Missing Data in Cases of Dementia : An Analysis

Latha, KS and Kamath, Asha and Jathanna, Roopalekha (2009) Missing Data in Cases of Dementia : An Analysis. Indian Journal of Gerontology, 23 (4). pp. 411-417.

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When handling missing data, a researcher should be aware of the mechanism underlying the missingness. In the presence of nonrandomly missing data, a model of the missing data mechanism should be included in the analyses to prevent the analyses based on the data from becoming biased. Modeling the missing data mechanism, however, is a difficult task. One way in which knowledge about the missing data mechanism may be obtained is by collecting additional data from non-respondents. In this paper the method of re-approaching the data which was found missing is described. As the case files were accessible it could be retrieved and the patterns of missingness were discerned. The additional data resulted in a larger sample, probing for the causes of missingness resulted in more knowledge about the nature of the missing data patterns. Findings are discussed focused on the report of missing data and identification of missing data mechanism and finally recommendations are presented

Item Type: Article
Uncontrolled Keywords: Missing data, Dementia, Missing completely at Random
Subjects: Allied Health > MCOAHS Manipal > Health Information Management
Medicine > KMC Manipal > Community Medicine
Medicine > KMC Manipal > Psychiatry
Depositing User: KMC Manipal
Date Deposited: 14 Nov 2012 09:44
Last Modified: 14 Nov 2012 09:44
URI: http://eprints.manipal.edu/id/eprint/77577

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