Table 1.

Clinical characteristics of subjects

Characteristic	n (%)
Admitting diagnosis
Acute abdominal pain	19 (5.3)
Musculoskeletal trauma	30 (8.4)
Eye trauma	21 (5.9)
Head injury	18 (5.0)
Burns	10 (2.8)
Hydronephrosis	18 (5.0)
Miscarriage	13 (3.6)
Arrhythmia	5 (1.4)
Acute coronary syndrome	51 (14.3)
Gastrointestinal bleeding	111 (31.1)
Obstructive jaundice	55 (15.4)
Upper respiratory tract bleeding	6 (1.7)
Type of medical procedure
Digestive surgery	19 (5.3)
Laryngoscopy	76 (21.3)
Cardiovascular intervention	56 (15.7)
Eye treatment	21 (5.9)
Nasopharyngeal surgery	6 (1.7)
Digestive tract endoscopy	166 (46.5)
Caesarean delivery	13 (3.6)