Zhong Y, Li D
Institute of Occupational Medicine, Chinese Academy of Preventive Medicine, Beijing, China.
Scand J Work Environ Health. 1995;21 Suppl 2:91-4.
Potential years of life lost (PYLL) and potential years of work lost (PYWL) because of pneumoconiosis were studied using the data from the Nationwide Epidemiological Study on Pneumoconioses in China. The cases were patients diagnosed with pneumoconiosis between 1949 and 1986. The subjects studied for PYLL included 74 741 cases ranging in age from 15 to 75 years, while for PYWL there were 74 224 cases with 1 to 35 years of remaining employment experience. Overall there were 1 489 692 potential years of life lost, and there was an average of 19.9 years for all pneumoconioses. Silicosis had the greatest mean PYLL with an average of 22.1 years. Coal workers' pneumoconiosis was the second leading cause of PYLL with an average of 17.0 years. The mean PYWL for all pneumoconioses was 19.7 years, and the mean PYWL from silicosis was 21.5 years. The conclusion was reached that silicosis is the most serious pneumoconiosis in China with regard to years of life lost, and chronic respiratory diseases such as chronic pulmonary disease and tuberculosis are the main causes of death for patients with pneumoconiosis.
利用中国全国尘肺病流行病学研究的数据，对因尘肺病导致的潜在寿命损失年数（PYLL）和潜在工作损失年数（PYWL）进行了研究。病例为1949年至1986年期间被诊断为尘肺病的患者。研究PYLL的对象包括74741例年龄在15岁至75岁之间的病例，而研究PYWL的有74224例，剩余工作年限为1至35年。总体而言，潜在寿命损失年数总计1489692年，所有尘肺病的平均损失年数为19.9年。矽肺病的平均PYLL最高，为22.1年。煤工尘肺是PYLL的第二大原因，平均为17.0年。所有尘肺病的平均PYWL为19.7年，矽肺病的平均PYWL为21.5年。得出的结论是，就寿命损失年数而言，矽肺病是中国最严重的尘肺病，慢性肺病和肺结核等慢性呼吸道疾病是尘肺病患者的主要死因。
