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Summary of DBS robustness study results.
| Excursion | Hour(s) | Mean bias (%) | na | Categorical agreement (%) | n |
|---|---|---|---|---|---|
| Winter | 56 | 6.0 | 58 | 97.4 | 76 |
| Summer | 56 | − 0.5 | 57 | 97.4 | 76 |
| Alternate drying times | 0 | − 32.5 | 12 | 95.0 | 20 |
| 1 | 1.3 | 12 | 95.0 | 20 | |
| 22 | 1.3 | 12 | 100.0 | 20 | |
| Humid drying | 1 | − 13.3 | 12 | 95.0 | 20 |
| 3 | − 22.2 | 12 | 95.0 | 20 | |
| 22 | − 44.6 | 12 | 95.0 | 20 | |
| Contamination | |||||
| Alcohol exposure | − 11.0 | 13 | 100.0 | 20 | |
| Pressing finger to card | 1.3 | 14 | 95.0 | 20 | |
aResults below LOD were excluded from bias analysis.
