Table 4.

Overall survival of the different groups based on serum LDH before and after treatment among the 244 primary duodenum adenocarcinoma patients in the present study.

Serum LDH	Median overall survival(months)	95% CI (months)	p value
High-high(n=20)	14.5	1.1-27.9
High-low(n=17)	39.3	0-80.6	Vs. high-high: 0.116
			Vs. low-low: 0.592
Low-high(n=27)	15.4	6-24.8	Vs. high-high: 0.499
Low-low(n=180)	52.1	36.7-67.6	Vs. high-high:<0.0001
High-high/high-low/ low-high(n=64)	15.9	11.7-20.1	Vs. low-low: <0.0001

LDH: lactate dehydrogenase