Higgins JPT, Thomas J, Chandler J, Cumpston M, Li T, Page MJ, Welch VA (editors). Cochrane Handbook for Systematic Reviews of Interventions version 6.4 (updated August 2023). Cochrane, 2023. Chapter 4: Updating a review
Covidence - How to update a review with new studies
PRISMA 2020 flow diagram for updated systematic reviews which included searches of databases, registers and other sources Link
Garner, P., Hopewell, S., Chandler, J., MacLehose, H., Akl, E. A., Beyene, J., ... & Schünemann, H. J. (2016). When and how to update systematic reviews: consensus and checklist. BMJ, 354. PDF
Database and platform |
Details |
Example |
Medline (Ovid) |
limit x to dt=YYYYMMDD-YYYYMMDD x = the number of the final search row Create date (.dt.) is the date when the record was created |
limit 20 to dt=20200101-20231231 Limits line 20 to between |
Embase and Emcare (Ovid) |
limit x to dc=YYYYMMDD-YYYYMMDD x = the number of the final search row .dc. is the date created |
limit 20 to dc=20200101-20231231 Limits line 20 to between |
PsycInfo (Ovid) |
limit x to up=YYYYMMDD-YYYYMMDD x = the number of the final search row up = the date the record was released into the database.
|
limit 20 to up=20200101-20231231 Limits line 20 to between |
EBM Reviews Cochrane (Ovid)
|
limit x to up=YYYYMMDD-YYYYMMDD x = the number of the final search row up = the date the record was released into the database. |
limit 20 to up=20200101-20231231 Limits line 20 to between |
CINAHL (Ebsco) |
AND the last line of your search with EM YYYYMMDD
AND the last line of your search with EM YYYYMMDD-YYYYMMDD
|
S20 AND EM 20200101- Limits line 20 to after January 1st 2020
S20 AND EM 20200101-20231231 Limits line 20 to between |
Scopus |
AND the last line of your search with LOAD-DATE AFT YYYYMMDD |
LOAD-DATE AFT 20200101 will return all documents that have been added or reprocessed in Scopus after January 1st 2020 |
Web of Science |
AND the last line of your search with LD=(YYYY-MM-DD/YYYY-MM-DD) |
Index Date: 2017-11-15 to 2020-10-09 LD=(2017-11-15/2020-10-09)
|