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Updated: Jul 12, 2025

Oral Health Assessment by Lay Personnel for Older Adults
Published on: February 2, 2020
Factors Associated With Swallowing Function Among Physicians in Their 50s and 60s: A Cross-Sectional Study
Akihiko Hagiwara1, Kosaku Komiya2, Yuki Yoshimatsu3
1Department of Respiratory Medicine and Infectious Diseases, Oita University, Oita, JPN.
Background:
Individuals with swallowing dysfunction in their 50s and 60s may be at risk for aspiration pneumonia as they age. The association of background and lifestyle with swallowing dysfunction for those in their 50s and 60s has not been fully studied. This study aimed to clarify the relationship between lifestyle and swallowing function in this group.
Patients And Methods:
We targeted physicians in their 50s and 60s as participants. The repetitive saliva swallowing test (RSST) was used to evaluate swallowing function, and self-reported questionnaires about their lifestyle were administered. The associations between RSST scores and participants' backgrounds and lifestyles were analyzed.
Results:
This study included 310 participants, who were divided into two groups: 162 in the low RSST group and 148 in the high RSST group. The low RSST group had significantly shorter daily conversation times and a lower incidence of hyperlipidemia than the high RSST group. On multivariate analysis, less than three hours of daily conversation time was independently related to lower RSST scores (adjusted odds ratio: 1.863; 95% confidence interval: 1.167-2.974).
Conclusions:
Shorter conversation time may serve as a predictor of impaired swallowing function, potentially increasing the risk of aspiration pneumonia in the future.
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