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Table 5 Impact of medicare part d on antidementia prescriptions filled annually among beneficiaries with a dementia diagnosis pre-part D (n = 3,088)

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

Group based on coverage of drugs in the insurance plan

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

1.61 (4.26)

3.88 (7.04)

2.47 (1.99-3.07)

<0.0001

1.80 (1.42-2.27)

<0.0001

$150-cap group

1.75 (4.20)

3.08 (5.99)

1.77 (1.42-2.20)

<0.0001

1.29 (1.02-1.63)

0.0341

$350-cap group

2.34 (4.79)

3.94 (6.86)

1.67 (1.57-1.79)

<0.0001

1.22 (1.09-1.36)

0.0004

No-cap group

3.30 (6.15)

4.66 (7.56)

1.37 (1.26-1.50)

<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.