risk category

The unconditional Logistic regression model suggested that the main risk factors of pulmonary dysfunction were various category of silicosis, medium or heavy smoking, long-term exposure to silica ( 30 years) and pulmonary tuberculosis.

非条件Logistic回归显示各期矽肺、中重度吸烟、接尘工龄30年是矿工肺功能障碍的危险因素。随矽肺晋级呼吸困难程度加重，肺功能障碍率升高，以限制性通气功能障碍为主。

The product category characteristics have significant effect on perceived risk; Classification complexity low, classification quality difference little, interval between twice deal long, price lower, products' perceive risk to be low. 3.

产品类别特征对感知风险有显著影响；类别复杂程度低、类别品质差异小、购买间隔时间较长、价位较低的产品感知风险比较低。

However, the study specifically showed a reduced risk of dying from IHD of around four per cent for each additional portion of fruit and veg consumed above the lowest category, which was those who ate two or fewer portions.

研究充实指出，对于那些摄取蔬果量处于做低标准的人，也就是每日仅有2份的人来说，饮食中每增加一份的蔬果比重，患上缺血性心脏病的几率就将缩小4%。

Intravenous drug users are in a high-risk category for hepatitis C.

静脉注射毒品的人是患丙型肝炎的高危人.

The risk degree of clearing participants is divided into category of normal risks, category of concerned risks and category of high risks.

结算参与人风险程度分为正常类、关注类和高风险类。