulness of the Logarithmic Skew Normal Distribution for Describing Claims Size Data

Table 4

Parameter estimates for Wisconsin hospital costs dataset including covariates.

Variable	Estimate	SE	-Stat.	value
Hospital discharge costs	0.015	0.002	6.37	0.000
Health service area	0.002	0.001	1.74	0.080
Payer	0.012	0.005	2.43	0.014
Size area population	0.015	0.005	3.10	0.001
Number of beds	−0.010	0.008	−1.20	0.228
Income	0.001	0.005	0.31	0.756
Constant	1.607	0.008	200.32	0.000
	0.563	0.269	2.09	0.036
	−2.974	0.361	−8.21	0.000
	0.186	0.014	13.03	0.000