Table 3

 Percentage change* in all cause, cardiovascular, and respiratory mortality in Launceston and Hobart, Tasmania, from January 1994-May 2001 to June 2001-November 2007. Years 2001-07 correspond with period of improved air quality after series of coordinated interventions in Launceston

Launceston (intervention)Hobart (control)
Percent change (95% CI)P valuePercent change (95% CI)P value
All year—males and females combined
All cause mortality−2.7 ( −8.7 to 3.7)0.401.4 (−3.0 to 6.0)0.54
Cardiovascular mortality−4.9 ( −15.5 to 7.0)0.400.9 (−7.1 to 9.6)0.83
Respiratory mortality−8.5 ( −23.2 to 9.0)0.324.8 (−7.4 to 18.6)0.50
All year­—males
All cause mortality−11.4 (−19.2 to −2.9)0.010.7 (−5.4 to 7.2)0.82
Cardiovascular mortality−17.9 (−30.6 to −2.8)0.02−7.1 (−16.8 to 3.8)0.19
Respiratory mortality−22.8 (−40.6 to 0.3)0.053.4 (−13.1 to 24.4)0.67
All year—females
All cause mortality2.7 (−5.3 to 11.4)0.52−0.7 (−6.3 to 5.2)0.80
Cardiovascular mortality2.3 (−12.2 to 19.3)0.773.6 (−7.6 to 16.2)0.54
Respiratory mortality1.0 (−18.9 to 24.4)0.96−1.4 (−15.5 to 15.1)0.86
Wintertime—males and females combined
All cause mortality2.2 (−14.1 to 11.3)0.73−2.0 (−10.2 to 6.9)0.64
Cardiovascular mortality−19.6 ( −36.3 to 1.5)0.06−7.0 (−20.8 to 9.2)0.38
Respiratory mortality−27.9 (−49.5 to 3.1)0.078.0 (−16.9 to 40.4)0.60

*Adjusted for age structure, meteorological conditions, and secular mortality trends in Tasmania.