Table 3 Demographic characteristics at the initial examination.

From: Prediction of future gastric cancer risk using a machine learning algorithm and comprehensive medical check-up data: A case-control study

 

Patients with detected gastric cancer

Patients without detected gastric cancer

P valuea

n

89

1342

 

Examination period (months), mean (SD)

47.4 (32.8)

127.6 (4.1)

<0.001

Age (y), mean (SD)

56.7 (8.8)

46.2 (1.0)

<0.001

Sex (male), n (%)

75 (84.2)

1042 (77.6)

0.183

Body mass index (kg/m2), mean (SD)

23.3 (2.9)

23.1 (3.2)

0.539

H. pylorib serology testing positive, n (%)

69 (77.5)

409 (30.4)

<0.001

Upper gastrointestinal endoscopic findings

Chronic atrophic gastritis, n (%)

81 (91.0)

409 (30.4)

<0.001

Gastric or duodenal ulcers including scars, n (%)

21 (23.5)

118 (8.79)

<0.001

GERDc or Barrett’s oesophagus, n (%)

20 (22.4)

312 (23.2)

0.969

Post-gastrectomy, n (%)

4 (4.49)

19 (1.41)

0.072

Blood tests

White blood cell counts (×103/μL), mean (SD)

5.866 (1.762)

5.510 (1.598)

0.0678

Neutrophil ratio (%), mean (SD)

59.1 (8.3)

57.3 (8.6)

0.0527

Lymphocyte ratio (%), mean (SD)

32.2 (7.1)

33.7 (8.0)

0.0591

Eosinophil ratio (%), mean (SD)

2.8 (1.8)

3.2 (2.6)

0.0278

Monocyte ratio (%), mean (SD)

5.5 (1.8)

5.3 (1.3)

0.275

Basophil ratio (%), mean (SD)

0.5 (0.3)

0.6 (0.4)

0.198

Haemoglobin (g/dL), mean (SD)

14.8 (1.0)

14.4 (1.3)

0.391

Mean corpuscular volume (fL), mean (SD)

94.4 (4.6)

92.3 (4.7)

<0.001

Platelet count (×104/μL), mean (SD)

22.2 (4.8)

23.0 (5.1)

0.158

Haemoglobin A1c (%), mean (SD)

5.85 (0.87)

5.39 (0.56)

<0.001

  1. at-test or chi-squared test.
  2. bHelicobacter pylori, H. pylori.
  3. cGastroesophageal reflux disease, GERD.