This study will be a review based on systematic reviews (SRs). The study will be restricted to all original SRs of healthy adults.
Conditions
Interventions
None listed
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Studies will be eligible if they are SRs based on the FFC registered at the CAA website. We will search the database from 1 April, up to 31 October, 2015 as the pre-SR and from 1 July, 2017 up to 31 January, 2018 as the post-SR. Actually, the pre-SR was evaluated by the CAA according to the PRISMA checklist and our research group (FFC-SR2) according to the AMSTAR checklist. We will make use of each statistical data as results of pre-evaluation. Furthermore, we will add an evaluation by the AMSTAR 2 that was developed newly.
Exclusion criteria
Exclusion criteria: We will exclude SRs based on observational studies such as cohort study and case-control study. We will exclude SRs of the same content registered in order to submit any other final products on a post SR. And we will also exclude only a minor-revised SR for an original SR on the pre-.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| We will evaluate each SR by the AMSTAR checklist (Shea BJ, et al., 2007) and the AMSTAR 2 (Shea BJ, et al., 2017) on methodological quality and the PRISMA checklist (Liberate A, et al., 2009) on reporting quality, respectively. | — |
Countries
Japan
Contacts
Tokyo University of Agriculture Faculty of Regional Environment Science