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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