文中着重分析了在函数模型正确的前提下，采用不正确的随机模型对方差一致性检验统计量的影响，并给出了具体的影响公式。

Supposed the functional model is correct, the influence on the statistic of test for uniform variance with incorrect stochastic model is analyzed in detail and its formula is derived.

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根据资料一致性检验，采用随机效应模型(D - L法)计算合并相对危险度(RR)及其9%的可信区间(9% CI)。

Homogeneity showed that random effect model should be selected to calculate the pooling relative risk (rr) and its corresponding9%confide nce interval (9%ci).

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