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Table 2 Risk estimates for daily ambulance call-outs.

From: Impact of two recent extreme heat episodes on morbidity and mortality in Adelaide, South Australia: a case-series analysis

Age groups
Ambulance call-out categories All ages 0-4 5-14 15-64 65-74 75+
Previous heatwaves
total ambulance 1.04 1.02-1.07 1.04 0.96-1.12 0.98 0.91-1.06 1.08 1.04-1.11 1.03 0.99-1.06 1.02 0.99-1.05
cardiac 0.98 0.95-1.02 1.12 0.80-1.57 0.64 0.26-1.58 1.02 0.95-1.08 1.02 0.95-1.10 0.94 0.89-1.00
respiratory 1.00 0.95-1.04 1.03 0.86-1.24 1.47 1.13-1.91 1.02 0.93-1.11 0.95 0.85-1.06 0.95 0.88-1.02
neurological 1.01 0.97-1.05 1.07 0.90-1.28 0.86 0.67-1.11 1.03 0.98-1.08 1.02 0.90-1.17 0.96 0.89-1.05
Heatwave in 2008
total ambulance 1.10 1.03-1.17 1.09 0.87-1.35 1.13 0.92-1.37 1.12 1.03-1.21 1.13 1.03-1.24 1.04 0.97-1.13
cardiac 1.10 1.01-1.20 --- --- 1.16 1.01-1.34 1.18 0.98-1.43 1.02 0.89-1.16
respiratory 1.06 0.94-1.19 1.18 0.76-1.86 0.78 0.40-1.50 1.32 1.08-1.61 0.87 0.63-1.18 0.97 0.80-1.17
neurological 1.08 0.99-1.19 1.05 0.68-1.61 0.61 0.28-1.30 1.06 0.94-1.20 1.39 1.01-1.91 1.11 0.90-1.36
Heatwave in 2009
total ambulance 1.16 1.08-1.24 1.08 0.86-1.36 0.86 0.68-1.08 1.14 1.04-1.24 1.11 1.01-1.23 1.24 1.15-1.34
cardiac 1.13 1.03-1.23 --- --- 1.16 0.99-1.35 1.06 0.86-1.31 1.13 0.10-1.29
respiratory 0.88 0.77-1.01 1.05 0.67-1.64 0.64 0.22-1.90 1.16 0.93-1.45 0.78 0.55-1.10 0.73 0.59-0.92
neurological 1.02 0.92-1.12 0.94 0.59-1.49 0.98 0.56-1.72 1.00 0.88-1.14 1.35 0.97-1.89 0.98 0.78-1.24
  1. Incidence rate ratios and 95% confidence intervals (CI) for the effects of previous heatwaves, the 2008 and the 2009 heatwave, by age groups and health-specific effects. Empty cells indicate insufficient data to produce reliable estimates.