Zheng Y M, Guan X X, Mao L J, Guan L, Zhang Y L, Li S Q, Zhao Z M
Department of Occupational Diseases, Peking University Third Hospital, Beijing 100191, China.
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2020 Jun 20;38(6):447-450. doi: 10.3760/cma.j.cn121094-20190729-00324.
To compare the clinical and imaging characteristics of patients with stage I coal worker's pneumoconiosis (CWP) . All 347 cases of coal workers' pneumoconiosis diagnosed in the Third Hospital of Peking University from January 2014 to December 2018 were included in the study. According to different working posts, the subjects were divided into three categories: mining, tunneling and mixing workers. Dust exposure duration, initial dust exposure age, diagnosis age, latency, small shadow shape and lung regions distribution in X-ray chest film of different categories of CWP patients were analyzed. Among the 347 patients, 216 were mining workers (62.2%) , 77 were tunneling workers (22.2%) and 54 were mixing workers (15.6%) . The dust exposure duration of mining, tunneling and mixing workers were (14.5±7.0) , (16.3±8.2) and (19.0±8.8) years, respectively. There are statistically significant differences in dust exposure duration between different categories of workers (<0.05) . There were no significant difference in the age of diagnosis, initial dust exposure age and the latency between different categories of workers (>0.05) . The X-ray films of mining, tunneling and mixing workers showed small round shadow, accounting for 50.9% (110/216) , 96.1% (74/77) and 96.3% (52/54) respectively. 48.1% (104/216) of the mining workers and 38.9% (21/54) of mixing workers, the distribution of small shadow in chest X-ray films reached middle and lower lung regions, while in the 48.1% (37/77) of the tunneling workers, the distribution of small shadow in chest X-ray films reached lower lung regions. There were differences in above indicators among workers with different categories (<0.05) . The dust exposure duration, the shape and the distribution of lung area on chest X-ray films are different in stage I CWP patients of different occupational categories.
比较I期煤工尘肺（CWP）患者的临床和影像学特征。纳入2014年1月至2018年12月在北京大学第三医院确诊的347例煤工尘肺患者。根据不同工作岗位，将研究对象分为三类：采煤工、掘进工和混合工种工。分析不同类别CWP患者的粉尘接触时长、初次接触粉尘年龄、诊断年龄、潜伏期、X线胸片中小阴影形态及肺区分布情况。347例患者中，采煤工216例（62.2%），掘进工77例（22.2%），混合工种工54例（15.6%）。采煤工、掘进工和混合工种工的粉尘接触时长分别为（14.5±7.0）年、（16.3±8.2）年和（19.0±8.8）年。不同工种间粉尘接触时长差异有统计学意义（<0.05）。不同工种间诊断年龄、初次接触粉尘年龄和潜伏期差异无统计学意义（>0.05）。采煤工、掘进工和混合工种工的X线胸片均显示小圆形阴影，分别占50.9%（110/216）、96.1%（74/77）和96.3%（52/54）。48.1%（104/216）的采煤工和38.9%（21/54）的混合工种工，X线胸片中小阴影分布达中下肺区，而48.1%（37/77）的掘进工，X线胸片中小阴影分布达下肺区。不同工种间上述指标存在差异（<0.05）。不同职业类别的I期CWP患者的粉尘接触时长、胸片肺区形态及分布不同。
