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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.