Istituto di Ricerche Farmacologiche 'Mario Negri', Via Eritrea 62, Milan, 20157, Italy.
Abstract:
In a case-control study from Italy and Switzerland with 404 oesophageal cancer cases and 1070 hospital controls, the risk of oesophageal cancer declined with time since cessation of smoking or drinking, and was significantly reduced (odds ratio = 0.11) 10 or more years after cessation of both habits.