IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) e-ISSN: 2279-0853, p-ISSN: 2279-0861.Volume 18, Issue 2 Ser. 11 (February. 2019), PP 63-69 www.iosrjournals.org DOI: 10.9790/0853-1802116369 www.iosrjournals.org 63 | Page Validation of Cornel Brown Scale for Quality of Life Assessment in persons with Dementia in Bengali: A study from Eastern India 1 Dr Abhik Sinha, 2 Prof Debasish Sanyal, 3 Dr Sanchari Roy, 4 Prof Salil Bhattacharya Previously Assistant Professor ,Community Medicine R.G Kar Medical College Kolkata-04 Presently Scientist , ICMR –NICED Beliaghata ,Kolkata -10 Professor ,Department of Psychiatry KPC Medical College Jadavpur ,Kolkata -32 Previously RMO cum Clinical Tutor Department of Psychiatry ,RG Kar Medical College Presently Assistant Professor , Department of Psychiatry Calcutta National Medical College Kolkata -14 Professor ,Department of Community Medicine Medical College Kolkata -73 Corresponding Author: Prof Debasish Sanyal Abstract: Dementia is an umbrella term used to describe a range of progressive neurological disorders, that is, conditions affecting the brain . Dementia has substantial influence on the quality of life of the patients with dementia . Proper assessment of quality of life in these persons with dementia is important . Cornel Brown scale of dementia is widely used scale for assessment of quality of life in persons with dementia . Thus Bengali validation of this scale in Bengali is also very important for the persons with dementia who can understand only Bengali but not English . In this study the present study was planned with the following objectives of to validate the English version of Cornel Brown Scale in Bengali and to establish the reliability of the Bengali version of the Cornel Brown scale . The study was carried out at the Dementia Clinic , Department of Psychiatry , RG Kar Medical College . The scale to be validated into Bengali, the Cornell-Brown scale is a 19 item scale. According to the rule of validation the minimum sample size required for the validation study come to be 19 × 10 = 190 These 190 patients were selected from the Dementia Clinic ,RG Kar Medical College . A sampling frame all the patients attending the Dementia Clinic of RG Kar Medical College was prepared of which 190 patients who fulfilled the inclusion and exclusion criteria of the study were selected by simple random sampling for scale validation .Consent was obtained from all study participants. Bengali translation of Cornel Brown Scale used the sequence of steps suggested by World Health Organization . The steps were- :Establishment of a bilingual group of experts, Examination of the conceptual structure of the instrument under study by the experts, Translation,Examination of the translation by the experts, Examination of the translation by a monolingual group, Blind back translation , Examination of the blind back-translation by the experts . Data was compiled and analysed by SPSS 20.0 . In the present study the validated Cornel Brown Scale was found to be reliable and valid .The mean Kappa value was found to be 0.749 . Reliability of the validated Cornel Brown Scale measured by Cronbach Alpha was found to be 0.897 . Component Matrix revealed that 5 factors are significant . These 5 factors could explain 82 % of the variance , --------------------------------------------------------------------------------------------------------------------------------------- Date of Submission: 08-02-2019 Date of acceptance: 23-02-2019 --------------------------------------------------------------------------------------------------------------------------------------- I. Introduction Aging is a biological and sociological process wherein human beings experience and accomplish stages of biological and social maturation. Aging may be seen as a relatively objective biological process whereby one becomes older and experiences varied biological developments. Aging may also be seen as a subjective series of social processes whereby people interpret, negotiate, and make sense of biological development in relation to existing conceptualizations of what it means to be a certain age. [1] Dementia is an umbrella term used to describe a range of progressive neurological disorders, that is, conditions affecting the brain. There are many different types of dementia, of which Alzheimer’s disease is the most common. Some people may have a combination of types of dementia. Regardless of which type is diagnosed, each person will experience their dementia in their own unique way. The World Health Organization (WHO) predicts that by 2025, about 75% of the estimated 1.2 billion people aged 60 years and older will reside in developing countries. [16] It is estimated that the number of people living with dementia will almost double every 20 years to 42.3 million in 2020 and 81.1 million in 2040. [2]