Skip to main content

Table 3 Impact of Medicare Part D on antidementia prescriptions filled annually among beneficiaries with any antidementia drug use pre-part D (n = 1,197)

From: The impact of Medicare prescription drug coverage on the use of antidementia drugs

Pharmacy benefit group

Mean No. (SD) of pre–Part D prescriptions

Mean No. (SD) of post–Part D prescriptions

Adjusted odds ratio* of pre–Part D vs. post–Part D prescriptions

Comparison of the adjusted odds ratio* of the no-coverage, $150-cap, and $350-cap groups with that of the no-cap group

 

AOR (95% CI)

PValue

AOR (95% CI)

PValue

No coverage group

5.80 (6.26)

10.30 (8.56)

1.76 (1.47-2.10)

<0.0001

1.36 (1.12-1.65)

0.0018

$150 cap group

5.91 (5.85)

8.99 (7.35)

1.51 (1.27-1.80)

<0.0001

1.16 (0.96-1.41)

0.1177

$350 cap group

6.29 (5.99)

9.47 (7.92)

1.49 (1.41-1.58)

<0.0001

1.15 (1.05-1.27)

0.0031

No cap group

8.42 (7.07)

11.04 (8.19)

1.30 (1.20-1.40)

<0.0001

[Reference]

  1. Abbreviations: AOR, adjusted odds ratio CI, confidence interval; SD, standard deviation.
  2. * Analyses were adjusted for sex; age; census-block group-level data concerning race, status below poverty line, residence; health status data (binary variables for congestive heart failure, depression, diabetes, hypertension, and ischemic heart disease); and prospective risk score.