TABLE 1—
Change in Proportions of Cost-Related Nonadherence (CRN): United States Adults, 2013–2015
| Cost-Related Nonadherence Measures | 2013, Estimated No.a (%) | 2015, Estimated No.a (%) | Change Between 2013 and 2015, % |
| In the past 12 mo, did you | |||
| Not fill a prescription because you couldn’t afford it? | 18.4 (7.8) | 15.2 (6.4) | −18.8*** |
| Delay filling a prescription to save money? | 15.3 (6.5) | 12.0 (4.9) | −23.5*** |
| Take less medicine than prescribed to save money? | 12.0 (5.0) | 9.8 (4.1) | −18.7*** |
| Skip medication doses to save money? | 11.3 (4.7) | 9.2 (3.8) | −19.9*** |
| Any CRN: yes to 1 or more of the above questions | 26.5 (11.2) | 22.0 (9.1) | −18.8*** |
Source. 2013 and 2015 Sample Adult and Core National Health Interview Surveys (2015).
a
Numbers in millions.
***
P < .001; P values determined by Wald χ2.