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Proportion of generic warfarin copayment amounts in the cross-sections per year (2003-2009)
| Copayment Amount, % | 2003 (N=51,701)* | 2004 (N=72,779)* | 2005 (N=98,825)* | 2006 (N=100,203)* | 2007 (N=111,371)* | 2008 (N=189,870)* | 2009 (N=195,234)* |
|---|---|---|---|---|---|---|---|
| $0.00 | 10.03 | 10.39 | 9.93 | 13.24 | 15.57 | 18.92 | 20.57 |
| $4.00 per 30 day supply | 1.03 | 1.22 | 0.22 | 0.89 | 3.96 | 8.20 | 8.80 |
| $10.00 per 90 day supply | 11.24 | 12.30 | 12.70 | 12.12 | 10.73 | 12.70 | 17.11 |
Number of total prescriptions for generic warfarin filled per year
