Crynodeb o'r cais
Data from a pilot test (February and March 2018) and two months of business as usual telephone collection (April and May 2018) on the percentage of people currently smoking, proportion of people who have never smoked, proportion of people who have quit smoking, average daily cigarette consumption, proportion of people who have tried an e-cigarette and proportion of people who have been an e-cigarette user by sex and age. Published annual figures presented for comparison.