RoB NMA| Study design(s) targeted by the tool | Network meta-analysis (NMA)network-meta-analysis-nma |
|---|---|
| Additional details on designs | |
| Tool area | Health |
| Link to the tool | Get the RoB NMA tool |
Details | |
| Website | |
| Primary publication | Lunny C, Higgins J, White I, et al. Risk of Bias in Network Meta-Analysis (RoB NMA) tool. BMJ. 2025;388:e079839. doi:10.1136/bmj-2024-079839. |
| DOI | 10.1136/bmj-2024-079839 |
| Guidance document | |
| Training | None known – please contact us if you are aware of any training that should be listed here. |
| Language | English |
| Translations | None known – please contact us if you are aware of any translations that should be listed here. |
| Record last updated | 12/12/2025 |
Related tools and Publications | |
| Previous versions | None |
| Updated versions | None |
| Related tools | ROBIS |
| Evaluations | None known – please contact us if you are aware of any evaluations that should be listed here |
| Other publications | Lunny C, Veroniki A, Higgins J, et al. Methodological review of NMA bias concepts provides groundwork for the development of a list of concepts for potential inclusion in a new risk of bias tool for network meta-analysis (RoB NMA Tool). Syst Rev. 2024;13(1):25. doi:10.1186/s13643-023-02388-x. Lunny C, Veroniki A, Hutton B, et al. Knowledge user survey and Delphi process to inform development of a new risk of bias tool to assess systematic reviews with network meta-analysis (RoB NMA tool). BMJ Evid Based Med. 2023;28(1):58-67. doi:10.1136/bmjebm-2022-111944 |
Key Criteria | |
| Focuses on risk of bias, or makes a distinction between items that assess risk of bias and other aspects of study quality | Yes |
| Offers a method to reach either a domain specific or overall assessment of risk of bias | Yes |
| Tool development involving a range of stakeholders from different disciplines (e.g. methodologists, statisticians, clinicians) | Yes |
| Avoids recommending use of summary numerical quality scores | Yes |
