Table 1

Participant characteristics

Gastro-oesophageal reflux diseaseREFLUX0167
Abdominal aortic aneurysmEVAR1258
Knee replacementKAT1258
Varicose veinsREACTIV/CLaSS33511
  • CLaSS, Comparison of LAser, Surgery and foam Sclerotherapy; EVAR, EndoVascular Aneurysm Repair; FOOD, Feed Or Ordinary Diet ; KAT, Knee Arthroplasty Trial; REACTIV, Randomised and Economic Assessment of Conservative and Therapeutic Interventions for Varicose Veins .