Pittoni 1995.
Methods |
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Participants | 1. 234 ASA I‐II outpatients undergoing elective arthroscopy of the knee joint Exclusion criteria: contraindication to regional anaesthesia Patients randomized to:
2. No patients were excluded from analysis 3. Main characteristics of patients:
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Interventions |
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Outcomes | Outcomes were not classified as primary or secondary
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Notes |
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Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Unclear risk | Insufficient information to score this item as low or high risk of bias. Quote: "Patients were allocated randomly to receive (…)" (page 73) |
Allocation concealment (selection bias) | Unclear risk | Insufficient information to score this item as low or high risk of bias |
Blinding of participants (performance bias) | Unclear risk | Insufficient information to score this item as low or high risk of bias |
Blinding of outcome assessment (detection bias) All outcomes | Low risk | Quote: "and were interviewed by one of the authors (blind with respect to needle size(…)" (page 74) |
Incomplete outcome data (attrition bias) All outcomes | Low risk | No patients were lost to follow‐up |
Selective reporting (reporting bias) | Low risk | All patient‐important outcomes were reported |
Other bias | Low risk | No other biases were identified |