Postoperative change of anti-Thomsen-Friedenreich and Tn IgG level: The follow-up study of gastrointestinal cancer patients

Table 2 Postoperative changes of the level of antibodies in gastrointestinal tumor of different grades

Grade1	Detection of antibodies	Mean ± SD	Increase	Median of difference	Difference		P (sign test)
					+	-
G1 + G2 (n = 24)	TF, preoperative	2.03 ± 2.04
	postoperative	2.43 ± 2.86	19.7%	0.05	15	9
G3 (n = 27)	TF, preoperative	1.84 ± 1.71
	postoperative	3.03 ± 3.20	64.7%	0.29	22	5	< 0.01
G1 + G2 (n = 30)	Tn, preoperative	2.46 ± 1.80
	postoperative	2.99 ± 2.45	21.5%	0.12	18	12
G3 (n = 25)	Tn, preoperative	2.45 ± 2.18
	postoperative	3.15 ± 2.92	28.6%	0.42	19	6	< 0.05
G1 + G2 (n = 32)	αGal, preoperative	4.10 ± 2.55
	postoperative	4.62 ± 3.20	12.7%	0.17	20	12
G3 (n = 32)	αGal, preoperative	5.09 ± 3.34
	postoperative	6.61 ± 3.70	29.9%	1.20	24	8	< 0.01

¹G1+G2-well-and moderately-differentiated carcinomas.