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Table 2 Percent changes of risks on emergency department visits and emergency ambulance dispatches for high temperature in Pudong, May-September (2011–2013)

From: Effects of temperature and heat waves on emergency department visits and emergency ambulance dispatches in Pudong New Area, China: a time series analysis

Linear variables

Percent changes (%) (95% CI)

 

Emergency department visits

Emergency ambulance dispatches

Temperaturea

0.60(0.53 ~ 0.66)

1.25(0.97 ~ 1.53)

Heat90b,c

0.92(−0.08 ~ 1.93)

6.03(2.03 ~ 10.18)

Heat95b,c

−4.06(−4.97 ~ −3.14)

−1.48(−5.33 ~ 2.52)

Heat99b,c

−6.51(−8.40 ~ −4.59)

8.79(0.37 ~ 17.92)

  1. amodel controlled for day of the year, day of week and calendar year; daily mean temperature applied as a linear term.
  2. bdefinitions of heat (heat90, heat95, heat99): days at temperatures above the 90th (29.67°C), 95th (30.70°C) and 99th (33.05°C) percentile daily mean temperature respectively.
  3. cRisks on heat days compared with non-heat days; model controlled for day of the year, day of week and calendar year; daily mean temperature included into the model as a spline term.
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Environmental Health

ISSN: 1476-069X