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- Title
Estimation of disease incidence in claims data dependent on the length of follow-up: a methodological approach.
- Authors
Abbas S; Ihle P; Köster I; Schubert I; Abbas, Sascha; Ihle, Peter; Köster, Ingrid; Schubert, Ingrid
- Abstract
<bold>Objective: </bold>To analyze the impact of the length of disease-free intervals on incidence estimation.<bold>Data Source: </bold>Statutory health insurance sample in Germany.<bold>Study Design: </bold>Overestimation of the incidence in the first quarter of 2008 for three selected diseases, diabetes mellitus, colorectal cancer, and heart failure, depending on different lengths of preceding disease-free intervals.<bold>Data Collection/extraction Methods: </bold>Continuously insured from 2000 until 2008 ≥ 18 years (N = 144,907).<bold>Principal Findings: </bold>Compared with an 8-year disease-free period, incidence overestimations for diabetes, colorectal cancer, and heart failure were 40, 23, and 43 percent defining a 1-year, and 5, 9, and 5 percent defining a 5-year disease-free period, respectively.<bold>Conclusions: </bold>Depending on the specific disease, caution has to be taken while using short disease-free periods because incidence estimates may be extremely overestimated.
- Publication
Health Services Research, 2012, Vol 47, Issue 2, p746
- ISSN
0017-9124
- Publication type
journal article
- DOI
10.1111/j.1475-6773.2011.01325.x