To account for local SFA laws, we obtained data on the percent of the state population protected by comprehensive smoke-free state or local laws in workplaces, restaurants, and bars from the American Nonsmokers’ Rights Foundation (Americans for Nonsmokers’ Rights Foundation, 2014). We combined this data with the 0–2 state scale described above for each state and year. For each site (restaurant, worksite, bar), if there was a comprehensive statewide ban, the score was 2. If there was a non-comprehensive statewide ban, the score was 1 plus the proportion of the state population covered by comprehensive local bans. If there was no statewide policy, the score was twice the percent of the population covered by comprehensive local bans. This was to be consistent with the 0–2 coding described above where a comprehensive statewide ban=2. Thus, for example, if half the state is under a comprehensive ban and half is under no ban, then the score = 50%*0 + 50%*2 = 1. Finally, the values for each site were summed to obtain a scale ranging from 0 to 6.
