On the basis of this classification , patients were started on background lipid-lowering therapy with diet alone or diet plus atorvastatin at a dose of 10 mg daily , atorvastatin at a dose of 80 mg daily , or atorvastatin at a dose of 80 mg daily plus ezetimibe at a dose of 10 mg daily , for a run-in period of 4 to 12 weeks .