计算机辅助电话调查在克山病随访中的应用

Application of computer-assisted telephone intervewing in the follow-up study of Keshan disease

目的探讨计算机辅助电话调查在地方病随访中的应用，为计算机辅助电话调查应用范围的扩展与大范围施行提供借鉴与依据。方法选择两个克山病病区省的146名克山病患者进行调查。调查内容主要包括病情随访问卷和心功能不全生命质量量表问卷。调查采用计算机辅助电话调查和面对面问卷调查两种方式进行。在为期18个月的随访调查中，在第3、6、12、15个月分别进行1次计算机辅助电话调查，在第9、18个月分别进行1次面对面问卷调查。对两种调查方法的耗时和质量状况进行比较。计算机辅助电话调查结果的数据库使用Epi Info3．32软件进行设计。结果计算机辅助电话调查平均耗时（13．10±1．80）min，面对面问卷调查平均耗时（22．04±2．28）min，两种调查方法耗时比较，差异有统计学意义（t=-36．214，P〈0．05）；计算机辅助电话调查出错率为6，80％（37／544），面对面问卷调查出错率为11.07％（28／253），两种方法出错率比较，差异有统计学意义（x2=4．195，P〈0．05）。计算机辅助电话调查质量优于面对面问卷调查。讨论通过计算机辅助电话调查提高了调查人员与分析人员在克山病随访过程中的工作效率．数据库的校验功能提高了问卷录入的正确率．同时可以节省大量的科研经费。

Objective To explore the application of computer-assisted telephone interviewing in the follow-up study of endemic diseases, and to provide a reference and basis for wide range application of this method. Methods In this investigation, 146 patients with Keshan disease from 2 provinces were recruited in. The study mainly included two questionnaire surveys： disease follow-up questionnaire survey and cardiac insufficiency quality of life scale survey. Survey methods included computer-assisted telephone survey and face-to-face questionnaire survey. In the 18-month of follow-up study, one computer-assisted telephone survey was done in the 3＇a,6s＇, 12~, 154 month, and one face-to-face questionnaire survey in 94 and 18~ month. Time-consuming and quality of the two survey methods were eompaired. The computer-assisted telephone survey database was designed using Epi Info 3.32 software. Results The computer-assisted telephone survey took an average of （13.10 ＋ 1.80）min, and face-to-face questionnaire survey took an average of （22.04 ~ 2.28）min, the difference was statistically significant （t = - 36.214, P 〈 0.05）. The error rate of computer-assisted telephone survey was 6.80% （37/544）, and that of face-to-face questionnaire survey was 11.07%（28/253）, the difference was statistically significant（x2 = 4.195, P 〈 0.05 ）. The quality of computer-assisted telephone survey was better than that of face-to-face questionnaire survey. Conclusions Through the computer-assisted telephone interviewing, the work efficiency of investigators is improved during the follow-up study of Keshan disease. The validation function improves the accuracy rate during the process of data entry. Because of the application of telephone contact, a lot of research funding is saved.