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Table 2 Impact of Medicare Part D on antidementia prescriptions filled annually

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

Pharmacy benefit group Proportion with any use pre–Part D Proportion with any use post–Part D Adjusted odds ratio* of pre–Part D vs. post–Part D drug use 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 0.02 (0.14) 0.04 (0.20) 2.19 (1.85-2.59) <0.0001 1.38 (1.14-1.66) 0.0008
$150 cap group 0.03 (0.16) 0.05 (0.21) 1.80 (1.52-2.13) <0.0001 1.13 (0.94-1.37) 0.1939
$350 cap group 0.03 (0.16) 0.05 (0.21) 1.71 (1.61-1.82) <0.0001 1.07 (0.97-1.19) 0.1626
No cap group 0.03 (0.17) 0.05 (0.21) 1.59 (1.47-1.72) <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.