Table 1.
Perioperative factors for Isolated Carpal Tunnel Releases (CTRs) in facilities performing CTRs in the lowest and highest charge quintiles in the CDC population in 2006.
| Carpal Tunnel Release | Overall | Lowest 20% Charges by Facility | Highest 20% Charges by Facility | P-value |
|---|---|---|---|---|
| Total Volume | 160000 | - | - | - |
| Setting (%) | - | |||
| Hospital Based | 48 | 0 | 78 | - |
| ASC | 52 | 100 | 22 | - |
| Female (%) | 67 | 54 | 52 | 0.25 |
| Mean Age (yrs) | 56 | 55 | 61 | 0.62 |
| Mean Charlson Score | 0 | 0 | 0 | 1.00 |
| Payor (%) | ||||
| Medicare | 27 | 20 | 51 | 0.80 |
| Private | 64 | 72 | 43 | 0.76 |
| Self Pay | <1 | 0 | 1 | 0.86 |
| Other | 8 | 8 | 5 | 0.90 |
| Median Charges | $2,411 | $1,825 | $3,156 | 0.00 |
| Median Perioperative Times (min) | ||||
| Surgery Time | 13 | 14 (SD 4.7) | 13 (SD 22.8) | 0.34 |
| OR Time | 33 | 31 (SD 8.2) | 41 (SD 23.2) | 0.00 |
| Postop Time | 51 | 45 (SD 16.6) | 65 (SD 21.6) | 0.30 |
| Total Time | 84 | 80 (SD 18.9) | 114 (SD 35.4) | 0.02 |
| Anesthesia Type (%) | ||||
| Local | 17 | 17 | 13 | 0.16 |
| MAC | 31 | 35 | 40 | 0.02 |
| Regional | 37 | 56 | 34 | 0.52 |
| IV Sedation | 37 | 19 | 21 | 0.49 |
| General | 13 | 3 | 12 | 0.19 |
| Anesthesia Provider (%) | ||||
| Anesthesiologist | 61 | 63 | 51 | 0.60 |
| CRNA | 41 | 37 | 58 | 0.30 |
| Surgeon | 10 | <1 | 12 | 0.64 |
*
ASC = ambulatory surgery center
*
MAC = monitored anesthesia care
*
CRNA = certified registered nurse anesthetist