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. 2013 Mar;14(2):79–84. doi: 10.5811/westjem.2012.10.6917

Table 1.

Number of emergency department visits for selected respiratory disease indicator – October 1 to November 6, 2007.

Pre-fire period* Fire period*
No. of visits Mean per day % visits Peak no. of visits Total no. of visits Mean per day % visits Peak no. of visits Excess no. of visits per day^ P-value§
Chief complaint
  Cough 57 3.8 1.19 9 53 4.4 1.46 12 0.6 0.2766
  Dyspnea 264 17.6 5.51 26 250 20.8 6.91 31 3.2 0.0105
  Asthma 46 3.1 0.96 9 55 4.6 1.52 12 1.5 0.0211
Diagnosis codes
  Respiratory syndrome 939 62.6 4.78 71 751 62.6 4.98 98 0 0.3963
  Asthma 230 15.3 1.17 23 215 17.9 1.43 35 2.6 0.0377
  Bronchitis 49 3.3 0.2 7 52 4.3 0.34 8 1.1 0.1034
  COPD 153 10.2 3.2 18 115 9.6 3.2 13 −0.6 0.6236

COPD, chronic obstructive pulmonary disease

*

Pre-fire period includes the 15 weekdays during October 1-October 20, 2007.

+

Fire period includes the 12 weekdays during October 21-November 6, 2007.

^

Mean number of visits during fire period minus mean number of visits during pre-fire period.

§

Loglinear models.