Risk factors and prognosis of aspiration pneumonia in the elderly

Objective To analyze the disease characteristics of aspiration pneumonia and its risk factors.Methods In thisretrospective case-control study,analysis was conducted on data from 92 patients aged≥60 years admitted to Beijing Jishuitan Hospital,Capital Medical University between June 1,2018 and July 31,2022,with aspiration pneumonia(AsP)as the primary diagnosis at the time of hospital discharge and from non-AsP patients admitted during the same period.The number of participants was matched at a 1:1 ratio.Results The average age of the AsP group was(80.88±9.41)years and 57(62.0%)were men.The average age of the control group was(77.74±10.98)years and 52(56.5%)were men.There was no statistically significant difference in age and sex ratio(age:t=1.973,P=0.060;sex ratio:X^(2)=0.661,P=0.416).Univariate analysis showed that,at admission,body mass index(BMI)and activities of daily living(ADL)scores of the AsP group were lower than those of the non-AsP group.