Objective To investigate the relationship between body fat distribution and pulse wave velocity (PWV) in middle-aged and aged population. Methods Two hundred patients received health examination were enrolled into the male group (103 cases) and the female group (97 cases). Visceral fat volume (VFV), subcutaneous fat volume (SFV) and ba-PWV were determined. Results Compared to patients in the female group, patients in the male group had significantly higher VFV values [(3.17 ± 0.84) kg vs (2.30 ± 0.94) kg], and lower SFV values [(15.56 ± 3.49) kg vs (17.69 ± 4.82) kg], In the male group, there existed a positive correlation between ba-PWV and age, VFV, fasting blood glucose,SBP and DBP. In the female group, a positive correlation was found between ba-PWV and age, SFV, TG, BUN, SBP and DBP, while a negative correlation was observed for HDL-C and Apo A1. Conclusion There was gender differences in body fat distribution in middle-aged and aged healthy population. In the male group , age, VFV, SBP, and DBP were the only independent and significant risk factors for ba-PWV. In the female group , age, SBP and Apo A1 were the independent risk factors for ba-PWV.

Objective:To explore the status quo of self-learning readiness of in-service nurses in self-taught examination and its correlation with general self-efficacy.Methods:Convenience sampling method was conducted with nurses who studied in the self-taught nursing examination of a university from a university in Sichuan Province from March to May 2020. General information questionnaire, Chinese version of Self-regulated Learning Readiness Scale for Nursing Education (SLDRS) and General Self-Efficacy Scale (GSES) were used to investigate the research. SPSS 24.0 was used to analyze the scores, multiple linear stepwise regression analysis was used to analyze the influencing factors, and Pearson correlation analysis was used to analyze the correlation between self-learning readiness and general self-efficacy. A total of 468 questionnaires were collected and 455 were valid.Results:The total scores of 455 nurses were (147.93±18.07) points, and the overall average scores were (3.70±0.45) points. Multiple linear stepwise regression analysis showed that the desire to continue to study for postgraduate students, the times of face-to-face classes in each subject, the preference for nursing major, aimlessness and satisfaction with the forms of assistance were the important influencing factors of autonomous learning readiness ( P<0.05). There is a positive correlation between self-learning readiness and general self-efficacy ( r=0.551, P<0.05). Conclusion:The self-learning readiness of nurses for self-taught examination is at a medium level. Their self-learning ability may be improved by encouraging them to carry out career planning, improving their professional identity and self-efficacy, and choosing teaching methods that are more suitable for in-service staff.