Table 2.
Comparison of Length of Stay (LOS) Between Type of Procedure Among Patient Without Complication Before Discharge.
| N | Mean | StD | 25th | 50th | 75th | P | ||
|---|---|---|---|---|---|---|---|---|
| Staged surgery? | Same day | 729 | 5.8 | 2.6 | 4 | 6 | 7 | P < 0.001* |
| Stage | 194 | 10.1 | 4.2 | 7 | 9 | 12 | ||
| ASA grade | I or II | 524 | 6.5 | 3.3 | 5 | 6 | 8 | P = 0.028* |
| III or IV | 376 | 7.0 | 3.6 | 5 | 6 | 9 | ||
| MIS posterior fusion? | No | 759 | 7.0 | 3.4 | 5 | 6 | 8 | P < 0.001* |
| Yes | 164 | 5.6 | 3.4 | 3 | 5 | 7 | ||
| Fusion length | 1 to 4 lvl | 160 | 4.4 | 2.4 | 3 | 4 | 5.75 | P < 0.001” |
| 5 to 12 lvl | 558 | 7.0 | 3.2 | 5 | 6 | 8 | ||
| 13 and more lvl | 201 | 8.1 | 3.8 | 6 | 7 | 9 | ||
| Direct decompression? | No | 420 | 6.3 | 3.3 | 4 | 6 | 7.75 | P < 0.001* |
| Yes | 499 | 7.1 | 3.6 | 5 | 6 | 8 | ||
| Osteotomy performed? | No | 324 | 6.0 | 3.2 | 4 | 6 | 7 | P < 0.001” |
| SPO | 480 | 7.0 | 3.5 | 5 | 6 | 8 | ||
| 3CO | 119 | 7.7 | 3.6 | 5 | 7 | 9 | ||
| IBF placed? | No | 312 | 6.3 | 2.7 | 5 | 6 | 7 | P = 0.010* |
| Yes | 607 | 7.0 | 3.7 | 5 | 6 | 9 | ||
| ALIF | 234 | 8.3 | 4.1 | 5 | 7.5 | 10 | - | |
| P/TLIF | 247 | 6.3 | 2.5 | 5 | 6 | 7 | - | |
| LLIF | 208 | 7.0 | 4.3 | 4 | 6 | 9 | - |
*Mann-Whitney U test, “Kruskal-Wallis test.