Table 2

Lagged effect of temperature on CVD among all ages and those aged >65 years in Brisbane, 1996–2004

Lag days	Hot effects (≥24°C)	Cold effects (<24°C)
Lag days	Overall % increase^† (95% CI)	Overall % increase^‡ (95% CI)
All CVD
0–1	3.5 (0.4 to 6.7)^*	0.1 (−1.0 to 1.2)
0–7	3.0 (−1.8 to 8.1)	0.6 (−1.2 to 2.4)
0–15	4.5 (−1.7 to 11.0)	2.8 (0.5 to 5.1)^*
0–21	8.4 (1.1 to 16.2)^*	3.2 (0.6 to 5.9)^*
0–30	7.4 (−0.6 to 15.9)	3.4 (0.6 to 6.3)^*
CVD₆₅₊
0–1	3.7 (0.4 to 7.1)^*	0.1 (−1.0 to 1.2)
0–7	2.5 (−2.7 to 7.8)	1.0 (−0.8 to 3.0)
0–15	3.3 (−3.1 to 10.2)	3.1 (0.7 to 5.7)^*
0–21	8.0 (0.3 to 13.2)^*	3.2 (0.4 to 6.2)^*
0–30	6.0 (−2.3 to 15.0)	3.2 (0.1 to 6.5)^*

↵* p<0.05.
↵† Percentage increase with temperature increase of 1°C above 24°C.
↵‡ Percentage increase with temperature decrease of 1°C below 24°C.
CVD, deaths from cardiovascular diseases; CVD₆₅₊, deaths from cardiovascular diseases in those aged ≥65 years.