Risk Factors and Medico-Economic Effect of Pancreatic Fistula after Pancreaticoduodenectomy

Table 4

Hospital charges and hospital stays.

	NOPF	PF	NOCR-PF	CR-PF
Average hospital stays (d)
Normality test	0.009	0.024	0.004	0.06
-test/nonparametric test		0.000^a		0.000^b
Mean (d)	22.25	39.08	23.33	46.42
Standard deviation				15.80
Average hospital charges
Normality test	0.223	0.617	0.279	0.915
-test/nonparametric test		0.000^a		0.001^b
Mean (yuan)	56323.47	83347.93	61339.84	81448.18
Standard deviation	24360.81	32007.30	28166.70	31699.74

Missing values: data missing for 8 patients in hospital charges. value of nonparametric test between PF and NOPF groups; value of test between NOCR-PF and CR-PF groups.