Objective:To explore the status quo and relationship of fall risk and fall prevention knowledge, belief and practice in senile convalescent population.Methods:Using the convenient sampling method, a total of 242 elderly people who were admitted to Huadong Sanatorium were selected as research objects from March 2019 to December 2020. The general information questionnaire, Morse Fall Scale (MFS) and Fall Prevention Knowledge, Belief and Practice Questionnaire for the Elderly in Huadong Sanatorium (Fall Knowledge, Belief and Behavior Questionnaire) were used to conduct the survey.Results:According to the MFS score, 242 elderly people were divided into the low-risk group ( n=60) , intermediate-risk group ( n=65) and high-risk group ( n=117) . Univariate analysis results showed that there were statistically significant differences in MFS scores among the elderly with different ages, education levels, monthly income, self-care ability, living status and the number of complicated chronic diseases ( P<0.05) . The scores of belief and behavior dimension and the total score of Fall Knowledge, Belief and Behavior Questionnaire for the elderly in the high-risk group were lower than those in the low-risk group, and the score of knowledge dimension and total score were lower than those in the intermediate-risk group, and the differences were statistically significant ( P<0.05) . Pearson correlation analysis results showed that scores of all dimensions and the total score of Fall Knowledge, Belief and Behavior Questionnaire for the elderly in sanatorium were negatively correlated with MFS scores ( r= -0.387, -0.230, -0.192, -0.370; P<0.05) . Logistic regression analysis showed that ages greater than or equal to 80 years, 1 to 2 types of combined chronic diseases and greater than or equal to 3 types of combined chronic diseases were risk factors for intermediate and high risk falls among elderly in sanatoriums ( P<0.01) , and the level of fall prevention behavior was a protective factor ( P<0.01) . Conclusions:For the elderly population over or equal to 80 years old with a large number of complicated chronic diseases and a low level of fall prevention behavior, we should focus on fall prevention and monitoring.

Objective:To evaluate narrow band imaging-magnifying endoscopy (NBI-ME) for the further assessment of lesions of low-grade intraepithelial neoplasia (LGIN) in the gastric biopsy.Methods:Data of 180 patients who underwent NBI-ME before endoscopic submucosal dissection (ESD) for biopsy of gastric LGIN at the First Affiliated Hospital of Soochow University from January 2017 to October 2020 were analyzed retrospectively. Taking the pathological results after ESD as the gold standard, the sensitivity, the specificity, the positive predictive value, the negative predictive value, and the accuracy of NBI-ME in predicting the pathological upgrading of gastric LGIN lesions after ESD were calculated, and the receiver operator characteristic (ROC) curve was drawn.Results:Among 180 gastric LGIN lesions, 115 (63.89%) were pathological upgraded and 65 (36.11%) were not after ESD. There were 10 missed diagnoses, 19 misdiagnoses, and 151 correct diagnoses in NBI-ME examination before ESD. The sensitivity, the specificity, the positive predictive value, the negative predictive value, and the accuracy of NBI-ME in predicting the pathological upgrading of gastric LGIN lesions after ESD were 91.3% (105/115), 70.8% (46/65), 84.7% (105/124), 82.1%(46/56) and 83.9% (151/180), respectively. The area under the ROC curve was 0.810 (95% CI: 0.737-0.883). Conclusion:Further NBI-ME examination of gastric LGIN lesions diagnosed by biopsy pathology can accurately predict whether the lesions have pathological upgrading after ESD, which is of important guiding significance for the patients to choose the treatment strategy of further follow-up or endoscopic resection.