Using a two-dimensional display to guide selection of citations

 
Citations can be plotted in two-dimensions using date of publication and projected quality of the article or the journal it is published in. In this demonstration, quality is projected by the quality of the journal as measured by the Article Influence (AI) Score
 
Example using list of PMIDs from the trials included in the meta-analysis by Abourbih (2009) (does not include subsequently published ACCORD trial) This frontier performs best when it is wide.
Example using list of PMIDs from the trials included in the meta-analysis by Kansagara (2011)
Example using list of PMIDs from the trials included in the meta-analysis by Musini (2009) This frontier performs best when it is wide.
 
Settings
Input type:
Include related citations:
Frontier width:

Frontier width?

  • 0.52 is the width between the NEJM and JAMA
  • 0.55 is the width between the JAMA and the Annals of Internal Medicine
Privilege evidence-based sources:

Privilege evidence-based sources?

  • If clicked, then the article influence score of articles by known providers of evidence-based resources such as the Cochrane, U.S. Preventive Services Task Force, and others, will be set equal to JAMA.
  • This option has not been formally tested. It may cause trials with article influence less than JAMA and published between the date of the search by the evidence-based review and the date of publication of the review to be removed from the frontier.
Focus:
Abstract required:
Citation to highlight
Options for publication:
Color graphics:   -  Citation start number
- - - Please click once.
You are not using FireFox; you will not see an extract of the abstract when you hover over the citations in the plot. However, you will see an extract when you hover over the PMID.
 
Higher
Article
quality*
Lower

Plot

The frontier is the red band.
The frontier is defined as containing those trials for which there are no trials both more recent and published in a journal with a AI Score higher than the specified width of the frontier.
Preferred region Avoid region 1 2 3 4 5 6 Frontier Sorry, your browser does not support inline SVG.
OlderYearNewer

* Estimated by the natural log of the article influence score of the journal that the citation is published in.

Citations found

Total: 12

Frontier

Hypothesis: These studies are considered in the Frontier and should be reviewed by a clinician needing to make a decision.
  1. Treatment of hypertension in patients 80 years of age or older. N Engl J Med. 2008. PMID: 18378519 AI Score: 21.64
  2. Randomised double-blind comparison of placebo and active treatment for older patients with isolated systolic hypertension. The Systolic Hypertension in Europe (Syst-Eur) Trial Investigators. Lancet. 1997. PMID: 9297994 AI Score: 14.57
  3. Morbidity and mortality in the Swedish Trial in Old Patients with Hypertension (STOP-Hypertension) Lancet. 1991. PMID: 1682683 AI Score: 14.57
  4. Prevention of stroke by antihypertensive drug treatment in older persons with isolated systolic hypertension. Final results of the Systolic Hypertension in the Elderly Program (SHEP). SHEP Cooperative Research Group. JAMA. 1991. PMID: 2046107 AI Score: 13.11
  5. Mortality and morbidity results from the European Working Party on High Blood Pressure in the Elderly trial. Lancet. 1985. PMID: 2861311 AI Score: 14.57
  6. Hypotensive therapy in stroke survivors. Lancet. 1970. PMID: 4190177 AI Score: 14.57

Citations not on frontier

Hypothesis: These citations are considered outside of the frontier and could safely be ignored by a clinician needing to make a decision.
  1. Results of the pilot study for the Hypertension in the Very Elderly Trial. J Hypertens. 2003. PMID: 14654762 AI Score: 1.245
  2. Medical Research Council trial of treatment of hypertension in older adults: principal results. MRC Working Party. BMJ. 1992. PMID: 1445513 AI Score: 6.287
  3. Morbidity and mortality in the Systolic Hypertension in the Elderly Program (SHEP) pilot study. Stroke. 1989. PMID: 2911834 AI Score: 2.264
  4. Randomised trial of treatment of hypertension in elderly patients in primary care. Br Med J (Clin Res Ed). 1986. PMID: 3094811 AI Score: 6.287
  5. Blood pressure reduction in elderly: a randomised controlled trial of methyldopa. Br Med J (Clin Res Ed). 1981. PMID: 6794796 AI Score: 6.287
Additional citations below the limits of the plot.
    No citations

Article influence score not available

  1. Prospective study on the treatment of mild hypertension in the aged. Jpn Heart J. 1981 ISSN: 0021-4868 ISSNlinking: 0021-4868. PMID: 7012398
 
Questions: rbadgett@kumc.edu