|
| dds3 | Total | Asymp. Sig. (2-sided) | |||||
| 3.00 | 4.00 | 5.00 | 6.00 | |||||
| A vs B | 1 or 2 level obstruction | Count | 25 | 34 | 21 | 0 | 80 |
|
| (%) | 67.6% | 35.1% | 41.2% | 0.0% | 43.0% |
| ||
| 3 or more than 3 level obstruction | Count | 12 | 63 | 30 | 1 | 106 | 0.006 | |
| (%) | 32.4% | 64.9% | 58.8% | 100.0% | 57.0% |
| ||
| Total | Count | 37 | 97 | 51 | 1 | 186 |
| |