Objective To investigate the influence of social support on the depression and anxiety of standardized training residents.Methods Three hundred and eighteen standardized training residents selected by random sampling method from 4 training bases in Shanghai participated in this survey.ResultsThe average score of PHQ-9 was(7.24±5.20), and 67.30%(n=214)of participants had different degrees of depression;the average score of GAD-7 was(5.57±4.55), and 55.03%(n=175)of participants had different degrees of anxiety.One-way analysis of variances showed that standardized training residents who had work experience, longer training years and less salary satisfaction got higher scores in PHQ-9 and GAD-7.Male physicians had higher scores in GAD-7 than female ones.The scores of PHQ-9 (r=-0.390, P<0.01) and GAD-7 (r=-0.376, P<0.01) were both negatively correlated with social support.Regression analysis showed that training years,salary satisfaction,objective social support and the availability of support were significant for predicting the scores of PHQ-9(adjusted R2=0.242,F=17.893), work experience, salary satisfaction,objective social support and the availability of support were significant for predicting the scores of GAD-7(adjusted R2=0.228,F=14.390).After controlled the demographic variables, social support explained the variation rate of 0.119 to the score of PHQ-9 and 0.126 to the score of GAD-7.Conclusion The depression and anxiety of standardized training residents in this study is in a serious situation.Providing the objective social support and the availability of support as well as improving the salary satisfaction of standardized training residents may relieve the depression and anxiety and enhance their mental health.

Objective:To explore the effect of physical activity trajectories on cognitive function in middle-aged and older adults.Methods:Based on data from the China Health and Retirement Longitudinal Study (CHARLS) from 2011 to 2020, 809 participants aged ≥45 were selected. General data, physical activity levels, and cognitive function were collected. The group-based trajectory model (GBTM) was used to establish the physical activity trajectory model, and multiple linear regression was applied to investigate factors affecting cognitive function in middle-aged and older adults and to analyze the relationship between physical activity trajectories and cognitive function.Results:The cognitive function score for the 809 middle-aged and older adults was (11.71±4.60), and the logarithmic metabolic equivalent of physical activity was (8.38±1.06). Based on GBTM, four physical activity trajectories were identified: stable group, slow-increase group, rapid-decrease group, and stable-decrease group. Multiple linear regression analysis showed that the stable and slow-increase activity trajectories, gender, age, marital status, and retirement status were significant factors influencing cognitive function in middle-aged and older adults ( P<0.01) . Conclusions:Physical activity trajectories are associated with cognitive function in middle-aged and older adults. Maintaining stable or slowly increasing physical activity is beneficial for cognitive health. Nurses should design targeted interventions based on factors influencing cognitive function.

【Objective】 To investigate the risk factors of vasovagal reactions(VVR) related to plasma donation, so as to put forward clinical suggestions for early identification and accurate intervention of high-risk groups to ensure the safety of plasma donation. 【Methods】 The demographic characteristics(i.e. gender, age, weight) and records of plasma donors(donation history, pulse before plasma donation, duration of collection, etc.) were collected from July to December 2019 in a region of Sichuan. Based on logistic regression analysis, the correlation between these factors and the risk of VVR was explored. 【Results】 The information of 69 172 donors was collected, and the incidence of VVR was 7.04‰. The risk of VVR was reduced by 99% in the group with plasma collection duration less than 30 minutes compared with the group with plasma collection duration more than 50 minutes(OR, 0.01; 95% CI, 0.00~0.01; P<0.001). The risk of male group was 94 % lower than that of female group(OR, 0.06; 95% CI, 0.04~0.10; P<0.001). Compared with the 45~50 kg group, the risk of weight greater than 80 kg group decreased by 80%(OR, 0.20; 95% CI, 0.09~0.42; P<0.001). The risk of repeated donation group was 34 % lower than that of the first time donation group(OR, 0.66; 95% CI, 0.47~0.91; P<0.001). The risk of VVR in the group with pulse greater than 90 bpm before plasma donation was 2.43 times that in the 60~69 bmp group(OR, 2.43; 95% CI, 1.75~3.36; P<0.001). 【Conclusion】 Duration of plasma collection, gender, weight, frequency of plasma donation, pulse before plasma donation and donor status are independent risk factors for plasma donation-related VVR. Among them, plasma collection duration, gender and weight were the main independent risk factors for plasma donation-related VVR. For donors with plasma collection duration more than 50 minutes, female and low weight, higher risk of VVR was presented and more preventive intervention should be given.