Table 2.

Pre- and postoperative day 1, 3 and 6 laboratory tests

Preop laboratory test	OG (48)	LG (27)	P value
Albumin (g/dl)	3.8 ± 0.6	3.7 ± 0.5	0.571
AST (IU/l)	45.5 ± 52.7	32.1 ± 13.8	0.100
ALT (IU/l)	34.7 ± 31.1	29.3 ± 18.4	0.408
Alkaline phosphatase (IU/l)	75.3 ± 23.9	90.7 ± 45.3	0.060
Total bilirubin (mg/dl)	0.9 ± 0.3	0.9 ± 0.3	0.852
Prothrombin time (INR)	1.1 ± 0.2	1.1 ± 0.1	0.603
Prothrombin time (%)	88.6 ± 17.6	89.1 ± 15.5	0.912
AFP (ng/ml)	21.9 ± 53.3	6.8 ± 9.0	0.437
CEA (ng/ml)	1.7 ± 1.2	2.2 ± 1.4	0.166
CA19-9 (U/ml)	17.9 ± 28.4	10.3 ± 9.3	0.260
POD#1 laboratory tests
Albumin (g/dl)	3.0 ± 0.4	3.0 ± 0.3	0.821
AST (IU/l)	62.9 ± 77.0	61.0 ± 46.1	0.907
ALT (IU/l)	47.9 ± 61.4	54.9 ± 44.8	0.610
Alkaline phosphatase (IU/l)	59.0 ± 19.2	89.8 ± 117.6	0.189
Total bilirubin (mg/dl)	1.3 ± 0.5	1.3 ± 0.6	0.595
Prothrombin time (INR)	1.24 ± 0.3	1.26 ± 0.04	0.796
Drain amount (ml)	240 ± 305	220 ± 374	0.827
POD#3 laboratory tests
Albumin (g/dl)	3.0 ± 0.4	2.9 ± 0.4	0.811
AST (IU/l)	39.3 ± 28.9	28.1 ± 10.5	0.024
ALT (IU/l)	38.4 ± 39.7	31.4 ± 21.6	0.407
Alkaline phosphatase (IU/l)	54.8 ± 14.4	58.1 ± 20.8	0.432
Total bilirubin (mg/dl)	1.3 ± 0.8	1.3 ± 0.7	0.726
Prothrombin time (INR)	1.25 ± 0.24	1.29 ± 0.03	0.613
Drain amount (ml)	341 ± 369	220 ± 338	0.200
POD#6 laboratory tests
Albumin (g/dl)	3.1 ± 0.4	3.0 ± 0.3	0.641
AST (IU/l)	33.7 ± 12.6	28.5 ± 6.3	0.033
ALT (IU/l)	38.5 ± 34.5	22.6 ± 13.9	0.040
Alkaline phosphatase (IU/l)	65.4 ± 19.8	68.8 ± 29.8	0.606
Total bilirubin (mg/dl)	1.4 ± 1.5	1.2 ± 0.5	0.471
Prothrombin time (INR)	1.27 ± 0.28	1.23 ± 0.18	0.762
Drain amount (ml)	310 ± 352	173 ± 254	0.182

OG open gastrectomy group, LG laparoscopic or laparoscopic-assisted gastrectomy group, POD# postoperative day number