我院教师所著论文“Effect of Textual Features on the Success of Medical Crowdfunding: Model Development and Econometric Analysis from the Tencent Charity Platform”被国际顶级期刊《Journal of Medical Internet Research》录用发表，刘启华教授是该论文的通讯作者。《Journal of Medical Internet Research》（IF=5.03）是医学信息学领域（Medical Informatics）全球排名第二的国际顶级期刊，中科院SCI一区期刊。

题目：文本特征对医疗众筹项目成功率的影响—基于腾讯公益数据的模型构建与计量分析

摘要

背景：医疗众筹帮助经济困难的患者解决医疗资金短缺问题，在世界范围内迅速发展，但项目成功率较低、筹款能力不强，面临发展困境。因此，哪些项目特征会对医疗众筹项目的筹款结果产生影响是一个很重要的研究问题，但现有文献尚未进行深入研究。

目标：本文使用腾讯公益平台的4903个真实的医疗众筹项目数据，结合亚里士多德的说服理论，将医疗众筹的项目文本分为项目标题和项目详情，并分别从存在和程度两个角度进行分析，从而发现项目文本特征对医疗众筹项目成功率的影响。

方法：本文构建了一个研究框架，其主要包括五个部分：（1）使用Python程序从腾讯公益平台采集项目数据并进行预处理；（2）在前人的研究和说服理论的基础上，选取变量，构建研究模型；（3）使用情感分析和文本挖掘方法从项目文本中抽取变量；（4）使用多元回归方法进行计量分析；（5）对计量分析结果进行讨论，从而得到结论。

结果：在项目标题中，患者疾病和职业的存在对筹款成功率有积极影响，而年龄、性别和负面情绪的存在对筹款成功率有消极影响。在项目详情中，患者职业、金钱证据和消极情绪的存在对筹款成功率起正向作用，而年龄和积极情绪的存在对筹款成功率起负向作用。此外，在项目详情中，关于金钱的描述和消极词出现频率越高，文本长度越简短，医疗众筹项目成功率越高。同时，与年老的患者相比，年龄较小的患者更有可能获得较高的筹款成功率。

结论：本研究从腾讯公益平台采集了4903个真实的医疗众筹项目数据，从存在和程度两个角度分析项目文本对医疗众筹成功率的影响。研究发现，除了项目详情外，项目标题中的文本特征对筹款成功率也有重要影响。本文不仅有助于拓展医疗众筹研究理论和方法，而且可以为医疗众筹求助者描述项目信息、众筹平台设计信息发布机制提供参考。

Title：Effect of Textual Features on the Success of Medical Crowdfunding: Model Development and Econometric Analysis from the Tencent Charity Platform

Abstract

Background: Medical crowdfunding utilizes the internet to raise medical funds. Medical crowdfunding has developed rapidly worldwide; however, most medical crowdfunding projects fail to raise the targeted funds. Therefore, a very important research problem that has not received sufficient attention from the existing literature is identifying which factors affect the success of medical crowdfunding projects.

Objectives: The aim of this study was to examine the effect of textual features of medical crowdfunding projects on their success rate using 4903 real projects from the Tencent Charity platform, a well-known medical crowdfunding platform in China. In particular, according to Aristotle’s theory of persuasion, we divided the project text of medical crowdfunding into the project title and project details, which were analyzed from two perspectives (existence and extent) to explore their respective impacts.

Methods: We established a research framework to meet our research goals. The process was divided into five main parts. We first collected data from Tencent Charity using Python programs and cleaned the datasets. Second, we selected variables and built the research model based on previous studies and the theory of persuasion. Next, the selected variables were extracted from the project text. We then performed econometric analysis using multiple regression analysis. Finally, we evaluated the results of econometric analysis to extract knowledge.

Results: In the project title, the presence of the patient’s disease (P=.04) and occupation (P=.01) had a positive impact on the success rate of fundraising, whereas the presence of age (P<.001), gender (P=.001), and negative emotions (P=.04) had a negative impact. In the project details, the presence of the patient’ s occupation (P=.01), monetary evidence (P=.02), and negative emotions (P=.04) played a positive role in fundraising success rate, whereas the presence of age (P<.001) and positive emotions (P<.001) played a negative role. Moreover, in the project details, high-frequency monetary evidence (P=.02) and negative words (P=.02), as well as a short narrative length (P=.01) were conducive to succeeding in medical crowdfunding. Younger patients were more likely to obtain a higher success rate in medical crowdfunding. For patients whose occupations were national civil servant, professional skill worker, clerk, business and service worker, solider, child, student, and public-spirited person, the success rate of fundraising decreased sequentially.

Conclusions: This study collected 4903 valid data from Tencent Charity, and identified which factors in the project text play an important role in the success rate of medical crowdfunding from the perspective of existence and extent. We found that in addition to the project details, the features of the project title also have an important impact on the success rate of fundraising. These findings provide important theoretical and managerial implications for medical crowdfunding.