Figure 2.

Type of ICS use in 2004 by coverage group and type of ICS use in 2003. Note: Lower-cost ICS Users in 2003 and 2004 were defined as patients with greater use of lower-cost than higher-cost ICS drugs in each year, and vice-versa. Patients were defined as having No ICS Use in 2004 if their total annual ICS days-of-supply was zero.