Cost Control of Treatment for Cerebrovascular Patients Using a Machine Learning Model in Western China

Table 4

Results of second grouping rule (without LOS) and hospitalization expense for cerebrovascular disease patients (US dollars).

Group no.	Grouping rules	N (%)	Mean in US dollars	Median ± IQR	CV	Weight	Cost limit	Excess amount N (%)
DRG 1	Grade secondary hospital, CCs with the cerebral arteries lack blood supply, lacunar infarction, chronic cerebral ischemia	17,490 (44%)	838	773 ± 535	0.48	0.65	8,640	2,015 (11.52%)
DRG 2	Grade secondary hospital, CCs with cerebral infarction	4,343 (11%)	1,096	1001 ± 765	0.49	0.85	12,357	289 (6.65%)
DRG 3	Grade B tertiary hospital, CCs with the cerebral arteries lack blood supply, lacunar infarction, chronic cerebral ischemia	5,031 (13%)	1,203	1106 ± 735	0.51	0.94	11,852	687 (13.65%)
DRG 4	Grade A tertiary hospital, CCs with the cerebral arteries lack blood supply, lacunar infarction, chronic cerebral ischemia	5,660 (14%)	1,548	1405 ± 1063	0.47	1.21	17,142	380 (6.67%)
DRG 5	Grade B tertiary hospital, CCs with cerebral arteries supply blood, lacunar infarction, chronic ischemic cerebral, main diagnosis ICD I60, I63, I65, I66, I67, I69	2,132 (5%)	1,789	1483 ± 1048	0.63	1.39	16,980	325 (15.52%)
DRG 6	Grade A tertiary hospital, CCs with cerebral infarction, main diagnosis ICD I60, I63, I65, I66, I67, I69	2,710 (7%)	2,360	1953 ± 1187	0.67	1.84	19,147	316 (11.66%)
DRG 7	Grade B tertiary hospital, CCs with cerebral infarction, main diagnosis ICD I61, I62, I64, I68	1,172 (3%)	2,363	1983 ± 1426	0.56	1.84	22,997	430 (36.69%)
DRG 8	Grade A tertiary hospital, CCs with cerebral infarction, main diagnosis ICD I61, I62, I64, I68	1,251 (3%)	3,151	2884 ± 1746	0.57	2.45	28,160	329 (26.29%)