Table 1.
Agreement between self-reported standard drinks assessed over 4 days and ethyl glucuronide immunoassay results across 5 subjects.
| Self-reported Standard Drinks | EtG* & Self- | |||||||
|---|---|---|---|---|---|---|---|---|
| Subject | Sample Number |
Day 4 | Day 3 | Day 2 | Day 1 | EtG* Result |
BAC† | Report Agreement |
| 1 | 1 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree |
| 2 | 0.00 | 0.00 | 0.00 | 2.80 | + | 0.00 | Agree | |
| 3 | 0.00 | 4.00 | 4.00 | 4.00 | + | 0.00 | Agree | |
| 4 | 0.00 | 0.00 | 0.00 | 20.00 | + | 0.00 | Agree | |
| 5 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree | |
| 6 | 2.80 | 0.00 | 0.00 | 0.00 | − | 0.00 | EtG did not detect self-reported use |
|
| 7 | 5.60 | 5.60 | 0.00 | 0.00 | − | 0.00 | EtG did not detect self-reported use |
|
| 2 | 1 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree |
| 2 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree | |
| 3 | 0.00 | 0.00 | 0.00 | 2.80 | + | 0.00 | Agree | |
| 4 | 0.00 | 0.00 | 2.80 | 0.00 | + | 0.00 | Agree | |
| 5 | 0.00 | 0.00 | 2.80 | 0.00 | − | 0.00 | EtG did not detect | |
| 6 | 0.00 | 0.00 | 0.00 | 0.00 | + | 0.00 | EtG detected use not self-reported |
|
| 7 | 0.00 | 0.00 | 0.00 | 0.00 | + | 0.00 | EtG detected use not self-reported |
|
| 3 | 1 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree |
| 2 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree | |
| 3 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree | |
| 4 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree | |
| 5 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree | |
| 6 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree | |
| 7 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree | |
| 4 | 1 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree |
| 2 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree | |
| 3 | 0.00 | 0.00 | 0.00 | 0.00 | − | 0.00 | Agree | |
| 4 | 0.00 | 4.00 | 3.00 | 0.00 | + | 0.00 | Agree | |
| 5 | 1 | 0.00 | 0.00 | 1.60 | 1.60 | + | 0.00 | Agree |
| 2 | 1.60 | 1.60 | 4.20 | 4.20 | + | 0.00 | Agree | |
| 3 | 4.20 | 2.00 | 1.60 | 0.00 | + | 0.00 | Agree | |
| 4 | 1.60 | 0.00 | 1.60 | 1.60 | − | 0.00 | EtG did not detect self-reported use |
|
| 5 | 0.00 | 0.00 | 1.60 | 1.60 | − | 0.00 | EtG did not detect self reported use |
|
*
Note: EtG: Ethyl Glucuronide
†
Note: BAC = Blood Alcohol Concentration