Most epidemiological studies of ARF in the critically ill have been based at single centers, or have examined exposures at single time points using discrete outcomes( e. g., in-hospital mortality).
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- 危重病ARF大部分流行病学研究都建立在单中心研究基础上,或者利用不连续资料结果(患者住院死亡率)单个时间点暴露获得。