Table 2.

Knowledge of Drug Cost Sharing Structures: Self-Reported Structure Compared to Actual Structure^*

	Actual Cost Sharing Structure
Self-Reported Cost Sharing Structure	None (No Cost) (%)	One-Tiered Copay/ No Cap (%)	Two-Tiered Copay/ No Cap (%)	Two-Tiered Copay/Cap (%)	Total (%)
None (no cost)	85.9	4.5	2.3	2.9	8.6
One-tiered copay/no cap	7.1	68.1	36.5	16.2	42.1
Two-tiered copay/no cap	0.3	17.6	47.3	8.3	32.2
One-tiered copay/cap	6.7	3.7	5.5	17.4	6.0
Two-tiered copay/cap	0.0	0.2	4.0	47.4	6.1
No response	0.0	6.0	4.4	8.0	4.9
Total	100.0	100.0	100.0	100.0	100.0

^*Percentages who reported each type of behavioral response or category, weighted for sampling proportions.

One-tier refers to a single copayment amount for prescription drugs; two-tier refers to one copayment amount for generic drugs and another copayment amount for brand-name drugs. Cap refers to an annual drug benefit cap, above which patients pay for the full price of their drugs. There was no actual plan available with one-tiered copayand cap. No response refers to participants who reported that they did not know how much they had to pay and could not guess.