Table 1 Relationship between patient age and clinicopathological features

Age, years

61 (30–74)

81 (75–94)

Sex (male/female)

85 (56.3 %)/66 (43.7 %)

24 (45.3 %)/29 (54.7 %)

0.16

Body mass index (kg/m²)

23.3

23.5

0.91

Co-morbidity (no/yes)

91 (60.3 %)/60 (39.7 %)

18 (40.0 %)/35 (60.0 %)

<0.01

 Hypertension

20

13

 Diabetes mellitus

12

3

 Respiratory disease

6

3

 Heart disease

6

6

 Renal disease

5

3

 Brain infarction

5

4

 Connective tissue disease

3

2

 Liver disease

3

1

Performance status (0, 1/2, 3)

137 (90.7 %)/14 (9.3 %)

38 (71.7 %)/15 (28.3 %)

<0.01

Location (C/A/T/D/S/R)

8 (5.3 %)/18 (11.9 %)/10 (6.6 %)/8 (5.3 %)/34 (22.5 %)/73 (48.4 %)

4 (7.5 %)/12 (22.6 %)/5 (9.4 %)/3 (5.7 %)/12 (22.6 %)/17 (32.2 %)

0.28

Tumor type (0/1/2/3/4/5)

17 (11.3 %)/25 (16.6 %)/94 (62.2 %)/13 (8.7 %)/1 (0.6 %)/1 (0.6 %)

1 (1.9 %)/7 (13.2 %)/38 (71.7 %)/6 (11.3 %)/0/1 (1.9 %)

0.26

Tumor size (mm)

69 (9–103)

47 (9–87)

0.36

Tumor depth (m/sm/mp/ss/se/ai)

0/2 (1.3 %)/19 (12.6 %)/108 (71.5 %)/12 (7.9 %)/10 (6.7 %)

0/2 (3.8 %)/4 (7.5 %)/37 (69.8 %)/7 (13.2 %)/3 (5.7 %)

0.74

Lymph node metastasis (N1/2/3)

98 (64.9 %)/38 (25.2 %)/15 (9.9 %)

34 (64.2 %)/13 (24.5 %)/6 (11.3 %)

0.95

CEA

8.1

9.1

0.69

CA19-9

26.1

21.4

0.97