多层线性模型在肺癌患者肿瘤进展中的应用

目的通过分析肺癌患者以随访方式收集的一组纵向数据,研究肺癌患者肿瘤大小随时间变化的趋势,同时分析这种变化趋势的个体症状之间的差异性。方法本文采用多层线性模型,对肿瘤发展的纵向数据进行了深入研究。首先对213例非小细胞肺癌患者进行了2年的随访记录,记录患者性别、是否抽烟、症状(咳嗽、痰中带血、胸痛、发热、神疲乏力)和肿瘤大小数据,然后通过建立多层线性模型分析肿瘤大小与患者性别、是否抽烟及患者所表现出症状之间的关系。结果通过对肺癌患者数据建立多层线性模型并进行数据分析,发现患者性别、是否抽烟与肿瘤的大小有密切关系,且不同个体特征对肿瘤大小的影响存在差异。结论多层线性模型可以分析肺癌患者肿瘤发展的纵向数据,得到肿瘤大小的发展趋势,并可以进一步分析这种趋势在个体之间的差异性。

Application of hierarchical linear model in the development of tumor in lung cancer

Objective By analyzing a set of longitudinal data collected from patients with lung cancer during follow-up,the trend of tumor size in patients with lung cancer was studied,and the differences between individual symptoms of this trend were analyzed.Methods In this paper,hierarchical linear model (HLM) was used to study the longitudinal data of tumor development.Firstly,we tracked 213 cases of non-small cell lung cancer patients for up to two years and recorded patient gender,the habit of smoking and some other related symptoms (cough,bloody sputum,chest pain,fever,god fatigue) and tumor size data.Then,through the establishment of hierarchical linear model,we analyzed the relationships between tumor size and gender,smoking,symptoms of the patients.Results By establishing HLM and analyzing the longitudinal data of cancer,we found that close relationships existed between the tumor size and the gender,the habit of smoking.Additionally,the effects of different individual characteristics to their tumor size were significantly different.Conclusions HLM can help to dig the longitudinal data of tumor development and obtain the development trend of tumor size,which can be further analyzed.