Table 5.
Hospital reimbursement and margins for posterolateral fusion with pedicle screws and interbody device.
| Insurance Type |
Mean Reimbursement |
Insurance Comparison |
Difference of Mean (95% CI) |
P Value |
| Medicaid (1) | $13,818.96 | 1 versus 2 | $26,352.51 (−13 767.95, 66 472.98) | .349 |
| Medicare (2) | $40,171.48 | 1 versus 3 | $71,449.1 (26 807.17, 116 091) | 0 |
| Worker's compensation (3) | $85,268.07 | 1 versus 4 | $37,821.21 (49.04229, 75 593.38) | .05 |
| Private insurance (4) | $51,640.18 | 1 versus 5 | $−13,184.14 (−96 701.56, 70 333.27) | .991 |
| Charity (5) | $634.82 | 2 versus 3 | $45,096.59 (9354.436, 80 838.74) | .007 |
| Self-pay (6) | None | 2 versus 4 | $11,468.7 (−15 202.18, 38 139.58) | .737 |
| 2 versus 5 | $39,536.66 (−118 655.3, 39 581.97) | .617 | ||
| 3 versus 4 | $−39,627.89 (−667 137.9, −543.3532) | .045 | ||
| 3 versus 5 | $−84,633.25 (−166 137.9, −3128.597) | .038 | ||
| 4 versus 5 | $−51,005.36 (−128 959.5, 26 948.75) | .352 | ||
| Insurance type |
Mean Margin |
Insurance Comparison |
Difference of Mean (95% CI) |
P Value |
| Medicaid (1) | −$6,456.17 | 1 versus 2 | $29,502.5 (1313.799, 57 691.2) | .036 |
| Medicare (2) | $23,046.33 | 1 versus 3 | $75,244.74 (43 879.25, 106 610.2) | 0 |
| Worker's compensation (3) | $68,788.56 | 1 versus 4 | $39,591.16 (13 052.38, 66 129.95) | .001 |
| Private insurance (4) | $33,134.99 | 1 versus 5 | $−16,209.96 (−74 889.42, 42 469.5) | .933 |
| Charity (5) | −$22,666.13 | 2 versus 3 | $45,742.24 (20 629.75, 70 854.73) | 0 |
| Self-pay (6) | None | 2 versus 4 | $10,088.66 (8650.339, 28 827.67) | .548 |
| 2 versus 5 | $−45,712.46 (−101 301.3, 9876.411) | .152 | ||
| 3 versus 4 | $−35,653.57 (−58 898.82, −12 408.33) | .001 | ||
| 3 versus 5 | $−91,454.7 (−148 720, −34 189.41) | 0 | ||
| 4 versus 5 | $−55,801.12 (−110 571.8, −1030.45) | .044 |
Abbreviation: CI, confidence interval.