The incidence of VTE according to clinical parameters.

*<p>Fisher's exact test, ^†linear-by-linear association.</p>‡<p>Subtotal gastrectomy was conducted in 271 patients and proximal gastrectomy in 11 patients.</p><p>Abbreviations: VTE, venous thromboembolism; BMI, body mass index; WBC, white bleed cell.</p

Flow of patients in this study.

<p>Flow of patients in this study.</p

Patient characteristics.

<p>Abbreviations: SD, standard deviation.</p>*<p>chi-square test, ^†t-test.</p><p>In multivariate analysis using a logistic regression model, the clinical parameters with P<0.20 in univariate analyses (age, number of comorbidities, WBC counts, hemoglobin level, surgical procedure [laparoscopic vs. open surgery] and stage) were included. A backward stepwise conditional logistic regression was used with P = 0.10 as the entry and P = 0.10 as the removal criteria.</p><p>Abbreviations: OR, odds ratio; CI, confidence interval; WBC, white blood cell.</p

Characteristics of patients who developed VTE during postoperative periods.

<p>Abbreviations: VTE, venous thromboembolism; DVT, deep vein thrombosis; PE, pulmonary embolism; LMWH, low molecular weight heparin.</p