Raw data.

Objectives
This study aimed to explore the correlation between the sentiment of nursing notes and the one-year mortality of sepsis patients.
Methods
The box plot was used to compare the differences in sentiment polarity/sentiment subjectivity between different groups. Multivariate logistic regression was used to explore the correlation between sentiment polarity/sentiment subjectivity and one-year mortality of elderly sepsis patients. Ridge regression, XGBoost regression, and random forest were used to explore the importance of sentiment polarity and subjectivity in the one-year mortality of elderly sepsis patients. Restricted cubic spline (RCS) was used to explore whether there was a linear relationship between sentiment polarity, sentiment subjectivity and the one-year mortality of elderly sepsis patients. Kaplan-Meier (KM) curve was used to explore the relationship between the sentiment polarity (or sentiment subjectivity) and the 1-year death of the patient.
Results
Compared with the control group, the one-year mortality group year had lower sentiment polarity and higher sentiment subjectivity. Sentiment polarity and sentiment subjectivity were independently related to the one-year mortality of elderly sepsis patients. There was a linear relationship between sentiment polarity and the one-year mortality of elderly sepsis patients. At the same time, there was a nonlinear relationship between sentiment subjectivity and the one-year mortality of elderly sepsis patients.KM.
Conclusions
The sentiment of nursing notes was correlated with the one-year mortality of elderly sepsis patients.

研究目的
本研究旨在探讨护理记录的情感倾向与脓毒症患者一年死亡率之间的相关性。
研究方法
本研究采用箱形图（box plot）对比不同组别间情感极性（sentiment polarity）与情感主观性（sentiment subjectivity）的差异。采用多因素logistic回归分析，探究老年脓毒症患者的情感极性、情感主观性与一年死亡率之间的相关性。分别采用岭回归（ridge regression）、XGBoost回归、随机森林（random forest），分析情感极性与主观性在老年脓毒症患者一年死亡率预测中的重要性。采用限制性立方样条（restricted cubic spline, RCS），探究情感极性、情感主观性与老年脓毒症患者一年死亡率之间是否存在线性关联。采用Kaplan-Meier（KM）曲线，分析情感极性（或情感主观性）与患者一年死亡结局之间的关系。
研究结果
与对照组相比，一年死亡组患者的情感极性更低，情感主观性更高。情感极性与情感主观性均与老年脓毒症患者的一年死亡率独立相关。情感极性与老年脓毒症患者一年死亡率之间存在线性关联；同时，情感主观性与老年脓毒症患者一年死亡率之间存在非线性关联。
研究结论
护理记录的情感倾向与老年脓毒症患者的一年死亡率具有相关性。