PPT Slide
(enteral feeding OR enteral nutrition OR parenteral nutrition)
AND (perioperative care OR postoperative)
Retrieves 3,837 abstracts!!!!
Need to narrow / focus the search:
Systematic Reviews of Level I or Level II papers
Level I (highest)
-large RCTs (high power results in low possibility of false +ve or false –ve)
Level II
-small RCTs (low power results in high possibility of false +ve and false –ve)
Level III
-non-randomized concurrent (contemporary) controls
Level IV
-non-randomized historical controls
Level V
-case series without controls
Shojania KG, Bero LA. Taking advantage of the explosion of systematic reviews: an efficient MEDLINE search strategy. Eff Clin Pract. 2001 Jul-Aug;4(4):157-62.