Performance assessment of the inpatient medical services of a clinical subspecialty: A case study with risk adjustment based on diagnosis-related groups in China

Diagnosis-related groups (DRGs) have been receiving increasing attention in health service research in China. In the present study, we used the 2014 Beijing-Diagnosis Related Groups (BJ-DRGs) to evaluate the inpatient service performance of the clinical subspecialty “major operation of the digestive system” of a cancer specialist hospital.

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From 2008 to 2015, the total weight of the subspecialty in the research

hospital increased annually. In 2015, the cases in this hospital accounted for

50.27% of the total in 16 hospitals. The time consumption index was 0.91,

whereas the charge consumption index was 1.24, which was 24% higher than the

average in16 hospitals. The mortality rates of the middle–low risk groups (GB15

and GB25) in the research hospital and the 16 hospitals were zero, while the

mortality rates for the middle–high risk groups (GB11 and GB23) in the research

hospital were significantly lower than those in 16 hospitals.


The service capacity of the subspecialty steadily increased in the research

hospital. However, the hospital must offer more attention to complex digestive

disease cases (GB11/GB23) and strictly control hospitalization expenses, while

maintaining the advantages of service efficiency and quality (Ovid).


DOI: 10.1097/MD.0000000000010855