| Etiology | Young and middle-aged group | Elderly group | P value |
| duodenal bulb ulcer | 74 (41.57) | 24 (18.90) | <0.01 |
| gastric ulcer | 35 (19.66) | 35 (27.56) | >0.05 |
| compound ulcer | 13 (7.30) | 7 (5.51) | >0.05 |
| residual gastric ulcer | 4 (2.25) | 6 (4.72) | >0.05 |
| anastomotic ulcer | 3 (1.69) | 2 (1.57) | >0.05 |
| esophageal ulcer | 1 (0.56) | 4 (3.15) | >0.05 |
| esophageal and stomach bottom varices bleeding in cirrhosis of schistosomiasis | 24 (13.48) | 12 (9.45) | >0.05 |
| esophageal and stomach bottom varices bleeding in hepatitis B cirrhosis | 10 (5.62) | 13 (10.24) | >0.05 |
| esophageal and stomach bottom varices bleeding in alcoholic cirrhosis | 2 (1.12) | 3 (2.36) | >0.05 |
| esophageal cancer | 0 (0.00) | 2 (1.57) | >0.05 |
| liver cancer | 2 (1.12) | 0 (0.00) | >0.05 |
| gastric cancer | 2 (1.12) | 11 (8.66) | <0.01 |
| esophagus and cardia mucosa tear syndrome | 4 (2.25) | 2 (1.57) | >0.05 |
| gastric polyps | 2 (1.12) | 1 (0.79) | >0.05 |
| acute erosive gastritis | 1 (0.56) | 4 (3.15) | >0.05 |
| esophageal papilloma | 1 (0.56) | 0 (0.00) | >0.05 |
| chronic atrophic gastritis with erosion | 0 (0.00) | 1 (0.79) | >0.05 |