Serum pepsinogen levels and their influencing factors:A population-based study in 6990 Chinese from North China
Serum pepsinogen levels and their influencing factors:A population-based study in 6990 Chinese from North China作者机构：Cancer Institute First Affiliated Hospital China Medical University Shenyang 110001 Liaoning Province China
出 版 物：《World Journal of Gastroenterology》 (世界胃肠病学杂志（英文版）)
年 卷 期：2007年第13卷第48期
页 面：6562-6567页
核心收录：
学科分类：1002[医学-临床医学] 100201[医学-内科学(含：心血管病、血液病、呼吸系病、消化系病、内分泌与代谢病、肾病、风湿病、传染病)] 10[医学]
基 金：Supported by National Key Technologies R&D Program of China during the 10th Five-year Plan Period No. 2001BA703B06 (B) 2004BA703B04-02
主 题：Pepsinogen Gastric cancer Helicobacter pylori Screening
摘 要：AIM: To explore the essential characteristics of serum pepsinogen (PG) levels in Chinese people, by analyzing the population-based data on the serum levels of PG Ⅰ and Ⅱ and the PGⅠ/Ⅱ ratio, and their influencing factors in Chinese from North China. METHODS: A total of 6990 subjects, who underwent a gastric cancer screening in North China from 1997 to 2002, were collected in this study. Serum pepsinogen levels were measured by enzyme-linked immunosorbent assay (ELISA). H pylori status was determined by histological examination and H pylori-IgG ELISA. The cut-off point was calculated by using receiving operator characteristics (ROC) curves. Factors linked to serum PG Ⅰ/Ⅱ ratio were identified using a multivariate logistic regression. RESULTS: The serum PGⅠ and PGⅡ levels were significantly higher in males than in females (95.2 μg/L vs 79.7 μg/L, P 0.01; 12.1 μg/L vs 9.4 μg/L, P 0.01), PGⅠ/Ⅱ ratio was significantly lower in males than in females (7.9 vs 8.3, P 0.01). The PG Ⅰ/Ⅱ ratio decreased significantly in the aged groups following the progression of gastric mucosa from normal to non-atrophic and atrophic lesions (10.4, 8.8, and 6.6, respectively). The serum PGⅠand Ⅱ levels were significantly higher in patients with H pylori infection than in those without H pylori infection (88.7 μg/L vs 81.4 μg/L, P 0.01; 11.4 μg/L vs 8.4 μg/L, P 0.01), while the PGⅠ/Ⅱ ratio was significantly lower in patients with H pylori infection than in those without H pylori infection (7.7 vs 9.6, P 0.01). For patients with atrophic lesions, the area under the PGⅠ/Ⅱ ROC curve was 0.622. The best cut-off point for PGⅠ/Ⅱ was 6.9, with a sensitivity of 53.2%, and a specificity of 67.5%. Factors linked to PGⅠ/Ⅱ were sensitive to identified PG using a multinomial logistic regression relying on the following inputs: males (OR: 1.151, 95% CI: 1.042-1.272, P = 0.006), age ≥ 61 years (OR: 1.358, 95% CI: 1.188-1.553, P = 0.000), atrophic lesion (OR: 2.075, 95% CI: 1.870-2.302, P = 0.000)
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