Themes | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | Total |
Health | 10 | 23 | 13 | 28 | 31 | 40 | 134 | 185 | 71 | 535* |
Government law/policy/regulation | 7 | 1 | 3 | 4 | 10 | 13 | 17 | 21 | 127 | 203* |
Tobacco prevention/cessation program | 18 | 9 | 4 | 21 | 11 | 26 | 54 | 71 | 72 | 286* |
Affiliated organisation news | 2 | 1 | 2 | 4 | 5 | 11 | 24 | 32 | 96 | 177* |
Negative social effects | 1 | 1 | 1 | 3 | 4 | 10 | 10 | 21 | 27 | 78* |
Other | 5 | 1 | 3 | 11 | 7 | 21 | 12 | 11 | 16 | 87* |
Total | 43 | 36 | 26 | 71 | 68 | 121 | 251 | 341 | 409 | 1366* |
↵* Poisson heterogeneity test p<0.001.