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[EN] Objectives: The International Classification of Functioning, Disability and Health (ICF) advocates a multifactorial and multifaceted conceptualization of disability. The objective of this study was to ascertain major medical, environmental and personal determinants of severe/extreme disability among the elderly population in Spain. The assessment scheme was consistent with the ICF model of disability. Methods: Nine populations contributed probabilistic or geographically-defined samples following a two-phase screening design. The Mini-Mental State Examination and the 12-item version of the World Health Organization-Disability Assessment Schedule, 2(nd) ed. (WHO-DAS II), were used as cognitive and disability screening tools, respectively. Positively screened individuals underwent clinical work-up for dementia and were administered the 36-item version of the WHO-DAS II to estimate ICF disability levels. We used logistic regression for the purposes of data combination, adjusted for age and sex in all analyses. Results: The sample was composed of 503 participants aged ≥ 75 years. Alzheimeŕs disease and depression were highly predictive of severe/extreme disability (OR: 17.40, 3.71). Good access to social services was strongly associated with a low level or absence of disability (OR: 0.05 to 0.18). Very difficult access to services and having dementia or another psychiatric disorder were associated with an increase in disability (OR: 66.06). There was also a significant interaction effect between access to services and neurological disorders (OR: 12.74). Conclusions: Disability is highly prevalent among the Spanish elderly and is influenced by medical, social and personal factors. Disability could potentially be reduced by ensuring access to social services, preventing dementia and stroke, and treating depression. [ES] Objetivos: La Clasificación Internacional del Funcionamiento, la Discapacidad y la Salud (CIF) propone un enfoque multifactorial de la discapacidad. El presente estudio analiza los principales determinantes médicos, ambientales y personales de la discapacidad grave y extrema en población anciana española siguiendo una evaluación congruente con el modelo CIF. Métodos: Nueve poblaciones aportaron muestras probabilísticas o definidas geográficamente siguiendo un diseño de cribado. Se usaron el Minimental State Examination y el World Health Organization-Disability Assessment Schedule, 2nd ed. (WHO-DAS II, 12 ítems), como cribados cognitivo y de discapacidad, respectivamente. Se evaluaron la presencia de demencia y los grados de discapacidad de la CIF usando la escala WHO-DAS II (36 ítems) entre los positivos al cribado. Los datos se combinaron usando regresión logística, ajustando por edad y sexo en todos los análisis. Resultados: Participaron 503 sujetos de 75 y más años de edad. Los individuos con enfermedad de Alzheimer y/o depresión tenían una mayor probabilidad de presentar discapacidad grave o extrema (OR: 17,40, 3,71). El acceso a los servicios sociales tuvo un efecto protector (OR: 0,05 a 0,18), mientras que el acceso «muy difícil» y la presencia de demencia u otro trastorno psiquiátrico se asociaron a un incremento de la discapacidad (OR: 66,06). Hubo una interacción significativa entre acceso a servicios y diagnóstico neurológico (OR: 12,74). Conclusiones: La discapacidad es altamente prevalente entre los ancianos españoles y está muy asociada a factores médicos, sociales y personales. La accesibilidad a los servicios sociales, la prevención de la demencia y del infarto cerebral, y el tratamiento de la depresión, pueden reducir la discapacidad entre los ancianos españoles. This project, led by J. de Pedro-Cuesta, was supported by the Pfizer Foundation and by the RECSP C03-09, CIEN C03-06 and CIBERNED and CIBERSAM research networks. Sí

Background Conjugate vaccines, such as the 7-valent conjugate vaccine (PCV7), alter serotype nasopharyngeal carriage, potentially increasing cases of otitis media by non-vaccine serotypes. Methods All paediatric middle ear fluid (MEF) isolates received in the Spanish Reference Laboratory for Pneumococci through a passive, laboratory-based surveillance system from January 1997 to June 2009 were analysed. Data from 1997 to 2000 were pooled as pre-vaccination period. Trends over time were explored by linear regression analysis. Results A total of 2,077 isolates were analysed: 855 belonging to PCV7 serotypes, 466 to serotype 19A, 215 to serotype 3, 89 to serotype 6A and 452 to other serotypes (< 40 isolates each). Over time, there has been a decreasing trend for PCV7 serotypes (R2 = 0.944; p < 0.001, with significant decreasing trends for serotypes 19F, 14, 23F and 9V), and increasing trends for serotype 19A (R2 = 0.901; p < 0.001), serotype 3 (R2 = 0.463; p = 0.030) and other non-PCV7 serotypes (R2 = 0.877; p < 0.001), but not for serotype 6A (R2 = 0.311; p = 0.094). Considering all isolates, amoxicillin non-susceptibility showed an increasing trend (R2 = 0.528; p = 0.017). Regarding serotype 19A, increasing trends in non-susceptibility to penicillin (R2 = 0.726; p = 0.001), amoxicillin (R2 = 0.804; p < 0.001), cefotaxime (R2 = 0.546; p = 0.005) and erythromycin (R2 = 0.546; p = 0.009) were found, with amoxicillin non-susceptibility firstly detected in 2003 (7.4%) and increasing up to 38.0% in 2009. In PCV7 serotypes (which prevalence decreased from 70.7% during 1997-2000 to 10.6% in 2009) amoxicillin non-susceptibility rates showed an increasing trend (R2 = 0.702; p = 0.002). However, overall, amoxicillin non-susceptibility (≈25% in 2008-9) could be mainly attributed to serotype 19A (> 35% isolates) since PCV7 strains represented < 11% of total clinical isolates. Conclusions In contrast to reports on invasive pneumococcal strains, in MEF isolates the reduction in the prevalence of PCV7 serotypes was not associated with decreases in penicillin/erythromycin non-susceptibility. The high prevalence of serotype 19A among paediatric MEF isolates and the amoxicillin non-susceptibility found in this serotype are worrisome since amoxicillin is the most common antibiotic used in the treatment of acute otitis media. These data suggest that non-PCV7 serotypes (mainly serotype 19A followed by serotypes 3 and 6A) are important etiological agents of acute otitis media and support the added value of the broader coverage of the new 13-valent conjugate vaccine.