Table 4: Quality of study Housner, et al.
| Support for judgement | Review authors' judgement | |
| Selection bias: Random sequence generation | Method not described. Not randomized choice | High bias probability |
| Selection bias: Allocation concealment | Treatment of patients with at least 6 months of pain, previous non-responding treatment, instrumental diagnosis of chronic lateral epicondylitis | High bias probability |
| Performance bias | No blinding of the patient referred to the treatment is described | High bias probability |
| Detection bias | No blinding of outcome assessors is described | High bias probability |
| Attrition bias | No patients outcomes attrition or exclusion are described. All the patient who received the procedure have an outcomes reported |
Low bias probability |
| Reporting bias | No selective outcomes reporting are present | Low bias probability |
| Other sources of bias | No | Low bias probability |