1. 4-Liter Split-Dose Polyethylene Glycol Is Superior to Other Bowel Preparations, Based on Systematic Review and Meta-analysis 
Brintha K. Enestvedt, Christina Tofani, Loren A. Laine, Ann Tierney, M. Brian Fennerty 
Clinical Gastroenterology and Hepatology 
Volume 10, Issue 11, Pages (November 2012)
DOI: /j.cgh
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2. Figure 1
Study selection for meta-analysis. *ClinicalTrials.gov and review of references from selected RCTs.
Clinical Gastroenterology and Hepatology  , DOI: ( /j.cgh )
Copyright © 2012 AGA Institute Terms and Conditions

3. Figure 2
Forest plot showing a significantly higher number of excellent or good bowel preparations with 4-L split-dose PEG.
Clinical Gastroenterology and Hepatology  , DOI: ( /j.cgh )
Copyright © 2012 AGA Institute Terms and Conditions

4. Figure 3
Post hoc subgroup meta-analyses showing a higher number of excellent or good bowel preparations with 4-L split-dose PEG than for (A) MiraLAX/Gatorade or (B) single-dose 4-L PEG preparations. (A) A 4-L split-dose PEG vs MiraLAX/Gatorade. (B) A 4-L split-dose PEG vs single-dose PEG.
Clinical Gastroenterology and Hepatology  , DOI: ( /j.cgh )
Copyright © 2012 AGA Institute Terms and Conditions

5. Figure 4
Funnel plot showing no significant publication bias for primary outcome.
Clinical Gastroenterology and Hepatology  , DOI: ( /j.cgh )
Copyright © 2012 AGA Institute Terms and Conditions