Table 5.

Factors Associated with Discontinuation

Variable	Hazard Ratio (95% Confidence Interval)
Primary prevention group	1.24 (1.08 to 1.43)
Age, years *	0.99 (0.98 to 0.99)
Gender, female	1.18 (1.04 to 1.35)
Race, African-American †	1.43 (1.17 to 1.74)
Cardiologist visits per year *	1.07 (1.03 to 1.10)
LDL tests per year *	1.03 (1.01 to 1.05)
Multiple brands or strengths tried	0.48 (0.42 to 0.55)
Copay, $10 to <$20‡	1.39 (1.19 to 1.63)
Copay, $20 or greater ‡	4.30 (3.39 to 5.44)
Average days supply, 35 to <65§	1.60 (1.24 to 2.06)
Average days supply, 65 or greater §	2.79 (2.46 to 3.09)

^* For each additional unit.

^† Compared with patients who self-identified as “white”.

^‡ Compared with an average monthly prescription copayment of less than $10.

^§ Compared with an average days supply per prescription of less than 35.