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Table 2 Rates and frequencies of exposure during the follow-up time

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

Variable Group Variable Value
Socio-demographic variables Female; N (%) 193,992 (56.5%)
Age at index date; mean (SD) 30.5 (13.3)
Socioeconomic status; N (%)  
quintile 1 38,501 (11.2%)
quintile 2 52,581 (15.3%)
quintile 3 65,695 (19.1%)
quintile 4 81,610 (23.8%)
quintile 5 102,534 (29.8%)
Unknown/missing 2599 (0.8%)
Type and quality of carefor asthma (measured in the previous year)* Having received pulmonary function test 82,765 (3.2%)
Respirologist consultation 47,957 (1.8%)
Internal medicine consultation 28,501 (1.1%)
Allergist consultation 35,405 (1.3%)
General Practitioner visits  
No visit 1,803,958 (68.8%)
1 visit 452,950 (17.3%)
2 visits 199,816 (7.6%)
More than 2 visits 166,341 (6.3%)
Continuity of care (COC)  
COC = 0 275,396 (10.5%)
COC > 0 and COC < 50% 2,065,128 (78.7%)
COC > =50% and COC < 100% 205,991 (7.9%)
COC = 100% 76,550 (2.9%)
History of asthma hospitalisation 9936 (0.4%)
Ratio of ICS to total asthma medications being more than 50% 776,182 (29.6%)
Use of systemic corticosteroids 330,381 (12.6%)
Comorbidity (measured in the previous year) Modified Charlson score (SD) 0.1 (2.0)
None asthma related outpatient resource use  
< 5 times outpatient service use 543,505 (20.7%)
<=5 and > 10 times outpatient service use 615,599 (23.5%)
<=10 and > 20 times outpatient service use 750,000 (28.6%)
> 20 times outpatient service use 713,961 (27.2%)
Non-asthma related hospitalisation 417,864 (15.9%)
  1. *All exposure variables are ascertained in the preceding follow-up period