Table 1 Patients’ characteristics.

From: Life expectancy of patients with early gastric cancer who underwent curative gastrectomy: comparison with the general population

Variables

n

(%)

Age (years)

  

 < 40

470

5.44

 40–49

1600

18.52

 50–59

2641

30.58

 60–69

2377

27.52

 ≥ 70

1549

17.93

Age (years)

  

 20–29

35

0.41

 30–39

435

5.04

 40–49

1600

18.52

 50–59

2641

30.58

 60–69

2377

27.52

 70–79

1357

15.71

 80+

192

2.22

Sex

  

 Male

5584

64.65

 Female

3053

35.35

BMI (kg/m²)

  

 < 18.5

228

2.71

 18.5–24.9

5176

61.59

 ≥ 25.0

3000

35.7

Status at the end of follow-up

  

 Alive

7253

83.98

 Dead

1384

16.02

Comorbidity

  

 No

4834

55.97

 Yes

3803

44.03

Extent of gastrectomy

  

 Distal

6880

79.66

 Total

1757

20.34

Type of anastomosis

  

 B-I (Extracorporeal)

3641

42.16

 Delta (Intracorporeal)

1862

21.56

 B-II

630

7.29

 RYGJ

747

8.65

 RYEJ

1757

20.34

LN dissection

  

 D1 (including less than D1)

416

4.82

 D1+

2214

25.69

 D2

5859

67.99

 D3

129

1.5

Histology

  

 WD/MD

3656

42.44

 PD/SRC

4598

53.38

 Papillary

61

0.71

 Mucinous

75

0.87

 Others

224

2.6

Lauren

  

 Intestinal

3967

46.54

 Diffuse

3279

38.47

 Mixed

1218

14.29

 Indeterminate

60

0.7

T stage

  

 T1

7844

90.82

 T2

793

9.18

N stage

  

 N0

8134

94.18

 N1

503

5.82

TNM stage

  

 Stage IA

7354

85.15

 Stage IB

1283

14.85

  1. BMI = body mass index; RYGJ = Roux-en-Y gastrojejunostomy; RYEJ = Roux-en-Y esophagojejunostomy LN = lymph node; WD = well differentiated adenocarcinoma; MD = moderately differentiated adenocarcinoma; SRC = signet ring cell carcinoma; PD = poorly differentiated adenocarcinoma;
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