• Liang Zhang, Ye Niu, Yin-Jiang Lv, Li-Feng Wu, Qi-Lei Hu, Rong Huang, and Ru-Jin Xu.
• Department of Clinical Laboratory, First People's Hospital of Linping District, Hangzhou, Zhejiang, 311100, People's Republic of China.
• Patient Prefer Adher. 2021 Jan 1; 15: 2725-2730.

ObjectiveThis study determined the reference interval of pepsinogen (PG) of healthy people in the local region to provide a basis for early screening of gastric cancer.MethodsAmong the healthy people who underwent a physical examination in our hospital from January 2020 to December 2020, 2568 subjects were selected based on the relevant screening criteria. Their serum PG I and II levels and PG I:PG II ratio were determined by chemiluminescent microparticle immunoassay (CIMA), and the results were statistically analyzed. Finally, according to document CLSI-C28-A3, the PG reference interval of the local region was determined.ResultsThe PG I and II levels of the males in all age groups were higher than those of the females in the corresponding age groups, and the differences were statistically significant (P < 0.05). However, the differences in the PG I:PG II ratio between the genders in the different age groups were not statistically significant (P > 0.05). The PG I and II levels increased with age in both men and women, while the PG I:PG II ratio was not correlated with age in either gender.ConclusionThe PG reference interval of the local region was initially determined as providing a reliable reference basis for clinical treatment.© 2021 Zhang et al.

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