定群观察寿命表法研究结核对矽肺期望寿命的影响

采用定群观察寿命表法，即由定群寿命表法计算的死于尘肺及与尘肺有关并发症的观察时间别病死率，用现时寿命表法，研究并发肺结核对矽肺期望寿命的影响。研究对象来自某钨矿１９５６～１９９１年间定诊为矽肺结核及定诊矽肺后曾并发过肺结核的患者，并以该矿单纯矽肺为对照。结果显示：定诊矽肺后结核组最终死于尘肺及尘肺并发症的平均寿命为１４．１９年，非结核组为２３．８５年；矽肺患者因曾并发过肺结核损失平均寿命９．６６年，不并发肺结核可使矽肺的平均寿命（病程）增加６８．０８％。提示防止并发肺结核是尘肺第三级预防的重点。本文还对定群观察寿命表法的原理、应用进行讨论，并与部分文献用寿命表对尘肺期望寿命研究的方法结果进行比较。

A Study on Lung Tuberculosis Af-fect the Average Length of Silcosis by Using the Method of Life Table

his article used the method of current life table for study the average length of sili-cosis complicated lung tuberculosis, it used the specific fatality rate of observed time of certain cause of pneumocomiosis and the complications caused by pneumocomiosis by using the method of cohort life table. The cases of the research group were the all of the patients with silico-tuberculosis and who complicated lung tuberc-ulosis since their silicosis diagnosed, in a met-allic mine, from 1956 through 1991. The casesof the control group were the totality of the patients with silicosis, without lung tubercalo-sis since their silicosis diagnosed, in the samemine and the same observed period. The res-ults showed that the average length of the re-search group were 14.19 years since theiv sili-cosis diagnosed, and the control group were23.85 year. The research group lost the aver-age length of 9.66 year. The results showed that to prevent complicating lung tuberculosis is the key of the third class prevention of pnueumoconiosis.