TY - JOUR T1 - A simple model based on wound size and duration predicted healing of venous leg ulcers at 24 weeks JF - Evidence Based Medicine JO - Evid Based Med SP - 64 LP - 64 DO - 10.1136/ebm.6.2.64 VL - 6 IS - 2 A2 - , Y1 - 2001/03/01 UR - http://ebm.bmj.com/content/6/2/64.1.abstract N2 - (2000) Am J Med 109, 15. Margolis DJ, Berlin JA, Strom BL.. Which venous leg ulcers will heal with limb compression bandages?. Jul;. :. –9.OpenUrlCrossRefPubMedWeb of Science
 
 QUESTION: In patients with venous leg ulcers, can a simple prediction rule be derived to identify those patients who will heal within 24 weeks with the use of limb compression bandages? 2 cohort studies—1 each for model derivation and validation. Derivation was done in a retrospective cohort from a cutaneous ulcer centre in a university hospital in Philadelphia, Pennsylvania, United States. Validation was done in >20 US clinical sites. 260 patients (mean age 66 y, 61% women, 62% white) were in the derivation cohort, and 219 patients (mean age 62 y, 51% women, 70% white) were in the validation cohort. Inclusion criteria for the derivation set were venous leg ulcer in the area from mid-calf to 1 inch below the malleolus, past or current history of lower leg edema that had improved with raising the leg, and other venous diseases. Exclusion criteria were ischaemic leg, life expectancy ≤24 weeks, recent use of immunosuppressive … ER -