Table 1

Participants’ characteristics

CharacteristicGastrectomyControlP value
Number of participants5056
Number of participants with metabolite profiles4454
Gastrectomy type
 Total gastrectomy (n)12
 Subtotal gastrectomy (n)38
Gastrectomy reconstruction (n)
 Stomach-stomach anastomosis1
 Billroth I2
 Jejunal interposition6
 Pylorus-preserving gastrectomy8
 Roux-en-Y29
Time since surgery (median (range) in years)5 (1–20)
Age61.6±10.764.0±11.20.205
Body mass index (kg/m2)20.6±2.623.2±3.01.22×10-5
Smokers, n (%)3 (6.0)5 (14.3)0.479
Gender (F/M)16/3423/330.420
Alcohol consumption (>60 g/day), n (%)22 (44.0)31 (55.4)0.331
Serum glucose (mg/dL)101.2±12.5104.6±15.60.147
Total cholesterol (mg/dL)190.4±25.7209.0±35.80.0145
Medications
 Diabetes, n (%)2 (4.2)12 (21.8)0.00889
 High blood pressure, n (%)13 (26.0)17 (30.4)0.743
 Cholesterol, n (%)6 (12.0)10 (17.9)0.502
 Gout, n (%)0 (0)2 (3.6)0.497
 Gastric acid suppression, n (%)4 (8.0)13 (23.2)0.0375
 Analgesic, n (%)1 (2.0)2 (3.6)1.000
 Anticoagulant, n (%)4 (8.0)4 (7.1)1.000
 Other, n (%)8 (16.0)17 (30.9)0.108
  • Statistical test performed: Mann-Whitney U test for numerical data and Fisher’s exact test for categorical data; n, number of participants.

  • F, female; M, male.