Table 1

Percentage change in prevalence rates from clean air laws with no prior policies

Year	BAU (%)	WP (% change)	WP partial (% change)	Restaurant (% change)	Other places (% change)	Schools (% change)	All policies (% change)
2000	18.5	−2.3	−0.7	−0.7	−0.3	0.0	−3.3
2001	18.4	−4.2	−1.4	−1.2	−0.6	−0.1	−6.1
2002	18.3	−6.0	−2.0	−1.8	−0.9	−0.1	−7.1
2003	18.2	−6.0	−2.0	−1.8	−0.9	−0.1	−7.2
2004	18.1	−6.0	−2.0	−1.8	−0.9	−0.1	−7.4
2005	18.0	−6.1	−2.1	−1.8	−0.9	−0.1	−7.5
2010	17.6	−6.3	−2.1	−1.9	−0.9	−0.2	−8.1
2015	17.1	−6.6	−2.2	−2.0	−1.0	−0.2	−8.7
2020	16.6	−6.7	−2.3	−2.1	−1.0	−0.3	−9.2
2025	16.0	−6.9	−2.4	−2.2	−1.1	−0.3	−9.7
2030	15.5	−7.1	−2.4	−2.3	−1.1	−0.4	−10.1
2035	15.2	−7.2	−2.5	−2.3	−1.1	−0.4	−10.5
2040	15.0	−7.3	−2.5	−2.3	−1.1	−0.5	−10.8

Percent change = (BAU prevalence rate − prevalence rate under policy)/BAU prevalence rate.
BAU, business as usual; WP, workplace.