Demographic data of responding spine surgeons.
| Question | n | % | Cumulative % |
| Years performing spinal endoscopy | |||
| 0 | 3 | 1.2 | 1.2 |
| 1–4 | 50 | 20.5 | 21.7 |
| 5 | 53 | 21.8 | 43.5 |
| 6 | 23 | 9.4 | 52.9 |
| 7 | 20 | 8.2 | 61.1 |
| 8 | 25 | 10.2 | 71.3 |
| 9 | 9 | 3.7 | 75.0 |
| 10–32 y | 60.0 | 25.0 | 100.0 |
| Total | 244 | 100.0 | |
| Country | |||
| Missing response | 6 | 2.5 | 2.5 |
| Angola | 1 | 0.4 | 2.9 |
| Brazil | 19 | 7.8 | 10.7 |
| Canada | 1 | 0.4 | 11.1 |
| Chile | 2 | 0.8 | 11.9 |
| China | 191 | 78.3 | 90.2 |
| Colombia | 3 | 1.2 | 91.4 |
| Croatia | 1 | 0.4 | 91.8 |
| Ecuador | 1 | 0.4 | 92.2 |
| Germany | 5 | 2.0 | 94.3 |
| Mexico | 6 | 2.5 | 96.7 |
| South Korea | 1 | 0.4 | 97.1 |
| Thailand | 3 | 1.2 | 98.4 |
| United Kingdom | 1 | 0.4 | 98.8 |
| United States | 3 | 1.2 | 100.0 |
| Total | 244 | 100.0 |