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Table 2 Distribution of reviews by reviewer, setting, and method of data synthesis

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

Synthesis Method* Setting** N (%)
  Clinical Clinical System Community Mixed All
COCHRANE      
Meta-analysis 17 (89) 1 (50) 3 (23) 9 (75) 30
Median 0 (0) 0 (0) 0 (0) 0 (0) 0
Narrative 2 (11) 1 (50) 10 (77) 3 (25) 16
All levels 19 (100) 2 (100) 13 (100) 12 (100) 46
GUIDE      
Meta-analysis 0.0 (0) 0 (0) 0 (0) 0 (0) 0
Median 0.0 (0) 5 (100) 10 (83.3) 1 (100) 16
Narrative 0.0 (0) 0 (0) 2 (16.7) 0 (0) 2
All levels 0.0 (0) 5 (100) 12 (100) 1 (100) 18
  1. * Synthesis Method: Meta-analysis (indicating a pooled statistic), calculation of the median (median of effect sizes taken without any accompanying p-value), or narrative.
  2. ** 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).