Table 2.
Self-reported and biochemically determined medication adherence by the number of antihypertensives prescribed (n = 191).
| Number of antihypertensives prescribed | Self-reported adherence | Biochemically determined adherence | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All medications | At least 1 but not all medications | No medications | All medications | At least 1 but not all medications | No medications | |||||||
| Number | % | Number | % | Number | % | Number | % | Number | % | Number | % | |
| Overalla | 163 | 85.8% | 9 | 4.7% | 18 | 9.5% | 182 | 95.3% | 8 | 4.2% | 1 | 0.5% |
| 1 Antihypertensive | 76 | 92.7% | 0 | 0.0% | 6 | 7.3% | 82 | 100.0% | 0 | 0.0% | 0 | 0.0% |
| 2 Antihypertensives | 49 | 79.0% | 5 | 8.1% | 8 | 12.9% | 59 | 95.2% | 2 | 3.2% | 1 | 1.6% |
| 3 Antihypertensivesa | 28 | 84.8% | 3 | 9.1% | 2 | 6.1% | 31 | 91.2% | 3 | 8.8% | 0 | 0.0% |
| ≥4 Antihypertensives | 10 | 76.9% | 1 | 7.7% | 2 | 15.4% | 10 | 76.9% | 3 | 23.1% | 0 | 0.0% |
a1 Participant did not report whether they had taken their pills that day.