importance of case definition

2012 Jun;33(3):261-71. doi: 10.1016/j.neuro.2012.01.014. A case definition must be clear, simple, and concise, allowing it to be easily applied to all individuals in the population of interest. Absent an outbreak, case definitions are used in the surveillance of public health in order to categorize those conditions present in a population (e.g., incidence and prevalence). Importance of case definition in epidemiological studies Neuroepidemiology. Results: 2008 Dec;17 Suppl 1:59-70. doi: 10.1007/s00787-008-1007-y. 2015 Sep;19(9):741-54. doi: 10.1177/1087054713513799. Epub 2018 Sep 28. For that, the epidemiologist uses a case definition. doi: 10.1016/j.jpeds.2019.06.025. Pain in veterans of the Gulf War of 1991: a systematic review. Lessons from the 1990-91 Gulf War. Neurocognitive Pathways in Attention-Deficit/Hyperactivity Disorder and White Matter Microstructure. Get the latest research from NIH: https://www.nih.gov/coronavirus. The prevalence of DSM-IV attention-deficit/hyperactivity disorder: a meta-analytic review. Epub 2005 May 23. A case definition is a set of standard criteria for classifying whether a person has a particular disease, syndrome, or other health condition. At baseline 1,060 caregivers were interviewed; 656 had at least 1 follow-up interview. Objective: In epidemiology, a clinical case definition, a clinical definition, or simply a case definition lists the clinical criteria by which public health professionals determine whether a person's illness is included as a case in an outbreak investigation—that is, whether a person is considered directly affected by an outbreak. Iannacchione VG, Dever JA, Bann CM, Considine KA, Creel D, Carson CP, Best H, Haley RW. Clipboard, Search History, and several other advanced features are temporarily unavailable. Epub 2018 Sep 29. Epub 2019 Jul 9. Number and unweighted percent (95% CI) of the screened Project to Learn about Attention Deficit/Hyperactivity Disorder (ADHD) in Youth sample with a parent- or teacher-reported ADHD diagnosis or medication use Note: Denominators reported above show the number of parents and teachers who responded to whether a child had been diagnosed or used medication. Number and unweighted percent (95% CI) of the screened Project to Learn about…, Depreciation in the number and percent (95% CI) of the baseline Project to…, Change in Attention Deficit/Hyperactivity Disorder…, Change in Attention Deficit/Hyperactivity Disorder prevalence (95% CI) after incorporating DSM-5 changes and…, NLM Kabwama SN, Bulage L, Nsubuga F, Pande G, Oguttu DW, Mafigiri R, Kihembo C, Kwesiga B, Masiira B, Okullo AE, Kajumbula H, Matovu JKB, Makumbi I, Wetaka M, Kasozi S, Kyazze S, Dahlke M, Hughes P, Sendagala JN, Musenero M, Nabukenya I, Hill VR, Mintz E, Routh J, Gómez G, Bicknese A, Zhu BP. This site needs JavaScript to work properly. Sanders S, Thomas R, Glasziou P, Doust J. BMC Psychiatry. Epub 2011 Oct 7. Validation of a research case definition of Gulf War illness in the 1991 US military population. 2019 Nov 7;9(11):e032327. Evidence of potential overdiagnosis and overtreatment of attention deficit hyperactivity disorder (ADHD) in children and adolescents: protocol for a scoping review. Haley RW, Charuvastra E, Shell WE, Buhner DM, Marshall WW, Biggs MM, Hopkins SC, Wolfe GI, Vernino S. JAMA Neurol. Case definitions are used in ongoing public health surveillance to track the occurrence and distribution of disease within a given area, as well as during outbreak investigations in field epidemiology. USA.gov. Thomas HV, Stimpson NJ, Weightman A, Dunstan F, Lewis G. BMC Musculoskelet Disord. DSM-5 changes in age of onset and number of symptoms required for older adolescents appear to increase prevalence estimates, although the full impact is uncertain due to the age of our sample. Keywords: These findings quantify the impact on prevalence estimates of varying case definition criteria for ADHD. Epub 2008 Jun 28. Declaration of Financial Conflicts of Interests. Int J Epidemiol.  |  Ms. Danielson reports no biomedical financial interests or potential conflicts of interest. 2008 Sep;49(9):942-9. doi: 10.1111/j.1469-7610.2008.01892.x. A large and persistent outbreak of typhoid fever caused by consuming contaminated water and street-vended beverages: Kampala, Uganda, January - June 2015. NLM  |  2019 Nov 12;19(1):357. doi: 10.1186/s12888-019-2337-7. The Importance of Case Law July 25, 2016 In addition to the guidelines themselves, case law helps to inform our understanding of how the guidelines work in a particular jurisdiction. Epub 2013 Dec 11. The conversations end up circling around, going nowhere. NIH DSM-5 changes in age of onset and number of sym …  |  Biol Psychiatry Cogn Neurosci Neuroimaging.  |  2019 Mar;4(3):233-242. doi: 10.1016/j.bpsc.2018.09.007. Depreciation in the number and percent (95% CI) of the baseline Project to Learn about Attention Deficit/Hyperactivity Disorder (ADHD) in Youth sample who met each level of ADHD diagnostic criteria. A review of changes to the attention deficit/hyperactivity disorder age of onset criterion using the checklist for modifying disease definitions. Dr. Visser reports no biomedical financial interests or potential conflicts of interest. A really good definition is generative. National Center for Biotechnology Information, Unable to load your collection due to an error, Unable to load your delegates due to an error. 2013 Feb;70(2):191-200. doi: 10.1001/jamaneurol.2013.596. Change in Attention Deficit/Hyperactivity Disorder prevalence (95% CI) after incorporating DSM-5 changes and inclusion of teacher report. 2005 Aug;34(4):791-800. doi: 10.1093/ije/dyi102. 2013 Feb;22 Suppl 1:S43-8. Kamimura-Nishimura KI, Epstein JN, Froehlich TE, Peugh J, Brinkman WB, Baum R, Gardner W, Langberg JM, Lichtenstein P, Chen D, Kelleher KJ. Clipboard, Search History, and several other advanced features are temporarily unavailable. Get the latest research from NIH: https://www.nih.gov/coronavirus. HHS Likely explanations for more teacher-reported data include that they received incentives, they were directly requested to complete them by school administrators, and they were able to complete classroom-sized batches of instruments. Objective evidence of autonomic dysfunction and the role of stress in the Gulf War syndrome. CC999999/Intramural CDC HHS/United States. The Prevalence of ADHD in a Population-Based Sample. FMRI reveals abnormal central processing of sensory and pain stimuli in ill Gulf War veterans. Parent and teacher reports identified high- and low-screen children with ADHD from elementary schools in 2 states that produced a diverse overall sample. Addressing Discrepancies Between ADHD Prevalence and Case Identification Estimates Among U.S. Children Utilizing NSCH 2007-2012.  |  Cholinergic autonomic dysfunction in veterans with Gulf War illness: confirmation in a population-based sample. 2011;37(2):141-2. doi: 10.1159/000332609. Use of a common case definition allows for standardization of the cases of interest both within an ongoing outbreak investigation and possibly between outbreak investigations that differ over time or geographic location. Biol Psychiatry Cogn Neurosci Neuroimaging. JAMA Neurol. See this image and copyright information in PMC. In contrast, imprecise definitions make it difficult to even agree on what we’re talking about. Parent-based prevalence rates in a national sample--results of the BELLA study.

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