“…This classification has seven categories: Class 0 (no visible or palpable sign of venous disease), Class 1 (telangiectasis, reticular veins, malleolar flare), Class 2 (varicose veins), Class 3 (edema without skin changes), Class 4 (skin changes ascribed to venous disease such as increased pigmentation, venous eczema, and lipodermatosclerosis), Class 5 (skin changes as defined previously with healed ulceration), and Class 6 (skin changes as defined previously with active ulceration) (Porter et al, 1996). The authors' previous work assessed the reliability of the clinical classification on 20 randomly chosen participants; the result was perfect (Kappa ϭ 1.0) (Pieper & Templin, 2001). Researchers who used the clinical classification with objective venous testing concluded that it accurately identified categories of chronic venous disease (Kistner, Eklof, & Masuda, 1996).…”