Specifically, the demonstration is performed by linking data sources associated with the Lung Cancer SPORE awarded to The University of Texas MDAnderson Cancer Center at Houston and the Southwestern Medical Center at Dallas.
We examined the relationship between outdoor temperature and seasonality with blood pressure by linking data from a national longitudinal study with weather information available from satellite and ground-level assessments.
We ascertained vital status from 1 January 1993 through 31 December 2000 by linking data on our study subjects with computer-stored data on deaths that is derived by probabilistic matching of KPSC membership data with California death files.
Study staff identified incidence data on prostate cancer by using spontaneous reporting from major local hospitals in the study area to ascertain cases and by linking data from population-based cancer registries, with permission from the local governments responsible for the registries.
Specifically, by linking data from a population-based diabetes registry with those from a drug use registry and a cancer registry, they effectively followed medication use in over 8,000 diabetic individuals and ascertained over 700 incident cancers.
This is the first analysis we are aware of that addresses As exposure within a population by linking biometric data with environmental data that include air, water, and food exposure, with the latter measured using both food frequency questionnaire (FFQ) and fish consumption survey (FCS) results.
In our current study, the accuracy of case ascertainment (correct identification of patients with a first-ever emergency admission for cancer) was improved by linking hospital data with primary care data for a ten-year study period.
Furthermore, recent studies have demonstrated the possibility of re-identifying research participants from anonymized genetic data [ 17- 19] by linking such data with freely available information in the public domain, such as familial database records, and demographic information obtained through Internet searches [ 10, 18, 20- 22].
This study addressed a significant gap in health services research on cervical (and other) screening participation by linking administrative data with extensive survey data from a community sample.
Secondary diagnoses of chronic respiratory diseases and cardiac diseases were validated by linking the data with the Hospital Morbidity Database (HMD) which captures all hospitalization in Canada and with the NACRS database.
