IGF::OT::IGF HEIGHT AND WEIGHT DATA TO CALCULATE A VALID MEASURE OF BODY MASS INDEX POP: 09/19/2016 - 09/18/2017

在美国，33%的18岁及以上的成年人患有肥胖症，在过去的30年里，肥胖症的患病率稳步上升。肥胖会增加个人患癌症的风险，特别是乳腺癌、结直肠癌、子宫癌、食道癌、肾癌和胰腺癌。身体质量指数(BMI)是一种测量肥胖的低成本方法，计算方法为体重(公斤)除以身高(米)的平方。这项研究的目的是：1)从机动车管理局(DMV)获得有关身高和体重的数据，并链接到癌症登记中特定地区的病例样本(从以前为其他研究收集的数据中获得的身高和体重)，(例如，使用登记作为样本框架的流行病学研究、护理模式研究等)；2)比较使用医疗记录计算的个人BMI与使用DMV记录计算的相同测量。BMI将根据一段时间内的机动车管理局记录计算，以确定BMI的任何变化。3)确定车管所记录是否为用于研究目的的身高和体重数据的有效来源。

In the United States (US), 33% of adults ages 18 and older are obese, and the prevalence of obesity has steadily increased over the past three decades. Obesity increases an individual’s risk of developing cancer, particularly breast, colorectal, uterine, esophageal, kidney, and pancreatic cancers. Body mass index (BMI) is a low cost method to measure obesity and is calculated as weight in kilograms divided by height in meters squared. The objectives of this study are to: 1) Obtain data on height and weight from the Department of Motor Vehicles (DMV) and link to a sample of cases from a specified region in the cancer registry (the height and weight to be obtained from data previously collected for other studies, (i.e. epidemiologic studies using the registry as a sampling frame, Patterns of Care studies, etc.), 2) Compare BMI for individuals computed using medical records to the same measure computed using DMV records. BMI will be calculated from the DMV records over time to determine any change in the BMI. 3) Determine the whether the DMV records are a valid source of height and weight data for research purposes.