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Table 1 Annual incidence rates of ER visits for three specific diagnostic groups.

From: Emergency room visits for respiratory conditions in children increased after Guagua Pichincha volcanic eruptions in April 2000 in Quito, Ecuador Observational Study: Time Series Analysis

   Age groups
   0 – 4 5 – 9 10 – 15 all ages
Population serveda     
  females 49860 50964 61267 162091
  males 51332 52160 61709 165201
Annual rateb     
  females 32.83c 8.37 2.57 13.70
  males 42.43 11.38 2.88 17.85
Annual rate of AURI     
  females 16.02 3.21 0.92 6.28
  males 21.39 4.37 0.78 8.32
Annual rate of ALRI     
  females 15.53 3.36 1.00 6.21
  males 19.47 4.72 1.19 7.98
Annual rate of Asthma     
  females 1.11 1.78 0.64 1.14
  males 1.43 2.24 0.90 1.49
  1. a Values are estimated from the Census 2000, Ecuador. b Annual rates are estimated per 1000 children served by the Baca Ortiz Hospital. cEstimated as: (number of cases/population served) × 1000