Trends in Nested Case- Control Studies as Compared to Case- Control and Cohort Designs, 1996- 2005
Year: 2006
Type: article
Abstract: Background & Objectives: This investigation was prompted by the growing importance of nested case-control studies and the increasing frequency with which they are done in epidemiologic research. After a brief explanation of nested case-control studies, we evaluate the trends in research methodology over the last decade, especially with regard to cohort, case-control, and nested case-control designs. Methods: Data for this study were extracted from the PubMed database, using these keywords: Nested Case-Control, Risk-Set Sampling and Density Sampling. The search was confined to the 10-year period from 1996 to the end of 2005. As for other methodologies, we used keywords Cohort and Case-Control for a search over the same time period. The search itself was performed on April 25, 2006. Results: We found 2011 articles reporting nested case-control studies. There were 95 such articles in 1996; the number had increased to 289 in 2005. Case-control and cohort designs accounted for 68456 and 60479 articles, respectively. The number of case-control articles rose from 4378 in 1996 to 10270 in 2005, while that of cohort articles increased from 2981 to 9771 over the same period.Conclusions: The number of cohort and nested case-control articles followed similar upward trends over the last decade and their rate of increase was greater than that of simple case-control articles.
Authors: Reza Chaman, Ahmad Reza Shamshiri, Koorosh Kamali, G.H.R. Khalili, K Holakouie Naieni
Language: English
Subfield: Statistics and Probability
Field: Mathematics
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2266895944