Those who said yes were quizzed on how often they drank and details on their consumption of specific drinks such as wine, beer, spirits and fortified wine such as sherry and port.

• 对饮酒者再进一步追问他们是否经常喝酒，多少时间喝一次酒，喝什么酒，诸如葡萄酒、啤酒、烈酒，还是加度葡萄酒如雪利酒和波尔图酒。