Table 4.
Clinical data of BKP cohort in comparison with the historical control cohort.
| BKP cohort | Historical cohort | p-Valuea | ||
|---|---|---|---|---|
| Number | 9 | 11 | ||
| Age (months) | Mean | 66.7 ± 36.2 | 79.1 ± 44.7 | p = 0.511 |
| Range | 28–132 | 18–142 | ||
| Sex | F | 3 | 3 | p = 1.000 |
| M | 6 | 8 | ||
| Garg's classification | IIA | 7 | 10 | p = 0.566 |
| IIB | 2 | 1 | ||
| Operation duration (minutes) | Mean | 134 ± 21 | 121 ± 36 | p = 0.357 |
| Range | 112–170 | 70–186 | ||
| VH0 (%) | Mean | 28.0 ± 11.9 | 25.5 ± 14.2 | p = 0.673 |
| Range | 9.3–45.2 | 2.8–46.2 | ||
| VH1 (%) | Mean | 72.0 ± 14.7 | 65.8 ± 16.1 | p = 0.387 |
| Range | 44.4–89.1 | 34.7–89.2 | ||
| VH2 (%) | Mean | 86.0 ± 9.5 | 74.2 ± 12.1 | p = 0.027 |
| Range | 68.5–96.0 | 53.9–91.8 |
VH0: percentage of diseased vertebral body height to reference, before operation.
VH1: percentage of diseased vertebral body height to reference, 1-year after operation.
VH2: percentage of diseased vertebral body height to reference, 2-year after operation.
a
Independent t-test for comparison of quantitative variant distributions inter-cohorts; Fisher's exact test is used to compare categorical distributions, while paired t-tests are used to compare quantitative variation intra-cohort distributions.