Quality of syntheses in the database and inventory

We provide below the quality (AMSTAR) ratings for evidence syntheses included in the COVID-END database and the COVID-END inventory. An evidence synthesis must have an AMSTAR score of four or higher to be considered for inclusion in the inventory of best evidence syntheses. 

Taxonomy elementsNumber included (and % of all included) 
with a high-quality score (8-11) [or medium-quality score (4-7)]
DatabaseInventory
All syntheses
525 (25%) [1166 (55%)]
198 (55%) [160 (45%)]
By taxonomy category – Public-health measures
106 (4%) [351 (20%)]
38 (11%) [45 (14%)]
By taxonomy category – Clinical management
414 (16%) [800 (46%)]
135 (40%) [62 (19%)]
By taxonomy category – Health-system arrangements
37 (1%) [182 (10%)]
9 (3%) [25 (8%)]
By taxonomy category – Economic and social responses
13 (1%) [73 (4%)]
6 (2%) [16 (5%)]
By type of synthesis – Full review
471 (22%) [939 (45%)]
178 (50%) [106 (30%)]
By type of synthesis – Rapid review
54 (3%) [226 (11%)]
20 (6%) [54 (15%)]
By whether self-designated living evidence synthesis
135 (6%) [71 (3%)]
119 (33%) [37 (10%)]

Mansilla C, Moat KA, McKinlay J, Lavis JN. The COVID-END inventory: An in-depth analysis of evidence syntheses addressing decisions related to the COVID-19 pandemic response. Hamilton, Canada: McMaster Health Forum | COVID-END; 16 April 2021.