Entries in PubMed (10)


re: Clinical Queries

Searchers can be assured that the clinical queries for therapy, diagnosis, prognosis, etiology, and clinical prediction guides perform equally well in detecting relevant, methodologically sound studies in the current publishing years as they did when they were derived over a decade ago in the publishing year 2000.

JAMIA study.  From the group responsible for creating the filters.   

[via coworkers]

Wilczynski NL, McKibbon KA, Walter SD, Garg AX, Haynes RB. (2013). MEDLINE clinical queries are robust when searching in recent publishing years. JAMIA, 20(2), 363-8. PMID 23019242.


Field Tags in PubMed

Are not used very often.  TBH, I skipped over the maths, but that's the conclusion (which is what we'd all expect, I suspect).  When I demonstrate field tag use (specifically [title], [author], [journal], and sometimes [mesh] and [majr]), I usually do so within the context of efficiency, and often to address the question, "what are strategies for improving retrieval?"  Worthwhile to point out to EBM practitioners, I think.  

A study on pubmed search tag usage pattern: association rule mining of a full-day pubmed query log (PMID 23302604)
BMC Med Inform Decis Mak. 2013 Jan 9, 13(1):8
Mosa AS, Yoo I.



Clinical Queries Are Effective

The use of the clinical queries filters is strongly recommended by proponents of evidence-based medicine and is often taught in courses for physicians about literature searching. Our results support the use of this PubMed filter.

The authors also point out that the filters were infrequently used by the sample.  Unless you know they're there, they're difficult to stumble upon.  Perhaps they can be integrated into the main search in some way.  

 The abstract in PubMed.


RCT [pt] 

Not a surprise, but this study demonstrates that the randomized controlled trial publication type in PubMed is insensitive.  Bottom line: Don't rely on it entirely.  Use a validated filter whenever possible (like one from this excellent paper that compares and validates 38 RCT filters).  



Key Medline Indicators

In FY2011, there were 1.8 billion PubMed searches.  That's amazing.  As is the upward trend in searches over the last few years.  I've certainly contributed my fair share to the cause.