...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Annals of epidemiology >Do cases and controls matched on the first eight digits of their telephone number share geographic proximity and socioeconomic characteristics?
【24h】

Do cases and controls matched on the first eight digits of their telephone number share geographic proximity and socioeconomic characteristics?

机译：在电话号码的前八位数字匹配的案例和控件是否具有地理上的接近性和社会经济特征？

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

PURPOSE: The aim of this study is to assess the geographic proximity of cases and controls who share the same "stem" of their telephone number (area code, prefix, and next two digits) and compare their socioeconomic characteristics. METHODS: We compared residential proximity and characteristics of case-control sets selected in this way with sets consisting of the same cases matched to different controls on all variables except telephone number stem. RESULTS: Mean distance between telephone stem-matched pairs was much less than that between pairs not matched by telephone number stem (3.53 and 20.14 km, respectively). There was slight agreement between cases and controls for some measures of socioeconomic status in both sets. We also compared distances between residences of control respondents who shared the same telephone number stem with those between residences of respondents who shared only the same telephone area code and prefix. Mean distances for the two groups were similar. CONCLUSIONS: Geographic proximity between cases and controls can be achieved by matching on either telephone number stem or only telephone area code and prefix. Adjustment for socioeconomic factors may be needed even if cases and controls live close to each other.
机译：目的：本研究的目的是评估病例和对照者在地理上的接近性，这些病例和对照者的电话号码（区号，前缀和后两位数字）具有相同的“词干”，并比较其社会经济特征。方法：我们比较了以这种方式选择的案例控制集与住宅相似性和由相同案例组成的集合，这些案例匹配了除电话号码词干以外的所有变量上的不同控件。结果：与电话干匹配的电话对之间的平均距离远小于未与电话干匹配的电话对之间的平均距离（分别为3.53和20.14 km）。案例和对照之间在两组方面都采取了一些社会经济地位衡量标准，这方面没有什么共识。我们还比较了共享相同电话号码的对照受访者住所之间的距离与仅共享电话区号和前缀相同的受访者住所之间的距离。两组的平均距离相似。结论：案例和控件之间的地理接近性可以通过匹配电话号码主干或仅匹配电话区号和前缀来实现。即使病例和对照之间的距离很近，也可能需要对社会经济因素进行调整。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号