农民肺发病率的季节性变化。
Seasonal variation in the incidence of farmer's lung.
作者信息
Terho E O, Lammi S, Heinonen O P
出版信息
Int J Epidemiol. 1980 Sep;9(3):219-20. doi: 10.1093/ije/9.3.219.
PMID:7440044
Abstract
The seasonal variation in the incidence of 78 consecutive cases of farmer's lung was investigated according to a statistical method described by Roger. The cyclic trend was statistically highly significant (P less than or equal to 0.0001) and the centre of gravity of incidence appeared in the latter half of April. The reasons for the variation are discussed.
摘要
根据罗杰所描述的统计方法，对连续78例农民肺病例的发病率季节性变化进行了调查。周期性趋势在统计学上具有高度显著性（P≤0.0001），发病重心出现在4月下旬。对这种变化的原因进行了讨论。
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