marginally significantP = 0.065
Results Under the DIP system, risk adjustment led to marginally significant reductions in inpatient expenditure per hospitalization [ β = − 151.14, P = 0.065; 95% confidence interval ( CI ) for difference in proportions: − 311.66, 9.38] and in annual total inpatient expenditure per patient ( β = − 200.58, P = 0.078, 95% CI − 423.26, 22.10) for all TB patients.