María Nelly Márquez

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OBJECTIVE In clinical practice, spirometry is a extremely useful test that requires strict quality control, an appropriate strategy for interpretation, and reliable reference values. The aim of this study was to report spirometric reference values for 5 cities in Latin America. PATIENTS AND METHODS From data for 5315 subjects who had undergone spirometry(More)
STUDY OBJECTIVES to estimate the prevalence of the most common sleep related symptoms (SRS) in the metropolitan areas of Mexico City, Montevideo (Uruguay), Santiago (Chile), and Caracas (Venezuela). METHODS The study consisted of a multistage cluster sampling of adults aged > or = 40 years living in metropolitan areas. All participants completed a(More)
BACKGROUND This study examines the psychometric properties of the Dysfunctional Thoughts about Caregiving Questionnaire (DTCQ). METHODS DTCQ was administered to 227 dementia family caregivers. RESULTS Principal components analyses resulted in a two-factor solution: Perception of Sole Responsibility and Perfectionism. The DTCQ has a strong internal(More)
OBJECTIVES Action learning (AL) facilitates reflection, critical thinking, and learning while solving real-world problems. Virtual AL is an asynchronous collaborative process that encourages students to analyze their critical incidents and learn from these experiences. The researchers sought to: 1) determine whether medical students engaged in(More)
OBJECTIVE Reflection enables learners to analyze their experiences and capture the wisdom that lies within. Effective teaching requires reliable methods of assessment. Several methods of assessing reflective writing have been described; however, they often require significant training, and reliability has seldom been assessed. This study was designed to(More)
UNLABELLED We report the characteristics of a centralized spirometry quality-control program developed for a population-based survey of the prevalence of chronic obstructive pulmonary disease in 5 cities: São Paulo, Brazil; México City, México; Montevideo, Uruguay; Santiago, Chile; and Caracas, Venezuela (the Latin American Project for the Investigation of(More)
BACKGROUND We report the performance of an ultrasound-based portable spirometer (EasyOne) used in a population-based survey of the prevalence of chronic obstructive pulmonary disease, conducted in 5 Latin American cities: São Paulo, Brazil; México City, México; Montevideo, Uruguay; Santiago, Chile; and Caracas, Venezuela (the Latin American COPD Prevalence(More)
Drawing upon Lawton's ecological model of adaptation and old age, this study analyses the implications of the degree of adjustment (congruence) between the self-assessed functional capacity of 33 community-dwelling elderly care receivers and their functional capacity as assessed by their respective family caregivers (N=33), for the adaptation of the elderly(More)
OBJECTIVE The criteria for disease severity established by the Global Initiative for Chronic Obstructive Lung Disease are based on forced expiratory volume in 1 second (FEV1) expressed as a percentage of the predicted value after application of a bronchodilator. This study aims to determine postbronchodilator spirometry reference values. SUBJECTS AND(More)
OBJECTIVES The moderator role of guilt on the effect of leisure activities on dementia caregivers' depressive symptoms was analyzed, considering differences by kinship and guilt as a multidimensional construct. METHOD Participants were 351 caregivers (58.97% daughters, 10.54% sons, 19.66% wives, and 10.83% husbands). Measures included frequency of leisure(More)