TableĀ 2

Investigations requested among 613 new patient referrals to a luminal gastroenterology clinic

Diagnostic testFrequency (%)
Coeliac serology327 (53.3)
Upper GI endoscopy253 (41.3)
Colonoscopy160 (26.1)
Computed tomography of abdomen102 (16.6)
Abdominal ultrasound scan61 (10.0)
SeHCAT scan49 (8.0)
Faecal elastase44 (7.2)
Small bowel meal and follow-through42 (6.9)
24 h pH and oesophageal manometric studies32 (5.2)
Barium swallow28 (4.6)
Glucose hydrogen breath test24 (3.9)
Stool microscopy and culture18 (2.9)
Gastric emptying study17 (2.8)
Flexible sigmoidoscopy16 (2.6)
Pelvic ultrasound scan8 (1.3)
Anal manometric studies8 (1.3)
Magnetic resonance enterography7 (1.1)
Colonic transit studies5 (0.8)
Defaecating proctogram5 (0.8)
Barium meal4 (0.7)
Capsule endoscopy3 (0.5)
  • GI, gastrointestinal.