- Framework of problems / Rigourous
- Risk of bias not incorporated into conclusions of review
- Quality of Systematic Reviews of the Foods with Function Claims in Japan: Comparative Before- and After-Evaluation of Verification Reports by the Consumer Affairs Agency
| Ref ID | 190 |
| First Author | H. Kamioka |
| Journal | NUTRIENTS |
| Year Of Publishing | 2019 |
| URL | https://res.mdpi.com/d_attachment/nutrients/nutrients-11-01583/article_deploy/nutrients-11-01583-v3.pdf |
| Keywords |
Reproducibility Nutrition Publication bias Risk of bias Pre-specification Searching |
| Problem(s) |
Methods not described to enable replication Insufficient literature searches Poor consideration of publication bias Limited quality assessment or no risk of bias Flawed risk of bias undertaken Risk of bias not incorporated into conclusions of review Low methodological (AMSTAR) quality Lack of prespecification in eligibility criteria |
| Number of systematic reviews included | 104 |
| Summary of Findings | Of the 104 included systematic reviews of Food with Function claims registered in the Consumer Affairs Agency website in Japan between 2015 and 2017, quality was poor for seven items of the 11-item checklist. In particular, there were very poor descriptions and/or implementations of study selection and data extraction, search strategy, evaluation methods for risk of bias, assessment of publication bias, and formulating conclusions based on methodological rigor and scientific quality of the included studies. |
| Did the article find that the problem(s) led to qualitative changes in interpretation of the results? | Not Applicable |
| Are the methods of the article described in enough detail to replicate the study? | No |