Functional claudication distance: a reliable and valid measurement to assess functional limitation in patients with intermittent claudication

BACKGROUND: Disease severity and functional impairment in patients with intermittent claudication is usually quantified by the measurement of pain-free walking distance (intermittent claudication distance, ICD) and maximal walking distance (absolute claudication distance, ACD). However, the distance at which a patient would prefer to stop because of claudication pain seems a definition that is more correspondent with the actual daily life walking distance. We conducted a study in which the distance a patient prefers to stop was defined as the functional claudication distance (FCD), and estimated the reliability and validity of this measurement. METHODS: In this clinical validity study we included patients with intermittent claudication, following a supervised exercise therapy program. The first study part consisted of two standardised treadmill tests. During each test ICD, FCD and ACD were determined. Primary endpoint was the reliability as represented by the calculated intra-class correlation coefficients. In the second study part patients performed a standardised treadmill test and filled out the Rand-36 questionnaire. Spearman's rho was calculated to assess validity. RESULTS: The intra-class correlation coefficients of ICD, FCD and ACD were 0.940, 0.959, and 0.975 respectively. FCD correlated significantly with five out of nine domains, namely physical function (rho = 0.571), physical role (rho = 0.532), vitality (rho = 0.416), pain (rho = 0.416) and health change (rho = 0.414). CONCLUSION: FCD is a reliable and valid measurement for determining functional capacity in trained patients with intermittent claudication. Furthermore it seems that FCD better reflects the actual functional impairment. In future studies, FCD could be used alongside ICD and ACD

Health care consumption and place of death among old people with public home care or in special accommodation in their last year of life.

BACKGROUND AND AIMS: Developing care for older people in the last phase of life requires knowledge about the type and extent of care and factors associated with the place of death. The aim of this study was to examine age, living conditions, dependency, care and service among old people during their last year of life, but also their place of death and factors predicting it. METHODS: The sample (n=1198) was drawn from the care and services part of the Swedish National Study on Ageing and Care (SNAC). Criteria for inclusion were being 75+ years, dying in 2001-2004, and having public care and services at home or in special accommodation. RESULTS: In the last year of life, 82% of persons living at home and 51% living in special accommodation were hospitalized; median stays were 10 and 6.7 days respectively. Those living at home were younger and less dependent in ADL than those living in special accommodation. Those living at home and those having several hospital stays more often died in hospital. In the total sample, more visits to physicians in outpatient care predicted dying in hospital, whereas living in special accommodation and PADL dependency predicted dying outside hospital. CONCLUSIONS: Old people in their last year of life consumed a considerable amount of both municipal care and outpatient and in-hospital medical care, especially those living at home, which in several cases ended with death in hospital. (Aging Clin Exp Res 2007; 19: 228-239) ©2007, Editrice Kurti