Comparison of Success Rates, Stratified by Cartridge Conditions
| Condition | Total runs (n) | Failure rate | Success rate (n) | Mean RP | |
| Total (n) | Due to operator error (n) | ||||
| No conditioning | 476 | 33 | 4 | 443 (93.07%) | 97.18% (SD, 5.42) |
| 0.1 M HCl, 2.0 mL | 33 | 0 | 0 | 33 (100.00%) | 99.58% (SD, 0.27) |
| Sterile water, 2.0 mL | 271 | 6 | 4 | 265 (97.79%) | 99.08% (SD, 2.58) |
| No cartridge | 224 | 2 | 0 | 222 (99.11%) | 99.37% (SD, 1.45) |
| Total | 1,004 | 41 | 8 | 963 (95.92%) | 98.25% (SD, 4.19) |