Characteristics of ON-Q analgesia catheter use
| Mean±SD | |
| Length of use (days) | 4.5±4.10 |
| Number of ribs anesthetized | 8.0±3.26 |
| Initial rate of 0.2% ropivacaine infusion (cc/hour) | 11.1±3.62 |
| Length of ICU admission prior to catheter insertion (days) | 2.3±2.03 |
| Length of ICU stay after catheter insertion (days) | 6.6±5.50 |
| Length of mechanical ventilation prior to catheter insertion (days) | 1.5±2.09 |
| Length of mechanical ventilation after catheter insertion (days) | 1.5±2.44 |
ICU, intensive care unit.