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Table 4 Geographical distribution of residential locations of patients visited emergency room visits at two periods.

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

   Pre and post eruption (334 days) During eruption (28 days)   
Region Parishes Total cases Cases per day Total cases Cases per day Ratio Percentage
City of Quito (n = 405,206) a       
Turubamba (South) 443 1.33 85 3.04 2.29 11
  Guamani 64 0.19 8 0.29 1.49 2
  Chillogallo 219 0.66 43 1.54 2.34 5
  Las Cuadras 120 0.36 26 0.93 2.58 3
  El Beaterio 40 0.12 8 0.29 2.39 1
Urinsaya (South Central) 902 2.70 173 6.18 2.29 22
  Villaflora 333 1.00 69 2.46 2.47 8
  La Magdalena 140 0.42 25 0.89 2.13 3
  Chimbacalle 141 0.42 24 0.86 2.03 3
  Eloy Alfaro 288 0.86 55 1.96 2.28 7
Yavirac (North Central) 1095 3.28 234 8.36 2.55 28
  San Roque 321 0.96 64 2.29 2.38 8
  Santa Prisca 180 0.54 36 1.29 2.39 5
  EL Batan 66 0.20 14 0.50 2.53 2
  San Blas 528 1.58 120 4.29 2.71 14
Anansaya (North) 936 2.80 162 5.79 2.06 23
  La Concepcion 168 0.50 24 0.86 1.70 4
  Cotocollao 201 0.60 43 1.54 2.55 5
  Carcelen 333 1.00 53 1.89 1.90 8
  El Inca 234 0.70 42 1.50 2.14 6
Quito suburbs (n = 136,466)a 422 1.26 108 3.86 3.05 11
  Valle Tumabco (East) 79 0.24 24 0.86 3.62 2
  San Antonio (North) 48 0.14 11 0.39 2.73 1
  Calderon (North East) 159 0.48 41 1.46 3.08 4
  Valle de los Chillos (South East) 136 0.41 32 1.14 2.81 4
  Amaguana (South) 10 0.03 2 0.07 2.39 0.3
Outside of Quito Metropolitan Area 169 0.51 45 1.61 3.18 4
  Total geocoded cases 3977 11.91 809 28.89 2.43 100
  1. athe numbers in parenthesis represent the population of children under 15 years of age.