Int. J. Environ. Res. Public Health 2011, 8 427 Table 5. Prevalence and introduction of smoke-free worksites by socioeconomic status and country. Low Canada Mod. High All Low United States Mod. High Socioeconomic Status United Kingdom b All Low Mod. High All Low Australia Mod. High Variables Wave 5 a Current Smokers Total ban Partial None n Former Smokers Total ban Partial None n Wave 6 a Current Smokers Total ban Partial None n Former Smokers Total ban Partial None n 75.7 17.4 6.9 87.7 3.5 8.8 72.4 19.4 8.2 71.4 21.4 7.2 83.2 13.4 3.4 98.7 0.0 1.3 79.3 16.9 3.8 92.6 7.4 0.0 85.8 12.0 2.2 100 0.0 0.0 88.6 10.0 1.4 90.0 10.0 0.0 71 9 86.4 9.8 3.8 84.8 6.7 8.5 85.1 8.9 6.0 86.8 13.2 0.0 91.8 7.2 1.0 91.9 7.0 1.1 87.0 11.1 1.9 84.8 6.1 9.1 88.2 9.1 2.7 1,070 * 88.5 6.5 5.0 86.4 10.1 3.5 86.4 9.9 3.7 67.5 21.2 11.3 130 82.4 5.9 11.7 73.9 18.5 7.6 100 0.0 0.0 94 2 131 566 373 500 298 928* 108 532 256 896 123 293 10 96 78 184 13 53 62 128 22 100 65 187* 19 90 258 271 320 662 235 313 642 310 235 615 28 33 70 26 29 57 39 43 94* 76.8 16.7 6.5 92.7 2.0 5.3 75.9 18.1 6.0 83.0 13.6 3.4 74.2 16.5 9.3 68.2 18.2 13.6 94.9 5.1 0.0 66.7 25.0 8.3 70 12 75.8 19.1 5.1 77.6 18.7 3.7 95.4 4.3 0.3 97.5 0.0 2.5 80.3 16.4 3.3 90.0 7.1 2.9 97.4 1.5 1.1 89.6 10.4 0.0 77.0 18.0 5.0 80.9 14.6 4.5 96.1 3.3 0.6 90.0 8.0 2.0 77 5 88.0 11.1 0.9 93.3 6.7 0.0 84.5 8.5 7.0 100 0.0 0.0 83.7 12.6 3.7 646 90.6 5.6 3.8 149 84.9 9.1 6.0 358 83.7 9.3 7.0 47 All 86.3 10.2 3.5 1,062 * 92.2 4.8 3.0 86.5 7.5 6.0 87.5 6.7 5.8 91.6 4.5 3.9 94.7 3.2 2.1 89.0 5.2 5.8 89.2 5.4 5.4 295 730 40 92