ABSTRACT
OBJECTIVE: The Multicultural Quality of Life Index is a concise instrument for comprehensive, culture-informed, and self-rated assessment of health-related quality of life. It is composed of 10 items (from physical well-being to global perception of quality of life). Each item is rated on a 10-point scale. The objective was to evaluate the reliability (test-retest), internal structure, discriminant validity, and feasibility of the Multicultural Quality of Life Index in Lima, Peru. METHOD: The reliability was studied in general medical patients (n = 30) hospitalized in a general medical ward. The Multicultural Quality of Life Index was administered in two occasions and the correlation coefficients ("r") between both interviews were calculated. Its discriminant validity was studied statistically comparing the average score in a group of patients with AIDS (with presumed lower quality of life, n = 50) and the average score in a group of dentistry students and professionals (with presumed higher quality of life, n = 50). Data on its applicability and internal structure were compiled from the 130 subjects. RESULTS: A high reliability correlation coefficient (r = 0.94) was found for the total score. The discriminant validity study found a significant difference between mean total score in the samples of presumed higher (7.66) and lower (5.32) quality of life. The average time to complete the Multicultural Quality of Life Index was less than 4 minutes and was reported by the majority of subjects as easily applicable. A high Cronbach's a (0.88) was also documented. CONCLUSIONS: The results reported that the Multicultural Quality of Life Index is reliable, has a high internal consistency, is capable of discriminating groups of presumed different quality of life levels, is quite efficient, and easy to use.
Subject(s)
Acquired Immunodeficiency Syndrome/psychology , Cultural Diversity , Health Personnel/psychology , Quality of Life , Surveys and Questionnaires , Adult , Female , Health Status , Hospitalization , Humans , Male , Peru , Reproducibility of Results , Socioeconomic FactorsABSTRACT
We have studied the colour centre production in yttria-stabilized zirconia (ZrO(2):Y(3 +)) by heavy ion irradiation in the GeV range using on-line UV-visible optical absorption spectroscopy. Experiments were performed with 11.4 MeV amu(-1) (127)Xe, (197)Au, (208)Pb and (238)U ion irradiations at 8 K or room temperature (RT). A broad and asymmetrical absorption band peaked at a wavelength about 500 nm is recorded regardless of the irradiation parameters, in agreement with previous RT irradiations with heavy ions in the 100 MeV range. This band is de-convoluted into two broad Gaussian-shaped bands centred at photon energies about 2.4 and 3.1 eV that are respectively associated with the F(+)-type centres (involving a singly ionized oxygen vacancy, VO· and T centres (i.e. Zr(3+) in a trigonal symmetry) observed by electron paramagnetic resonance (EPR) spectroscopy. In the case of 8 K Au ion irradiation at low fluences, six bands are used at about 1.9, 2.3, 2.7, 3.1 and 4.0 eV. The three bands near 2.0-2.5 eV can be assigned to oxygen divacancies (i.e. F(2)(+) centres). No significant effect of the irradiation temperature is found on the widths of all absorption bands for the same ion and fluence. This is attributed to the inhomogeneous broadening arising from the static disorder due to the native charge-compensating oxygen vacancies. However, the colour centre production yield is strongly enhanced at 8 K with respect to RT. When heating irradiated samples from 8 K to RT, the extra colour centres produced at low temperature do not recover completely to the level of RT irradiation. The latter results are accounted for by an electronically driven defect recovery process.
ABSTRACT
OBJETIVE: The Multicultural Quality of Life Index is a concise instrument for comprehensive, culture-informed, and self-rated assessment of health-related quality of life. It is composed of 10 items (from physical well-being to global perception of quality of life). Each item is rated on a 10-point scale. The objective was to evaluate the reliability (test-retest), internal structure, discriminant validity, and feasibility of the Multicultural Quality of Life Index in Lima, Peru. METHOD: The reliability was studied in general medical patients (n = 30) hospitalized in a general medical ward. The Multicultural Quality of Life Index was administered in two occasions and the correlation coefficients ("r") between both interviews were calculated. Its discriminant validity was studied statistically comparing the average score in a group of patients with AIDS (with presumed lower quality of life, n = 50) and the average score in a group of dentistry students and professionals (with presumed higher quality of life, n = 50). Data on its applicability and internal structure were compiled from the 130 subjects. RESULTS: A high reliability correlation coefficient (r = 0.94) was found for the total score. The discriminant validity study found a significant difference between mean total score in the samples of presumed higher (7.66) and lower (5.32) quality of life. The average time to complete the Multicultural Quality of Life Index was less than 4 minutes and was reported by the majority of subjects as easily applicable. A high Cronbach's a (0.88) was also documented. CONCLUSIONS: The results reported that the Multicultural Quality of Life Index is reliable, has a high internal consistency, is capable of discriminating groups of presumed different quality of life levels, is quite efficient, and easy to use.
OBJETIVO: O índice Multicultural de Qualidade de Vida é um instrumento conciso para a avaliação ampla, culturalmente informada e auto-aplicável da qualidade de vida relativa à saúde. É composto de 10 itens (do bem-estar físico à percepção global da qualidade de vida). Cada item é classificado de acordo com uma escala de 10 pontos. O objetivo foi o de avaliar a confiabilidade (teste-reteste), estrutura interna, validade discriminante e a viabilidade do índice Multicultural de Qualidade de Vida em Lima, Peru. MÉTODO: A confiabilidade foi estudada em pacientes da clínica geral (n = 30) hospitalizados em uma enfermaria clínica geral. O índice Multicultural de Qualidade de Vida foi ministrado em duas ocasiões e os coeficientes de correlação ("r") entre ambas as entrevistas foram calculados. Sua validade discriminante foi estudada comparando estatisticamente o escore médio em um grupo de pacientes com AIDS (com presumida menor qualidade de vida, n = 50) e o escore médio em um grupo de estudantes e profissionais de odontologia (com presumida maior qualidade de vida, n = 50). Os dados sobre sua aplicabilidade e estrutura interna foram compilados a partir de 130 indivíduos. RESULTADOS: Achou-se um alto coeficiente de correlação de confiabilidade no escore total (r = 0,94). O estudo de validade discriminante encontrou diferença significativa entre o escore médio total nas amostras de qualidade de vida presumida mais alta (7,66) e mais baixa (5,32). O tempo médio para completar o índice Multicultural de Qualidade de Vida foi de menos de 4 minutos e foi relatado pela maioria dos indivíduos como facilmente aplicável. Foi também documentado um alto alfa de Cronbach (0,88). CONCLUSÕES: Os resultados relatam que o índice Multicultural de Qualidade de Vida é confiável, possui uma alta consistência interna, é capaz de discriminar grupos de diferentes níveis de qualidade de vida presumidos, é muito eficiente e é de fácil utilização.