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Table 4 Risk estimates for daily emergency department presentations

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

Age groups
Emergency categories All ages 0-4 5-14 15-64 65-74 75+
Previous heatwaves
Total 1.01 0.99-1.04 0.96 0.91-1.02 0.98 0.93-1.03 1.03 1.00-1.05 1.03 0.99-1.07 1.03 1.00-1.06
Ischaemic 0.91 0.82-1.01    0.90 0.76-1.06 0.99 0.81-1.20 0.88 0.75-1.03
Respiratory 0.93 0.88-1.00 0.96 0.89-1.04 1.16 0.91-1.46 0.90 0.82-0.98 0.88 0.75-1.03 0.81 0.72-0.91
Mental 1.11 1.04-1.18 1.98 0.78-4.99 0.68 0.41-1.14 1.09 1.02-1.17 1.59 1.22-2.08 1.15 0.93-1.43
Renal 1.01 0.94-1.08 1.30 1.01-1.66 0.81 0.55-1.19 0.96 0.87-1.05 1.14 0.92-1.40 1.02 0.85-1.22
Direct heat 2.68 2.19-3.28 1.58 0.86-2.91 2.29 1.21-4.32 2.99 2.24-3.99 2.60 1.74-3.89 2.73 2.20-3.37
Heatwave in 2008
Total 1.06 1.01-1.10 1.02 0.92-1.13 1.04 0.95-1.14 1.07 1.02-1.12 1.09 1.02-1.15 1.03 0.97-1.08
Ischaemic 0.96 0.81-1.13    0.95 0.72-1.23 1.07 0.77-1.48 0.90 0.69-1.18
Respiratory 1.03 0.93-1.15 1.05 0.89-1.04 1.08 0.70-1.66 0.97 0.83-1.13 1.21 0.96-1.53 1.02 0.85-1.22
Mental 1.05 0.96-1.14 0.56 0.08-4.18 0.96 0.53-1.73 1.04 0.95-1.13 1.24 0.85-1.82 1.15 0.78-1.51
Renal 1.11 0.99-1.23 0.80 0.48-1.32 1.74 1.06-2.85 1.06 0.92-1.22 1.30 0.94-1.79 1.14 0.86-1.53
Direct heat 3.33 2.40-4.62 0.92 0.21-4.27 2.11 0.62-7.23 4.77 3.11-7.30 1.59 0.68-3.72 2.95 2.07-4.18
Heatwave in 2009
Total 1.02 0.98-1.07 0.90 0.85-0.95 0.83 0.74-0.92 1.05 0.99-1.10 1.00 0.94-1.07 1.17 1.11-1.22
Ischaemic 1.03 0.86-1.23 --- --- 1.39 1.08-1.78 0.76 0.49-1.16 0.84 0.61-1.16
Respiratory 0.77 0.68-0.88 0.72 0.62-0.83 0.64 0.36-1.14 0.86 0.73-1.02 0.80 0.61-1.05 0.83 0.68-1.00
Mental 1.04 0.95-1.13 0.62 0.83-4.60 0.96 0.58-1.59 1.05 0.96-1.10 0.66 0.40-1.09 1.18 0.85-1.64
Renal 1.39 1.26-1.54 1.51 1.02-2.23 1.25 0.71-2.21 1.32 1.16-1.50 1.21 0.87-1.71 1.68 1.29-2.10
Direct heat 12.01 9.55-15.12 3.36 1.54-7.30 3.82 1.40-10.40 12.40 8.80-17.40 9.48 6.13-14.65 15.85 12.49-20.12
  1. Incidence rate ratios and 95% confidence intervals (CI) of 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.