Table 4.
Hospital reimbursement and margins for posterolateral fusion with pedicle screws.
| Insurance Type |
Mean Reimbursement |
Insurance Comparison |
Difference of Mean (95% CI) |
P Value |
| Medicaid (1) | $11,843.71 | 1 versus 2 | $25,607.2 (−16 801.63, 68 016.03) | .447 |
| Medicare (2) | $37,450.91 | 1 versus 3 | $53,998.83 (7381.263, 100 616.4) | .015 |
| Worker's compensation (3) | $65,842.54 | 1 versus 4 | $42,008.07 (−159.1057, 85 175.25) | .051 |
| Private insurance (4) | $53,851.78 | 1 versus 6 | $70,651.15 (11 684.07, 129 618.2) | .011 |
| Charity (5) | None | 2 versus 3 | $28,391.63 (6152.257, 50 631.01) | .006 |
| Self-pay (6) | $82,494.86 | 2 versus 4 | $16,400.87 (6427.76, 26 373.99) | 0 |
| 2 versus 6 | $45,043.95 (−29 965.8, 9784.277) | .54 | ||
| 3 versus 4 | $−11,990.76 (−33 765.8, 9784.277) | .32 | ||
| 3 versus 6 | $16,652.32 (−29 965.25, 63 269.89) | .855 | ||
| 4 versus 6 | $28,643.08 (13 524.1, 70 810.26) | .327 | ||
| Insurance type |
Mean Margin |
Insurance Comparison |
Difference of Mean (95% CI) |
P Value |
| Medicaid (1) | −$3,702.47 | 1 versus 2 | $22,908.02 (213.65, 67 184.68) | .6 |
| Medicare (2) | $19,205.55 | 1 versus 3 | $52,271.91 (3601.134, 100 942.7 | .029 |
| Worker's compensation (3) | $48,569.44 | 1 versus 4 | $40,537.4 (−3486.977, 84 561.77) | .086 |
| Private insurance (4) | $36,834.93 | 1 versus 6 | $69,138.69 (7574.484, 130 702.9) | .02 |
| Charity (5) | None | 2 versus 3 | $29,363.9 (6154.017, 52 582.77) | .006 |
| Self-pay (6) | $65,436.22 | 2 versus 4 | $17,629.38 (7217.017, 28 041.75) | 0 |
| 2 versus 6 | $46,230.67 (1954.008, 90 507.34) | .036 | ||
| 3 versus 4 | $−11,734.51 (−34 468.6, 10 999.58) | .602 | ||
| 3 versus 6 | $16,866.78 (−31 804, 65 537.55) | .868 | ||
| 4 versus 6 | $28,601.29 (−15 423.08, 72 625.67) | .372 |
Abbreviation: CI, confidence interval.