Table 2 Number of surgical procedure levels in studied groups
Group | Number of levels | Sum | P | ||||
|---|---|---|---|---|---|---|---|
2 | 3 | 4 | 5 | 6 | |||
VCV | 0 | 21 | 11 | 7 | 0 | 39 | 0.068 |
0% | 53.8% | 28.2% | 17.9% | 0% | 100% | ||
PCV | 1 | 28 | 3 | 7 | 1 | 39 | |
2.5% | 70%% | 7.5% | 17.5% | 2.5% | 100% | ||
Sum | 1 | 49 | 14 | 14 | 1 | 39 | |
1.3% | 17.7% | 17.7% | 62% | 1.3% | 100% | ||