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

	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