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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.