TABLE 2.
Comparison of Physician-Perceived and Actual Percentage of Adherent Patients Across Part D Medications
| Part D Medications |
Physician-Perceived Percentage of
Adherent Patients, n (%)a n = 226 |
Actual Percentage of
Adherent Patients by Physician, n (%)b n = 226 |
Average PDC Valuesd n = 226 | ||||
|---|---|---|---|---|---|---|---|
| < 50%c | 50%-75% | > 75% | < 50% | 50%-75%c | > 75% | ||
| Statins | 19 (8.4) | 119 (52.6) | 88 (38.9) | 11 (4.8) | 134 (59.2) | 81 (35.8) | 84.0 (±4.7) |
| OADs | 17 (7.5) | 82 (12.1) | 127 (56.1) | 7 (3.0) | 100 (44.2) | 119 (52.6) | 86.6 (±5.3) |
| RAS antagonists | 12 (5.3) | 82 (36.2) | 132 (58.4) | 3 (0.01) | 99 (43.8) | 124 (54.8) | 86.2 (±3.8) |
Note: There was no statistically significant difference between the perceived and actual percentage of adherent patients within each Part D medication.
aReported by physicians in the survey; perceived percentage of adherent patients varied significantly (chi-square test = 21.33, P < 0.05) between the Part D medications.
bCalculated from pharmacy claims of patients with each of the physicians; actual percentage of adherent patients varied significantly (chi-square test = 21.96, P < 0.05) between the Part D medications.
cCategories < 25% and 25%-49% were combined because of low percentage of adherent patients in those categories.
dAverage PDC values were calculated using the sum of PDC values for the patients divided by the number of patients (PDC calculated from pharmacy claims data).
OADs = oral antidiabetic drugs; PDC = proportion of days covered; RAS = renin-angiotensin system.