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Introduction

COPD is a highly prevalent but underdiagnosed disease, due to the limited availability of forced spirometry (FS) in primary care (PC). Microspirometers are inexpensive, easy-to-use devices that can measure FEV6 and FEV1/FEV6, and may help reduce underdiagnosis. The aim of this study was to validate the Piko-6 COPD screening device by demonstrating a good correlation with standard FS.

Methods

FS and Piko-6 determinations were made in 155 patients suspected of having COPD. The correlations, ROC curves, and Youden's index of both methods were compared, taking FS as the gold standard.

Results

FEV1, FVC and FEV6 correlation coefficients and FEV1/FVC and FEV1/FEV6 ratios were 0.87 (CI 0.836-0.909), 0.729 (CI 064-0.795) and 0.947 (95% CI 0.928-0.961), respectively. The ROC curve for FEV1 determined by Piko-6 achieved an area under the curve of 0.86 (95% CI: 0.78-0.92). Youden's index with a cut-off point of 0.70 for FEV1/FEV6 was 0.97.

Conclusions

Piko-6 may be useful for COPD screening in PC. Measurements obtained with this device correlate well with those determined by FS, particularly the FEV1/FEV6 ratio. This, combined with its low cost and ease of use, may contribute to reducing COPD underdiagnosis, although its exact role in the diagnostic process remains to be determined.  相似文献   

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ObjectiveTo determine the cost of medical care in patients with gonarthrosis.Material and methodsCost study in patients over 40 years of age with gonarthrosis, diagnosed according to the radiological classification of Kellgren and Lawrence. The average annual cost (euros) was estimated taking the unit cost plus average use of services such as family medicine, imaging, laboratory, electrodiagnosis, orthopedics, hospitalization, physical therapy, surgery, nutrition, preoperative assessment and medication. Projections based on assumptions were made for three scenarios.ResultsGrade 2 gonarthrosis predominated at 39.7% (95% confidence interval, 33.8 - 45.6). The annual cost of care for a patient with gonarthrosis was € 108.87 in the intermediate scenario, € 86.73 in the lower cost scenario and € 132.60 in the higher cost scenario. For a population of 119,530,753 inhabitants, with 10,937,064 gonarthrosis patients, the annual cost in the intermediate scenario was € 1,190,685,273 and represented 4.48% of the health expenditure.ConclusionThe average annual cost of gonarthrosis is relatively low, but when related to prevalence and prevalence trends, it can become a serious problem for health services.  相似文献   

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Background and objectivesPrevious to the development of a clinical pathway (CP) for early spondyloarthritis (SpA), a qualitative study was performed to know the attitude of primary care physicians (PCP) with respect to CP implementation.Methods5 discussion groups (2 in Madrid, 2 in Barcelona and 1 in Sevilla) and 3 interviews in Bilbao, were performed. PCP with different profiles were included. Groups and interviews were carried out by experts on qualitative methodology.ResultsPCP know little about CP. Motivations of professionals to work on a SpA CP were: to improve patients care, availability of a specialist consultant, possibility of learning and doing research, remuneration, and professional recognition. Objections to CP implementation were: extra work, excessive bureaucracy, absence of a specialist consultant, computer difficulties, and no remuneration. SpA knowledge by PCP was defective. PCP associated the term «spondylitis» with osteoarthritis, low-back pain, ankylosing spondylitis and psoriatic arthritis. They only referred patients to the rheumatologist to confirm the diagnosis, when patients complained and when treatment was ineffective.ConclusionsFor an optimal CP implementation, the following is deemed necessary: 1) a practical, simple program that eases the interaction with the rheumatologist without an increase on the PCP work load; 2) to provide continuous feedback by the specialist and 3) to provide knowledge on SpA to PCP.  相似文献   

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