Distribution of incident out-of-hospital sudden circulatory arrest (SCA) cases over three time periods*
| Pre-ban 104 weeks | Post-ban 1 235 weeks | Post-ban 2 96 weeks | Total | |
| Confident SCA cases | 437 | 883 | 357 | 1677 |
| Subjects found dead | 85 | 320 | 124 | 529 |
| Ambiguous SCA cases | ||||
| Included | 31 | 48 | 20 | 99 |
| Excluded | 21 | 60 | 22 | 103 |
↵* The pre-ban period, in which no smoking ban was operative (1 January 2002–1 January 2004); the first post-ban period, in which the workplace smoking ban came into effect (1 January 2004–1 July 2008) and the second post-ban period, in which both smoking bans were operative (1 July 2008–1 May 2010).