non agricultural inhabitants in the countryside ; obstructive factor; social security system; "price scisser
农村非农产业群体; 障碍因素; 社会保障制度; “剪刀差”
参考来源 - 我国农村非农产业群体的社会保障制度探析·2,447,543篇论文数据，部分数据来源于NoteExpress
Objective The aim of this study is to analyze relevant factor to patients' condition in obstructive sleep apnea-hypopnea syndrome (OSAHS) merging chronic obstructive pulmonary disease (COPD).
目的探讨阻塞型睡眠呼吸暂停低通气综合征(OSAHS)合并慢性阻塞性肺疾病(COPD)时，与病情严重程度相关的影响因素。
Methods Analysis of 250 cases of hospitalized patients with chronic obstructive pulmonary disease hospitalized with acute exacerbation factor.
方法：分析250例住院的慢性阻塞性肺疾病急性加重住院因素。
Smoking is a important factor in development of chronic obstructive pulmonary disease. However, not all smokers are patients of COPD, only above 20% smokers can become patients of COPD.
吸烟是慢性阻塞性肺疾病主要的发病因素，然而，不是所有吸烟者都患有COPD，只有约20%发生。
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