Comparison of neat versus preservative-fixed urine using the Abbott RealTime (ART) assay and the Roche Cobas 4800 (RC) assay for high-risk human papillomavirus detection
| Neat positive | Neat negative | Total | |
| ART assay | |||
| Preservative positive | 19 | 3 | 22 |
| Preservative negative | 2 | 18 | 20 |
| Total | 21 | 21 | 42 |
| RC assay | |||
| Preservative positive | 14 | 2 | 16 |
| Preservative negative | 0 | 6 | 6 |
| Total | 14 | 8 | 22 |