Comprehensive analysis of risk factors associated with submucosal invasion in patients with early-stage gastric cancer

Table 1 Baseline characteristics of patients with early-stage differentiated gastric cancer

Characteristic	n (%)
Total patients	268
Gender
Male	199 (72.3)
Female	69 (25.7)
Age (years)
mean ± SD	61.5 ± 9.8
Age range	30-83
Age ≥ 60 years	192 (71.6)
Lifestyle factors
History of alcohol consumption	143 (53.4)
History of smoking	152 (56.7)
Family history of gastric cancer	37 (13.8)
Clinical assessments
Anemia	12 (4.5)
Positive fecal occult blood test	60 (22.4)
Elevated CEA	19 (7.1)
Imaging findings
CT showing gastric wall thickening	111 (41.4)
CT showing lymph node enlargement	34 (12.7)
Endoscopic characteristics
Lesion location
Upper third of the stomach	87 (32.5)
Middle third of the stomach	41 (15.3)
Lower third of the stomach	140 (52.2)
Gross morphology
Elevated type	144 (53.7)
Flat type	51 (19.0)
Depressed type	73 (27.2)

CEA: Carcinoembryonic antigen; CT: Computed tomography; WLE: White-light endoscopy; LCI: Linked color imaging; OR: Odds ratio; CI: Confidence interval.