How does epidemiological and clinicopathological features affect survival after gastrectomy for gastric cancer patients-single Egyptian center experience

Table 5 Demographic and clinicopathological features predicting overall survival

Characteristics	Number of patients n (%)	Months after surgery (mean ± SD)	P value
Sex
Male	57 (71)	50.2 ± 3.1
Female	23 (29)	47.8 ± 4.6	P = 0.830
Age
Below 60	49 (61)	47.3 ± 3.5
Above 60	31 (39)	53.6 ± 3.6	P = 0.259
Site
Antrum	51 (64)	47 ± 3.5
Body	19 (24)	57.2 ± 3.5
Fundus	10 (12)	40.3 ± 6	P = 0.315
Type of surgery
Total gastrectomy	30	65 ± 7
Subtotal gastrectomy	50	60	P = 0.548
Tumor differentiation
Well	37 (46)	65.6 ± 0.3
Moderate	20 (25)	50.8 ± 5.3
Poor	23 (29)	20.8 ± 4	P = 0.001
T stage
T1	10 (13)	60 ± 3.2
T2	25 (31)	60 ± 2.4
T3	29 (36)	61 ± 3
T4	16 (20)	12 ± 2.3	P = 0.001
LN ratio
0	7 (9)	61
≤ 0.2	20 (25)	62 ± 2.5
0.2-0.4	26 (32)	62 ± 2.1
> 0.4	27 (34)	22 ± 4.5	P < 0.001
LN status
Negative	7 (9)	61 ± 3.5
Positive	73 (91)	31 ± 2.3	P = 0.03
Number of examined LN
> 15	65 (81)	54.48 ± 2.6
≤ 15	15 (19)	14.5 ± 1	P < 0.001
Surgical margin
Negative	73 (91)	53.8 + 2.4
Positive	7 (9)	9.5 + 1	P < 0.001
Recurrence
No	67 (84)	57.3 + 2.3
Yes	13 (16)	12.3 + 1.2	P < 0.001