All type of patients: 11 trials - PHS II vitamin E - WACS vitamin E - WHS vitamin E - AREDS - PPP - ASAP - HOPE - GISSI - CHAOS - ATBC vitamin E - Linxian
Patients with renal disease: 2 trials - HOPE renal insufficiency subgroup - SPACE
Primary prevention: 6 trials - PHS II vitamin E - WHS vitamin E - AREDS - PPP - ATBC vitamin E - Linxian
Secondary prevention: 7 trials - WACS vitamin E - HOPE renal insufficiency subgroup - HOPE - SPACE - GISSI - ATBC 2nd prev subgroup (vitamin E) - CHAOS