在工业上，潮湿的以天然气来照明的车间的环境有一些改进，但对于磨房主要弥补的逐渐升高的疾病率来说很牵强。
In industry some amelioration of the atmosphere in the steamy, gas-lighted workrooms was forced on mill owners to offset an increasing sickness rate.
在病例对照研究中，是否可用暴露比值比(EOR)作为CIR或IDR的无偏估计，取决于抽样方法和疾病率高低。
It depends upon the sampling methods and the size of the disease rate whether exposure odds ratio (EOR) in case-control studies can be used to estimate the CIR or IDR.
这种疾病的发生率在欧洲各地相当平均。
Incidence of the disease is fairly evenly spread across Europe.
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