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Spearman Correlation Coefficients for Pharmacologic and Nonpharmacologic Adherence Measurements Across All Person-Visits, Excluding Study Week 4
| Adherence metric | Hair TFV | Hair FTC | DBS TFV-DP | DBS FTC-TP | Self-report |
|---|---|---|---|---|---|
| Self-report | 0.28a | 0.29a | 0.39a | 0.40a | |
| Wisepill | 0.40a | 0.36a | 0.58a | 0.36a | 0.25a |
Abbreviations: DBS, dried blood spot; FTC, emtricitabine; FTC-TP, emtricitabine-triphosphate; TFV, tenofovir; TFV-DP, tenofovir-diphosphate.
a P < .001 for all correlations.
