Purpose:Oral care in hospitalized patients with psychiatric disorders is important. However, some patients with psychiatric disorders cannot undergo oral care because of psychiatric symptoms and cognitive decline. The effect of a standardized oral hygiene intervention on the prevention of pneumonia in hospitalized patients with psychiatric disorders was investigated.Method:Patients were divided into 2 groups: control group (N?=?259), patients without standardized intervention who were enrolled on April 2014 as the time point of baseline, and intervention group (N?=?263), patients with standardized intervention who were enrolled on April 2015 as the time point of baseline. Two end points were evaluated: (1) pneumonia onset within 1?year after the enrollment and (2) no pneumonia for 1?year after the enrollment. The following parameters were compared between the groups: sex, age, psychiatric disorders, past history of diseases of the respiratory system, hypertension, diabetes, hyperlipidemia, heart impairment, and pneumonia.Results:No statistically significant differences were found between the 2 groups in the distributions of characteristics except pneumonia by univariate analysis. The presence of pneumonia was significantly associated with age and the absence of the standardized oral hygiene intervention by multivariate logistic regression analysis.Conclusions:The standardized oral hygiene intervention appears to be effective for preventing pneumonia in patients with psychiatric disorders.
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