Table 2.
Comparison of percent adherence values calculated from raw and adjusted medication event monitoring system (MEMS) data
| Adherence Variables | Mean (SD) % | Median (IQR) % | P-valuea | Multiple Comparisonb |
|---|---|---|---|---|
| Raw | 91.2 (22.5) | 101.6 (91.9–103.2) | A | |
| Cleaned | 89.5 (22.5) | 100.0 (90.3–101.6) | < 0.001 | B |
| Capped | 87.7 (22.1) | 98.4 (87.1–100) | < 0.001 | C |
| Clean-capped | 88.7 (22.0) | 100 (90.3–100) | < 0.001 | C |
a
Wilcoxon signed-rank test,
b
Kruskal-Wallis/Dunn’s test for all comparisons between raw, cleaned, capped, and clean-capped percent adherence values. All pair-wise comparisons occur simultaneously. Letters indicate significant differences. A- raw is different from cleaned, capped and clean-capped. B-cleaned is different from capped. C-capped is not different from clean-capped.