Effectiveness of the Waksberg telephone sampling method for the selection of population controls.
Effectiveness of the Waksberg telephone sampling method for the selection of population controls.
复制标题
瓦克斯伯格电话抽样方法对于选择人口控制的有效性。
DOI：
10.1093/oxfordjournals.aje.a116898
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发表时间：
1993
影响因子：
5
通讯作者：
Whelton,PK
中科院分区：
文献类型：
--
作者：
Perneger,TV;Myers,TL;Klag,MJ;Whelton,PK
1991年，在马里兰州、弗吉尼亚州、西弗吉尼亚州和华盛顿特区进行了一项基于人群的病例对照研究，在选择对照对象的过程中，对Waksberg电话抽样方法的有效性及其实施的实际方面进行了评估。两阶段抽样程序的第一阶段相当于简单随机抽样。选择的每个电话号码最多拨打13次，以确定连接类型。住宅连接在第二阶段通过改变最后两位数字来生成额外的电话号码。总的来说，3860个电话号码代表1311个住宅。住宅的比例在第二阶段（54%）高于第一阶段（11%），而“不在服务”的比例则较低（分别为12%和67%）。与简单的随机抽样程序（最多18522个）相比，拨打的电话（8735个）要少。住宅的地理分布在两个采样阶段是相似的。在入组结束时，每个抽样单位有9.8个居民，但只有64%的居民是9-11人。筛查的依从率为96%（1,311个住户中有1,259个），访谈的依从率为90%（403个住户中有362个），总体依从率为86%。相对于简单的随机抽样，Waksberg方法大大减少了电话总数，但抽样过程管理起来更复杂。这种方法特别适用于选择人口控制时，住宅连接密度低，感兴趣的变量在抽样单位内不均匀。随机数字拨号仍然是选择人口控制的有效方法。
The effectiveness of the Waksberg telephone sampling method and practical aspects of its implementation were evaluated during the selection of control subjects for a population-based case-control study conducted in Maryland, Virginia, West Virginia, and Washington, DC, in 1991. The first stage of the two-stage sampling procedure was equivalent to simple random sampling. Each telephone number selected was dialed up to 13 times to establish the type of connection. Residential connections were used to generate additional telephone numbers in the second stage by changing the last two digits. Overall, 3,860 telephone numbers yielded 1,311 residences. The proportion of residences was higher in the second stage (54%) than in the first (11%), while that of numbers “not in service” was lower (12% vs. 67%, respectively). Fewer calls (8,735) were made than would have been required by a simple random sampling procedure (up to 18,522). The geographic distribution of residences was similar at both stages of sampling. At the end of enrollment, each sampling unit had yielded 9.8 residences, but only 64% reached 9–11 residences. Compliance rates were 96% for screening (1,259 of 1,311 residences), 90% for interviewing (362 of 403), and 86% overall. Relative to simple random sampling, the Waksberg method considerably reduced the total number of telephone calls, but the sampling process was more complex to manage. This method is particularly suitable for selecting population controls when the density of residential connections is low and variables of interest are not homogeneous within sampling units. Random digit dialing remains an effective method for selecting population controls.