Association of preoperative body mass index with postoperative complications and survival for patients with gastric cancer: A systematic review and meta-analysis.

ABSTRACT:

Objective

The relationship among body mass index (BMI), postoperative complications, and clinical outcomes in patients undergoing gastrectomy for gastric cancer remains unclear. This study aimed to evaluate this association using a meta-analysis.

Method

We conducted a systematic search of the PubMed, Embase, and Cochrane Library databases up to February 25, 2024. Patients were classified into underweight (<18.5 kg/m2), normal weight (18.5-25.0 kg/m2), and overweight (≥25.0 kg/m2) groups based on BMI categories. Meta-analysis was performed using a random-effects model. Additionally, exploratory sensitivity and subgroup analyses were performed.

Results

Twenty-two studies involving 41,144 patients with gastric cancer were included for quantitative analysis. Preoperative

SUBMITTER: Li Z 

PROVIDER: S-EPMC11774357 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature