Prognostic factors and survival in patients with gastric stump cancer

Table 3 Univariate and multivariate survival analyses in gastric stump cancer patients

Variable	Univariate1	Multivariate2
	P value	HR	95%CI	P value
Age (yr) (≥ 65 vs < 65)	0.896
Sex ratio (male vs female)	0.302
Initial gastric disease (benign vs cancer)	0.443
Interval time from initial surgery (yr) (≥ 15 vs < 15)	0.428
Reconstruction of first operation (B-I vs B-II)	0.357
Regular follow-up (yes vs no)	0.004	1.332	0.539-3.287	0.535
Tumor size (mm) (≥ 40 vs < 40)	0.040	0.707	0.415-1.206	0.203
Location (anastomotic vs non-anastomotic)	0.857
Histology(differentiated vs undifferentiated)	0.005	0.470	0.212-1.038	0.062
Borrmann type (I-II vs III-IV)	0.001	3.165	1.055-9.500	0.040
Depth of invasion (T1-T2-T3 vs T4)	0.305
Lymph node involvement (NO vs≥ N1)	0.254
Presence of distant metastasis (M0 vs M1)	0.004
Stage (I-II vs III-IV)	0.002	0.603	0.323-1.124	0.111
Type of treatment (curative vs other treatments)	0.001	1.780	1.061-2.987	0.029

¹The Kaplan-Meier method, and significance was determined by the log-rank test;

²Multivariate survival analysis was performed using Cox proportional hazard models.