Table 4.
Patient or Claim Characteristic † | Adherence, expressed as absolute percent change in proportion of days covered | P value | |
---|---|---|---|
|
-8% |
<0.0001 |
|
Medication class – inhaled steroid |
-49% |
<0.0001 |
|
Zip code-based estimates of patients’ annual income‡ |
|
||
$45 k – $75 k |
6% |
<0.0001 |
|
> $75 k |
8% |
<0.0001 |
|
Medication dosing frequency greater than once daily | -4% | <0.0001 |
*Variables without association, and therefore not used as predictors in this model, are: patient age, gender, history of depression (as evidenced by prior use of antidepressants), and patient race (as estimated from zip code data).
†The referent categories were as follows: angiotensin receptor blocker medication class, annual income < $45 k annually, and medication dosing less than or equal to once daily.
‡Estimated based on zip code data. 336 claims were excluded from this analysis due to missing zip code data.