Table II.
Summary Statistics of Pre-PhMA (ng/ml) in 369 Urine Samples Classified by 2CyEMA (≥7.32ng/mL) Determined Smoking Status
| Sample type | N | Geometric mean | Upper range | Detection frequency (%) |
|---|---|---|---|---|
| Non-smoking | 40 | NRa | 2.23 | 5.0 |
| Smoking | 329 | 8.95 | 378 | 89.7 |
Not reported: the proportion of results below the limit of detection was too high to provide a valid result.