Table 1

 Causes of acute upper gastrointestinal bleeding

CauseFrequency (%)
Peptic ulcer35–50
Varices5–12
Mallory-Weiss tear2–5
Oesophagitis20–30
Duodenitis/gastritis/erosions10–20
Vascular2–3
Tumours2–5
Aortoduodenal fistula<1