Surveys by the Addiction Research Foundation of Ontario have produced
annual estimates on smoking prevalence since 1991. This report describ
es the three series of telephone surveys from which these data are dra
wn as well as future plans to monitor tobacco use in Ontario, In addit
ion to provision of updated descriptive results, the: methodology and
limitations of the data are discussed. Prevalence data for 1996 are pr
esented from the Ontario Drug Monitor, a telephone survey of Ontario a
dults (n=2721). The overall prevalence of smoking in Ontario was 27% (
35% confidence interval: 25% to 29%); 23% smoked daily (95% confidence
interval: 21% to 25%). There is no evidence of any decline in the pre
valence of smoking since 1991, and no sex differences were found in sm
oking prevalence. Future reports will update trend data and provide ro
bust regional estimates.