Serum Pepsinogen I, Pepsinogen II, and Gastrin 17 in Relatives of Gastric Cancer Patients: Comparative Study With Type and Severity of Gastritis  Arghavan Haj–sheykholeslami, Naser Rakhshani, Aliakbar Amirzargar, Reza Rafiee, S. Mehdi Shahidi, Behrouz Nikbin, Farideh Khosravi, Sadegh Massarrat  Clinical Gastroenterology and Hepatology  Volume 6, Issue 2, Pages 174-179 (February 2008) DOI: 10.1016/j.cgh.2007.11.016 Copyright © 2008 AGA Institute Terms and Conditions

Figure 1 ROC curves generated with PGI (gray line), PGII (black line), PG I:II (gray dashed line), and gastrin 17 (black dashed line) for detecting any kind of gastritis among first-degree relatives of gastric cancer patients. The area under the curve is 0.67 for PGI, 0.85 for PGII, 0.27 for PG I:II ratio, and 0.67 for gastrin 17. Clinical Gastroenterology and Hepatology 2008 6, 174-179DOI: (10.1016/j.cgh.2007.11.016) Copyright © 2008 AGA Institute Terms and Conditions

Figure 2 ROC curves generated with PGI (gray line), PGII (black line), PG I:II (gray dashed line), and gastrin 17 (black dashed line) for detecting corpus-predominant gastritis among first-degree relatives of gastric cancer patients. The area under the curve is 0.47 for PGI, 0.65 for PGII, 0.28 for ratio, and 0.66 for gastrin 17. Clinical Gastroenterology and Hepatology 2008 6, 174-179DOI: (10.1016/j.cgh.2007.11.016) Copyright © 2008 AGA Institute Terms and Conditions