Evaluation of AMSTAR to assess the methodological quality of systematic reviews in overviews of reviews of healthcare interventions

Table 1 Overview topics and their included systematic reviews

Overview topic	Author, Year (reference)	First outcome listed in overview	Number of included systematic reviews
Overview topic	Author, Year (reference)	First outcome listed in overview	Cochrane	Non-Cochrane	Total
Acute asthma	Pollock, 2017 [22]	Hospital admission	7	6	13
Acute otitis media	Oleszczuk, 2012 [23]	Pain early in therapy	6	10	16
Bronchiolitis	Bialy, 2011 [24]	Hospital admission	4	3	7
Croup	Bjornson, 2010 [25]	Clinical score	4	2	6
Eczema	Foisy, 2011 [26]	Incidence of eczema	6	19	25
Gastroenteritis	Freedman, 2013 [27]	Hospital admission	3	12	15
Procedural sedation	Hartling, 2016 [28]	Adverse effects^a	0	13	13
Total			30	65	95

^aWe were unable to extract primary outcome data from the systematic reviews included within the procedural sedation overview because data for the comparator group were often not available

ISSN: 1471-2288