Expression of miR-1304 in patients with esophageal carcinoma and risk factors for recurrence

Table 1 Comparison of baseline data

Factors	Normal group (n = 50)	Patient group (n = 78)	t / χ2	P value
Gender			0.161	0.688
Male	30 (60.00)	44 (56.41)
Female	20 (40.00)	34 (43.59)
Age (yr)	60.4 ± 4.8	58.7 ± 5.4	0.310	0.757
Smoking history			0.295	0.587
Yes	30 (60.00)	43 (55.13)
No	20 (40.00)	35 (44.87)
History of alcoholism			0.081	0.776
Yes	8 (16.00)	14 (17.95)
No	42 (84.00)	64 (82.05)
Location
The upper thoracic area		19 (24.36)
The middle thoracic area		34 (43.59)
The lower thoracic area		25 (32.05)
Tumor size
≥ 3 cm		45 (57.69)
< 3 cm		33 (42.31)
Differentiation
Low differentiation		25 (32.05)
Moderate + high differentiation		53 (67.95)
TNM stage
Stage I		27 (34.62)
Stage II + III		51 (65.38)