- Framework of problems / Rigourous
- Low reporting or methodological quality (OTHER GUIDANCE)
- A Cross-Sectional Study Based on Forty Systematic Reviews of Foods with Function Claims (FFC) in Japan: Quality Assessment Using AMSTAR 2
| Ref ID | 929 |
| First Author | H. Kamioka |
| Journal | NUTRIENTS |
| Year Of Publishing | 2023 |
| URL | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10180741/ |
| Keywords |
Protocols Nutrition Non-Cochrane reviews Low methodological quality |
| Problem(s) |
Insufficient literature searches Limited quality assessment or no risk of bias Low reporting or methodological quality (OTHER GUIDANCE) No registered or published protocol |
| Number of systematic reviews included | 40 |
| Summary of Findings | From 40 included systematic reviews of foods with function claims (FFC) randomly selected from the Consumer Affairs Agency website in Japan from 1 April to 31 October 2022. Overall confidence was rated as “high” (N = 0, 0%), “moderate” (N = 0, 0%), “low” (N = 2, 5%), or “critically low” (N = 38, 95%). The mean AMSTAR 2 score was 51.1% (SD 12.1%; range 19–73%). Among the 40 systematic reviews, the number of critical domain deficiencies was 4 in 7.5% of systematic reviews, 3 in 52.5% of systematic reviews, 2 in 35% of systematic reviews, and 1 in 5% of systematic reviews. Registering the review’s protocol and comprehensive search strategies were particularly common deficiencies. Additionally, the risk of bias (RoB) was insufficiently considered. |
| 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 |