Scholarlink

Background <p>Early detection and screening of gastric cancer (GC) remain a critical clinical priority. This study aimed to develop and externally validate a simple, questionnaire-based prediction risk score (PRS) to identify individuals at elevated risk of GC prior to gastroscopy in outpatient settings.</p> Methods <p>This multicenter study developed the PRS using regression coefficients derived from 4800 participants in the Guangzhou cohort (training cohort) and conducted internal validation in the remaining 2058 participants (testing cohort). External validation was subsequently performed in an independent cohort of 1811 participants from Shenzhen cohort and in 424,897 participants from the China Kadoorie Biobank (CKB cohort). Participants were then stratified into average-risk and high-risk groups according to comparable levels of predicted risk.</p> Results <p>The PRS included five predictors: age, sex, body mass index (BMI), family history of GC in first-degree relatives, and consumption of pickled food, with a total score ranging from 0 to 11. In the training cohort, the prevalence of GC was 1.4% in the average-risk group (0–4 points) and 8.3% in the high-risk group (5–11 points) (<i>P</i> &lt; 0.001). Applying gastroscopy to high-risk participants allowed detection of 85.2% (178/209) of GC cases, including 36.5% (65/178) of early cases, while 55.1% of procedures could be avoided in the average-risk group. The PRS demonstrated good discrimination across the training, testing, Shenzhen cohort, and CKB cohorts (area under the receiver operating characteristic curve [AUC]: 0.780, 0.789, 0.732, and 0.723, respectively) and showed satisfactory calibration (<i>P</i> &gt; 0.05).</p> Conclusions <p>The PRS has good performance in predicting the risk of GC and reducing unnecessary gastroscopy screening, thus improves cost-effectiveness and saves medical resources.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Development and validation of a simple prediction risk score for predicting risk of gastric cancer in outpatient department

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月22日

查看全文
  • Shaoxiong Yi,
  • Qinbo Cai,
  • Wenqing Dong,
  • Wentong Lan,
  • Xun Hou,
  • Tengfei Hao,
  • Honglei Chen,
  • Zhen Ding,
  • Xinming Song,
  • Yulong He,
  • Dongjie Yang

摘要

Background

Early detection and screening of gastric cancer (GC) remain a critical clinical priority. This study aimed to develop and externally validate a simple, questionnaire-based prediction risk score (PRS) to identify individuals at elevated risk of GC prior to gastroscopy in outpatient settings.

Methods

This multicenter study developed the PRS using regression coefficients derived from 4800 participants in the Guangzhou cohort (training cohort) and conducted internal validation in the remaining 2058 participants (testing cohort). External validation was subsequently performed in an independent cohort of 1811 participants from Shenzhen cohort and in 424,897 participants from the China Kadoorie Biobank (CKB cohort). Participants were then stratified into average-risk and high-risk groups according to comparable levels of predicted risk.

Results

The PRS included five predictors: age, sex, body mass index (BMI), family history of GC in first-degree relatives, and consumption of pickled food, with a total score ranging from 0 to 11. In the training cohort, the prevalence of GC was 1.4% in the average-risk group (0–4 points) and 8.3% in the high-risk group (5–11 points) (P < 0.001). Applying gastroscopy to high-risk participants allowed detection of 85.2% (178/209) of GC cases, including 36.5% (65/178) of early cases, while 55.1% of procedures could be avoided in the average-risk group. The PRS demonstrated good discrimination across the training, testing, Shenzhen cohort, and CKB cohorts (area under the receiver operating characteristic curve [AUC]: 0.780, 0.789, 0.732, and 0.723, respectively) and showed satisfactory calibration (P > 0.05).

Conclusions

The PRS has good performance in predicting the risk of GC and reducing unnecessary gastroscopy screening, thus improves cost-effectiveness and saves medical resources.