| Ref ID | 382 |
| First Author | A. C. Tricco |
| Journal | JOURNAL OF CLINICAL EPIDEMIOLOGY |
| Year Of Publishing | 2008 |
| URL | https://www.jclinepi.com/article/S0895-4356(07)00405-2/fulltext |
| Keywords |
• Cochrane • General medical |
| Problem(s) |
• Inflexible methods to complex questions |
| Article Type | Empirical |
| Article Subtype | Cross-sectional survey/Methodological systematic review |
| First Author Country | Canada |
| Checklists |
• OQAQ |
| Aim | To assess the evidence concerning bias and confounding in conducting systematic reviews from systematic review articles indexed in the Cochrane Library, MEDLINE, PsycINFO until November 2006. |
| Level of Investigation | Descriptive |
| Summary of Findings | Few systematic reviews documented the extent of biases (or range of biases) that can occur while conducting a systematic review. The risk of bias in the systematic themselves varied greatly. Broadly, biases identified problems from the included systematic reviews related to: identifying studies and obtaining accurate data. Whilst bias can also occur in data synthesis, no systematic reviews were identified that covered issues with combining studies. |
| Number of systematic reviews included | 10 |
| Number of eligible systematic reviews assessed | 3733 |
| Treatment impacted | No |
| Treatment impacted description | |
| Interpretation impacted | Not Applicable |
| Interpretation impacted description |