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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.