Predictive value of magnetic resonance imaging parameters combined with tumor markers for rectal cancer recurrence risk after surgery

Table 2 Univariate logistic regression analysis

Variables	β	SE	Z	P value	OR (95%CI)
Age	0.01	0.02	0.29	0.775	1.01 (0.97-1.05)
Sex
Female	-	-	-	-	1.00 (Reference)
Male	0.63	0.48	1.33	0.183	1.89 (0.74-4.80)
BMI	0.07	0.08	0.88	0.377	1.07 (0.92-1.24)
Smoking
No	-	-	-	-	1.00 (Reference)
Yes	-0.30	0.49	-0.61	0.542	0.74 (0.29-1.93)
Drinking
No	-	-	-	-	1.00 (Reference)
Yes	-0.15	0.45	-0.34	0.737	0.86 (0.35-2.09)
Family history
No	-	-	-	-	1.00 (Reference)
Yes	-0.05	0.68	-0.08	0.940	0.95 (0.25-3.63)
Complication
No	-	-	-	-	1.00 (Reference)
Yes	0.24	0.43	0.57	0.571	1.28 (0.55-2.96)
MTL	0.26	0.17	1.47	0.143	1.29 (0.92- 1.82)
Tumor location
Low	-	-	-	-	1.00 (Reference)
Median	0.15	0.49	0.30	0.762	1.16 (0.44-3.02)
High	0.41	0.59	0.69	0.490	1.50 (0.47-4.74)
MrT staging
I or II	-	-	-	-	1.00 (Reference)
III or IV	0.73	0.44	1.67	0.096	2.07 (0.88-4.85)
MrN staging
0 or I	-	-	-	-	1.00 (Reference)
II or III	0.92	0.44	2.08	0.037	2.50 (1.06-5.93)
CRM
Negative	-	-	-	-	1.00 (Reference)
Positive	1.32	0.47	2.80	0.005	3.76 (1.49-9.49)
EMVI
Negative	-	-	-	-	1.00 (Reference)
Positive	0.96	0.46	2.09	0.036	2.62 (1.06-6.43)
CEA	0.11	0.03	4.06	< 0.001	1.12 (1.06-1.18)
CA125	0.06	0.04	1.40	0.161	1.06 (0.98-1.15)
CA199	0.22	0.04	4.95	< 0.001	1.24 (1.14-1.35)

SE: Standard error; OR: Odds ratio; CI: Confidence interval; MTL: Maximum tumor length; MrT staging: Magnetic resonance based T staging; MrN staging: Magnetic resonance based N staging; CRM: Circumferential resection margin; EMVI: Extramural vascular invasion; CEA: Carcinoembryonic antigen; CA: Carbohydrate antigen.