Pilpel D, Fraser G M, Kosecoff J, Brook R H
Epidemiology Unit, Soroka Medical Center, Beer Sheva, Israel.
Isr J Med Sci. 1993 May;29(5):287-91.
Substantial interest exists in variations in the use of surgical procedures by specific populations. Studies of this issue are often based on routinely collected data that are maintained in central computer systems. In this study a method is presented for examining the validity of such a database, which is maintained by Kupat Holim, in terms of sensitivity and positive predictive value by comparing its data to data from other information sources, such as operating room log books and in-patient medical records. The validation process was performed in Israel for three surgical procedures: cholecystectomy and prostatectomy each in four hospitals and hysterectomy in two hospitals. The sensitivity of the computerized database ranged from 90% to 98% and the positive predictive value from 96% to 99%. We conclude that the centrally maintained computerized database is a reliable source of information, however, when extremely accurate information is needed the use of complementary sources of information, e.g., operating room logbooks, is recommended.
特定人群在外科手术使用方面的差异存在着极大的研究兴趣。关于这个问题的研究通常基于保存在中央计算机系统中的常规收集数据。在本研究中，提出了一种方法来检验由Kupat Holim维护的此类数据库的有效性，即通过将其数据与其他信息来源（如手术室日志和住院病历）的数据进行比较，来评估其敏感性和阳性预测值。验证过程在以色列针对三种外科手术进行：四家医院的胆囊切除术和前列腺切除术，以及两家医院的子宫切除术。计算机化数据库的敏感性范围为90%至98%，阳性预测值为96%至99%。我们得出结论，中央维护的计算机化数据库是一个可靠的信息来源，然而，当需要极其准确的信息时，建议使用补充信息来源，例如手术室日志。
