Timing of chemotherapy and survival in patients with resectable gastric adenocarcinoma

Table 2 Comparison of characteristics by chemotherapy groups n (%)

Characteristic		Neoadjuvantn = 37	Adjuvantn = 290	P value
Age, yr	Mean (± SD)	65 (± 10)	61 (± 14)	0.0583
Sex	Men	23 (62)	198 (68)	0.4543
	Women	14 (38)	92 (32)
Race/ ethnicity	Non-hispanic white	18 (49)	100 (34)	0.2885
	Black	3 (8)	30 (10)
	Hispanic white	6 (16)	82 (28)
	Asian/pacific islanders	10 (27)	78 (27)
Tumor location	Proximal	12 (32)	86 (30)	0.9189
	Distal	10 (27)	90 (31)
	Whole	6 (16)	53 (18)
	Middle	9 (24)	61 (21)
Grade	Well differentiated	0 (0)	1 (0)	0.9087
	Moderately differentiated	7 (19)	63 (22)
	Poorly differentiated	27 (73)	207 (71)
	Undifferentiated	2 (5)	16 (6)
	Unknown	1 (3)	3 (1)
Tumor size	≤ 5 cm	10 (27)	107 (37)	0.2297
	> 5 cm	16 (43)	129 (44)
	Unknown	11 (30)	54 (19)
T stage1	T2	0 (0)	24 (8)	0.4283
	T3	19 (51)	144 (50)
	T4a	15 (41)	81 (28)
	T4b	3 (8)	41 (14)
N stage1	N0	7 (19)	31 (11)	0.2684
	N1	27 (73)	234 (81)
	N2	1 (3)	14 (5)
	N3	2 (5)	11 (4)
Node status	N-	7 (19)	31 (11)	0.1413
	N+	30 (81)	259 (89)
AJCC7 group	II	23 (62)	164 (57)	0.5160
	III	14 (38)	126 (43)

¹P values shown are based on the Jonckheere-Terpstra test for ordinal data. AJCC: American joint commission on cancer.