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. 2017 Aug 28;23(32):5945–5953. doi: 10.3748/wjg.v23.i32.5945

Figure 1.

Figure 1

Comparison of serum gastric biomarker levels in various age groups. There was no significant difference in serum levels of PGI and G-17 between each age group with increasing age. In contrast, serum levels of PGII increased with age, and were significantly higher in subjects ≥ 65-years-old compared to 35-44-years-old group. The ratio of PGI/PGII decreased with age, and was significantly lower in subjects ≥ 75-years-old compared to 35-44-years-old group. The “a” denotes comparison with 35-44-years-old age group, aP < 0.05, bP < 0.01. G-17: Gastrin-17; PGI: Pepsinogen I; PGII: Pepsinogen II.