Missing the forest (plot) for the trees? A critique of the systematic review in tobacco control

Table 3 Distribution of reviews by reviewer, setting, and methodological criteria

Combined methodological criteria*	Setting** N (%)
	Clinical	Clinical System	Community	Mixed	All
COCHRANE
RCTs with pooling	14 (74)	0 (0)	2 (15)	4 (33)	20
RCTs/CTs with pooling	3 (16)	0 (0)	1 (8)	5 (42)	9
Other	2 (11)	2 (100)	10 (77)	3 (25)	17
All levels	19 (100)	2 (100)	13 (100)	12 (100)	46
GUIDE
RCTs with pooling	0 (0)	0 (0)	3 (25)	0 (0)	3
RCTs/CTs with pooling	0 (0)	0 (0)	0 (0)	1 (100)	1
Other	0 (0)	5 (100)	9 (75)	0 (0)	14
All levels	0 (0)	5 (100)	12 (100)	1 (100)	18

* Combined methodological criteria: RCTs with pooling (Randomized controlled trials only, with quantitatively pooled results), RCTS/CTs with pooling (Randomized controlled trials or Controlled Trials only, with quantitatively pooled results), Other (any study design, any type of synthesis)
** Setting: Clinical (interventions aimed at individuals in a clinical setting), Clinical system (interventions involving the healthcare system, such as subsidies for cessation medications or provider training), Community, or Mixed (included trials involving interventions in two or more of the above).

ISSN: 1471-2288