The total Minnesota population aged 18 years and older was 3,717,580 in 2001, with a smoking prevalence of 22.2%.
The proportion of Minnesotan smokers who were actively considering quitting was 64%.
Eighty per cent of the current smokers who were interested in quitting would use NRT if cost were no object.
The rate of former and current smokers that used NRT when they last attempted to quit was 15%.
The net gain in NRT users obtained by providing free NRT would be 68% (i.e. 80% multiplied by 85%) of potential quitters or 359,000 people.
It was estimated that 54.9% of Minnesotan smokers were moderate to heavy smokers (> 15 cigarettes/day), thus 197,000 of the 359,000 new NRT users could have gained benefit from NRT.
The pooled odds ratio of quitting with NRT over baseline was 1.71 (95% confidence interval, CI: 1.56 - 1.87).
The baseline quit rate for smokers interested in quitting was 10.6%.
The smoking relapse rate was 35%, resulting in a total of 18,500 quitters after one year of the free NRT programme.
Each sustained quitter generated 1.58 discounted (at 3%) QALYs for an average quitter aged 45 years.
The number of indoor workers in Minnesota was 2,166,000.
The rate of indoor workers in Minnesotan already covered by smoke-free workplace policies was 73.9%. Thus, there were 125,000 smokers who worked indoors and were not covered by a smoke-free workplace policy.
The implementation of smoke-free workplaces would produce an absolute smoking prevalence reduction of 3.7%. Thus, a smoke-free workplace policy would lead to a 16.7% decline in indoor workers who smoked.
The quit rate, regardless of a smoke-free workplace policy, was 2.5% per annum. Thus, a smoke-free workplace policy would lead to an additional 14.2% in the quit rate among indoor workers who smoked.
The rate of compliance with smoke-free workplace policies was 90%.
The total number of quitters generated was 10,400.