International Scholarly Research Notices

Research Article

Evaluating the Use of a Negative D-Dimer and Modified Low Wells Score in Excluding above Knee Deep Venous Thrombosis in an Outpatient Population, Assessing Need for Diagnostic Ultrasound

Table 2

Comparing results for both studies.
Test numberIII
Time periodMarch 2009–March 2010September 2011–February 2012
Total number of patients526290
Number of eligible patients510 (96.9%)290 (100%)
Negative D-dimer265 (51.9%)94 (32.4%)
Low Wells score143 (53.9%)43 (45.7%)
Moderate Wells score88 (33.2%)45 (47.8%)
High Wells score19 (7.1%)6 (6.3 %)
No result for Wells score15 (5.6%)0
DVT positive patients7 (7/265: 2.6%)1 (1/94: 1%)