Table 2.

—Review of Pharmacy Refill Adherence to Lipid-Lowering Therapy, by Medication Type

	Subjects, No.	PDC, Mean (SD)
Adherence to lipid-lowering therapy	117	80.1 (22.4)
Prescribed simvastatin alone	81	79.2 (23.0)
Prescribed atorvastatin, rosuvastatin, lovastatin, or fluvastatin	18	79.3 (21.3)
Prescription switched among statin drugs (simvastatin, atorvastatin, rosuvastatin, lovastatin, fluvastatin)	5	78.8 (31.6)
Prescribed a statin and a non-statina lipid-lowering drug	10	89.3 (16.7)
Prescription of a non-statina lipid-lowering medication exclusively	3	83.7 (12.4)

Pharmacy refill adherence is measured as the PDC or the percent of d with a lipid-lowering medication available divided by the total number of d on drug therapy during the total d on therapy in the 1-y exposure window before CPAP initiation. Analysis of variance for difference among groups, P = .75. A statin is defined as a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor. PDC = proportion of days covered. See Table 1 for expansion of other abbreviation.

^aColestipol, gemfibrozil, or ezetimibe.