Serum gastrin-17 concentration for prediction of upper gastrointestinal tract bleeding risk among peptic ulcer patients

Table 1 Demographic distributions of peptic ulcer patients with and without bleeding

Group	Sex		Age1 (yr)
	Male	Female
Peptic ulcer without bleeding	75	32	52.6 ± 14.7
Peptic ulcer complicated by bleeding	63	29	47.9 ± 17.4a
Total	138	61	50.43 ± 16.16

¹mean ± SD.

^aP < 0.05 compared to the non-bleeding group.