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Table 3 Factors associated with inappropriate and excessive use of SABA

From: Predictors of inappropriate and excessive use of reliever medications in asthma: a 16-year population-based study

   Inappropriate use Excessive use
Group Variable Odds Ratio 95% CI P value Odds Ratio 95% CI P value
(Lower, Upper) (Lower, Upper)
Socio-demographic Sex (female = 1) 0.67 0.65–0.68 <.0001 0.50 0.47–0.54 <.0001
Higher SES 0.97 0.96–0.97 <.0001 0.92 0.91–0.94 <.0001
Year 0.98 0.98–0.98 <.0001 0.99 0.98–0.99 <.0001
Age (per 10 years increase) 1.05 1.05–1.06 <.0001 1.36 1.33–1.39 <.0001
Type & quality of care for asthma Having received pulmonary function test 0.86 0.82–0.89 <.0001 0.90 0.83–0.98 0.0006
Respirologist consultation 0.70 0.66–0.75 <.0001 1.18 1.07–1.31 <.0001
Internal medicine consultation 0.69 0.65–0.74 <.0001 1.06 0.95–1.18 0.317
Allergist consultation 0.48 0.45–0.51 <.0001 0.34 0.28–0.41 <.0001
General Practitioner visits       
No visit
1 visit PY 1.24 1.22–1.26 <.0001 1.58 1.51–1.66 <.0001
2 visits PY 1.29 1.27–1.32 <.0001 2.46 2.33–2.61 <.0001
More than 2 visits 1.73 1.69–1.77 <.0001 7.24 6.8–7.71 <.0001
Continuity of care (COC)       
COC = 0
COC > 0 and COC < 50% 0.73 0.71–0.75 <.0001 0.92 0.85–0.99 0.0275
COC > =50% and COC < 100% 0.77 0.75–0.8 <.0001 0.94 0.85–1.03 0.1953
COC = 100% 0.82 0.79–0.85 <.0001 0.96 0.84–1.08 0.4703
  Asthma-related hospitalisation 1.46 1.34–1.58 <.0001 1.48 1.33–1.65 <.0001
Appropriate use of ICS 0.10 0.10–0.11 <.0001 0.09 0.09–0.10 <.0001
Systemic corticosteroid 0.61 0.60–0.63 <.0001 1.80 1.72–1.90 <.0001
Comorbidity-related variables Modified Charlson score (SD) 0.99 0.97–1.00 0.1371 0.95 0.91–1.00 0.0201
None asthma related outpatient resource utilisations       
< 5 times
<=5 and > 10 times 0.77 0.76–0.79 <.0001 0.84 0.79–0.89 <.0001
<=10 and > 20 times 0.68 0.67–0.7 <.0001 0.79 0.74–0.85 <.0001
> 20 times 0.63 0.61–0.65 <.0001 0.81 0.75–0.88 <.0001
None asthma related hospitalisation 1.09 1.07–1.11 <.0001 1.33 1.27–1.39 <.0001
  1. Entire covariates have been simultaneously included in the regression model