Anderson D W, Kalsbeek W D, Hartwell T D
J Neurosurg. 1980 Nov;Suppl:S11-8.
The National Head and Spinal Cord Injury Survey was designed to provide statistics that measure the morbidity and economic costs of injury to the head or spinal cord for the population in the contiguous United States for the year 1974. This article described the multistage design that was used for sampling in the survey, and includes general remarks on random and probability sampling. The criteria for eligibility for the survey and the methodology for data collection are also discussed. It is necessary to understand these aspects of the survey in order to interpret the findings.
《全国头部和脊髓损伤调查》旨在提供统计数据，用以衡量1974年美国本土人口头部或脊髓损伤的发病率和经济成本。本文描述了该调查中用于抽样的多阶段设计，并包括对随机抽样和概率抽样的一般性评论。还讨论了该调查的资格标准和数据收集方法。为了解释调查结果，有必要了解调查的这些方面。
