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Table 4 Adjusted relative rate (95% confidence interval (CI)) of asthma admission, ED visit or death within 6 to 36 months post index event for the asthma admission and ED cohorts, according to AEC service availability

From: The association of asthma education centre characteristics on hospitalizations and emergency department visits in Ontario: a population-based study

  Admission cohort ED cohort
N = 12 029 N = 63 025
  Relative rate Relative rate
(95% CI) ( 95% CI )
Access to AEC   
  Fulltime extended hours 0.87 (0.71,1.08) 0.78 (0.69,0.90)
  Fulltime regular hours 0.95 (0.74,1.22) 1.13 (0.98,1.30)
  Part-time extended hours 0.90 (0.78,1.03) 0.94 (0.85,1.03)
  Part-time regular hours 0.93 (0.80,1.08) 1.03 (0.84,1.25)
  No AEC 1.00 Reference 1.00 Reference
Sex   
  Male 1.04 (0.95,1.14) 1.14 (1.08,1.20)
Age group (years)   
  2 - 4 0.57 (0.47,0.69) 0.93 (0.85,1.02)
  5 - 9 0.51 (0.41,0.63) 0.81 (0.74.0.90)
  10-14 0.48 (0.39,0.58) 0.69 (0.63,0.76)
  15-19 0.87 (0.68,1.11) 0.93 (0.84,1.04)
  20-24 1.00 Reference 1.00 Reference
  25-29 0.78 (0.62,0.98) 0.91 (0.82,1.00)
  30-39 0.95 (0.74,1.23) 0.89 (0.81,0.98)
  40-55 0.66 (0.53,0.83) 0.86 (0.79,0.94)
Acuity at index event   
  CTAS 1-2 (Highest acuity) Not applicable 1.35 (1.27,1.43)
  CTAS 3 Not applicable 1.00 Reference
Income quintile   
  1 (lowest) 1.40 (1.23,1.59) 1.34 (1.25,1.44)
  2 1.29 (1.13,1.46) 1.18 (1.10,1.27)
  3 1.15 (1.01,1.31) 1.18 (1.10,1.27)
  4 1.06 (0.94,1.20) 1.01 (0.94,1.07)
  5 (highest) 1.00 Reference 1.00 Reference
  Missing 1.72 (1.07,2.77) 0.92 (0.64,1.32)
Rural 1.01 (0.89,1.13) 0.99 (0.91,1.07)
Core primary care services in previous 2 yrs. 0.96 (0.78,1.18) 0.97 (0.88,1.07)
Previously diagnosed asthma 1.35 (1.21,1.50) 2.19 (2.01,2.38)
Specialist asthma visit in previous 2 yrs. 1.14 (1.07,1.22) 1.09 (1.04,1.14)
Asthma admissions in previous 2 yrs. 1.90 (1.67,2.16) 1.52 (1.35,1.72)
Asthma ED visits in previous 2 yrs. 2.47 (2.29,2.67) 2.71 (2.53,2.89)
Hospital type   
  Community 1.01 (0.84,1.22) 1.26 (1.12,1.43)
  Small 0.82 (0.62,1.08) 1.4 (1.18,1.66)
  Teaching 1.00 Reference 1.00 Reference