Table 3.
Knowledge of Drug Cost Sharing Amounts: Self-Reported Copayment Compared to Actual Copayment*
| Generic Copayment | Brand-Name Copayment | |||||
|---|---|---|---|---|---|---|
| All Participants (%) | Age <65 (%) | Age 65+ (%) | All Participants (%) | Age <65 (%) | Age 65+ (%) | |
| Overestimated by >$5 | 10.7 | 10.7 | 10.7 | 7.6 | 7.1 | 9.8 |
| Overestimated by $1–5 | 14.0 | 14.7 | 10.3 | 9.1 | 10.1 | 3.9 |
| Exactly correct | 65.2 | 63.8 | 71.8 | 40.5 | 39.6 | 45.0 |
| Underestimated by $1–5 | 9.6 | 10.2 | 6.9 | 21.3 | 23.1 | 12.4 |
| Underestimated by >$5 | 0.5 | 0.6 | 0.3 | 21.6 | 20.1 | 28.9 |
| Total | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
*
Percentages who reported each type of behavioral response or category, weighted for sampling proportions.