How health risk factors affect inpatient costs among adults with stroke in China: the mediating role of length of stay

Table 4 Hierarchical regression among stroke risk factor group, LOS, and inpatient costs

variables	Log (Inpatient costs)	Length of stay (LOS)	Log (Inpatient costs)
	Model 4	Model 5	Model 6
	Coefficient (95% CI)	Coefficient (95% CI)	Coefficient (95% CI)
Stroke risk factor group (ref: Low)
Moderate	-0.20(-0.36, -0.03)^*	0.13(-1.04,1.29)	-0.21(-0.35, -0.06)^**
High	0.36(0.21,0.52)^***	2.25(1.12,3.38)^***	0.20(0.07,0.35)^**
Mediator
LOS			0.07(0.06,0.08)^***
Adj R-squared	14.50%	8.20%	35.58%

Note:
(1) *p < 0.05, **p < 0.01, ***p < 0.001
(2) All coefficients are unstandardized
(3) Abbreviation: LOS, length of stay
(4) All the models were adjusted for age, sex, BMI, marital status, medical insurance, and stroke subtype

ISSN: 1471-2318