Random Digit Dialing Methodology for the 21st Century

21 世纪的随机数字拨号方法

• 批准号: 7302096
• 负责人: Lynda Fay Voigt
• 金额: $ 24.64万
• 依托单位: FRED HUTCHINSON CANCER RESEARCH CENTER
• 依托单位国家: 美国
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-10 至 2009-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7302096
• 关键词: Age; Age-Years; Breast; Cancer Etiology; Case-Control Studies; Cellular Phone; Characteristics; Control Groups; Data; Diagnosis; Diet; Digit structure; Eligibility Determination; Epidemiologic Studies; Family history of; Future; Gender; General Population; Household; Individual; Interview; Life Style; Malignant Neoplasms; Malignant neoplasm of testis; Methodology; Methods; Population; Population Control; Process; Recording of previous events; Recruitment Activity; Reporting; Respondent; Sampling; Services; Telephone; Telephone Interviews; Telephone Number; Testing; Time; United States; Woman; base; comparison group; interest; men; residence; response; tool

DESCRIPTION (provided by applicant): Random digit dialing (ROD) has been a valuable tool for recruiting controls for population-based case-control studies in the United States for more than twenty years. Traditional ROD methods screen only households with landline telephones for study eligibility. The overall proportion of households with cellular but no landline telephone service has increased rapidly from 2% in 2003 to 10% in 2005. There is evidence that this proportion will continue to increase in the future. Since individuals with cellular-only telephone service are younger, less affluent and less likely to be married than the general population, the sampling frame for traditional landline ROD may be particularly unrepresentative of these groups. However, there are only limited available data regarding differences in lifestyle characteristics between individuals with cell phone- only service versus those with landline service which are relevant to many epidemiologic studies. It is unclear if it is feasible to include cellular telephones in ROD sampling frames and if characteristics of individuals with only cell phones are different enough from those with landline telephones to warrant the additional effort and expense. The proposed study will develop, field test and evaluate a dual-frame ROD sample that will include both landline and cellular telephones. Five hundred fifty randomly selected men and women 20-44 years of age with cellular telephones, but no landline telephone service, will be identified and interviewed by telephone. Selected characteristics of these men and women will be compared to 800 respondents of the same age and gender with landline telephones recruited using traditional ROD methods for two case-control studies conducted during similar time periods. The results of this study will have important implications for the future use of ROD for epidemiologic studies. Lav description: A common way of studying the causes of cancer is to compare the characteristics (such as diet, medical history, and family history) of people diagnosed with cancer to a control group of people without cancer. One of the most useful methods of identifying a good control group is a process called random digit dialing (ROD), which involves recruiting controls by dialing randomly generated phone numbers. Traditional ROD has excluded people who only have a cell phone, and so this study will evaluate the extent to which excluding these people could bias studies that investigate the causes of cancer, since the characteristics of people who only have a cell phone may be different from those who have a landline phone.

描述(由申请人提供)：二十多年来，随机数字拨号(Rod)一直是美国人口病例对照研究招募控制的宝贵工具。传统的Rod方法只对拥有固定电话的家庭进行研究资格筛选。有蜂窝但没有固定电话服务的家庭的总体比例从2003年的2%迅速增加到2005年的10%。有证据表明，这一比例未来将继续增加。由于只使用蜂窝电话服务的人比一般人更年轻、不那么富裕，结婚的可能性也更小，传统固定电话线的抽样框架可能特别不能代表这些群体。然而，与许多流行病学研究相关的关于只使用手机服务的人与使用固定电话服务的人之间生活方式特征差异的现有数据有限。目前尚不清楚将移动电话纳入Rod抽样框架是否可行，也不清楚只有移动电话的人的特征与拥有固定电话的人的特征是否足够不同，从而值得付出额外的努力和费用。拟议的研究将开发、现场测试和评估包括固定电话和蜂窝电话在内的双框架Rod样本。将随机挑选550名年龄在20-44岁之间、有移动电话但没有固定电话服务的男性和女性，通过电话进行确认和访谈。这些男性和女性的选定特征将与800名相同年龄和性别的受访者进行比较，这些受访者使用固定电话，使用传统的Rod方法，在类似时间段进行两项病例对照研究。这项研究的结果将对未来使用Rod进行流行病学研究具有重要意义。LAV描述：研究癌症病因的一种常见方法是将确诊为癌症的人的特征(如饮食、病史和家族史)与未患癌症的对照组进行比较。识别一个好的控制组的最有用的方法之一是一个被称为随机数字拨号(Rod)的过程，它涉及通过拨打随机生成的电话号码来招募控制组。传统的Rod排除了只有手机的人，因此这项研究将评估排除这些人可能在多大程度上偏向调查癌症原因的研究，因为只有手机的人的特征可能与拥有固定电话的人不同。