Abstract

Background: The current study builds upon the work of others in looking at influencing factors of aspiration pneumonia in people with a swallowing problem. This study differs from previous researches on this topic, focusing on the United Kingdom (UK) population and involving more recently defined influencing factors of aspiration pneumonia. The study aims to explore the multifactorial nature of aspiration pneumonia in a UKdysphagic client group, as well as different disease specific variables. Methods: Speech and Language Therapists collected data on 33 influencing factors over a period of 6 months during routine bedside swallowing assessment of 687 patients. All subjects were adults referred with suspected dysphagia and included acute inpatients, head and neck cancer patients and adults with learning disabilities. The study population included 400 males and 287 females and ages ranged from 17 to 102 giving a mean age of 72.9 years. The influence of the different variables included in the study was evaluated using multivariate logistic regression analysis. Results: The results show that 13 statistically significant influencing factors were implicated in the development of aspiration pneumonia for this group. Out of these, nine correlate with the previous work undertaken in the United States. These were poor mobility, nil by mouth status, age, dependency for feeding, number of medications, Chronic Obstructive Pulmonary Disease (COPD), number of medical conditions, stroke and alcohol abuse. Four further influencing factors were shown to be significant in the UK population, these were dysphagia, only oral intake, bedfast, and male gender. Conclusions: This study confirms that in the UK there are influencing factors in the development of an aspiration pneumonia. It would be prudent to remember that a direct link is yet to be established when applying this knowledge to inform clinical management.

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