The original version of this article unfortunately contains mistakes. 1. On page 315, in the last sentence under the "Tobacco Use" subheading, the percentage should read "59.3%" rather than "55.6%". 2. On page 315, in the last sentence under the "Secondhand Smoke Exposure" subheading, the percentage "28.2%" should read "28.6%". 3. The presentation of "Post-policy" and "Pre-policy" terms in the Figs. 1 and 3 were incorrect. It should be read as: Figure 1: Pre-policy (n = 27); Post-policy (n = 16). Figure 3: Pre-policy (n = 55); Post-policy (n = 42). The corrected Figs. 1 and 3 are given below.