Surgical treatment of liver cancer and pancreatic cancer under the China Healthcare Security Diagnosis Related Groups payment system

Table 1 Comparison of total hospitalization costs and length of stay for different surgical procedures in the same diagnosis-related group

DRG	Surgery classification	Total hospitalization expenses			The number of days in hospital
		Median (quartiles)	χ2	P value	Median (upper and lower quartiles)	χ2	P value
HB11			158.75	< 0.0001		125.9	< 0.0001
	Liver resection	74463.5 (60025.5, 94356)3			9 (7, 12)2
	Pancreaticoduodenectomy	142663 (133720, 179562.25)1			20 (14.25, 24.75)1
	Pancreatectomy	102252.5 (95235, 119203.25)2			13.5 (11, 18.75)1
HB13			234.83	< 0.0001		131.83	< 0.0001
	Liver resection	63929 (51004.75, 78147)3			7 (7, 10.25)3
	Pancreaticoduodenectomy	136335 (120212, 165313.5)1			16 (12.5, 22)1
	Pancreatectomy	92788.5 (79258.5, 105594.25)2			10.5 (8, 14.25)2
HB15			44.60	< 0.0001		15.06	0.0005
	Liver resection	67274.5 (54285.25, 81836.25)2			9.5 (7, 13)2
	Pancreaticoduodenectomy	134561 (114775, 150848)1			19 (11, 22)1
	Pancreatectomy	82528 (76816, 95098)1			11 (8, 13.5)2

1, 2, and 3 are pairwise comparison result indicators; 1 > 2 > 3. If the letters are the same, the difference between the groups is statistically significant; if the letters are different, the difference between the groups is not statistically significant.

DRG: Diagnosis-related group.