Departmental Bulletin Paper Lao language version of the Revised Hasegawa’s Dementia Scale

Kounnavong, Sengchanh  ,  Soundavong, Khouanchay  ,  Xayavong, Syda  ,  Vongpraserth, Nialoun  ,  Bounsavath, Phongsavang  ,  Houatthongkham, Souphatsone  ,  Phoummalaysith, Bounfeng  ,  Saw, Yu Mon  ,  Yamamoto, Eiko  ,  Toba, Kenji  ,  Hamajima, Nobuyuki

79 ( 2 )  , pp.241 - 249 , 2017-05 , Nagoya University Graduate School of Medicine, School of Medicine
With the aging of society, the number of elderly with reduced cognitive function has been increasing worldwide. As a test to measure the cognitive function, the Revised Hasegawa’s Dementia Scale (HDS-R) has been used in Japan, Korea, and China. Since there was no HDS-R version for Laotians, the questionnaire and manual were developed through the cooperation of Lao and Japanese researchers. Back-translation was conducted to confirm the accuracy of the translation. The score on the 9-item HDS-R ranges 0 to 30 points, and reduced cognitive function is usually defined as a score of 20 points or lower. After receiving explanation regarding the use of the tool and practicing its implementation, 3 female doctors interviewed 30 superficially healthy volunteers aged 31 to 84 years (12 males and 18 females) who lived with his/ her family in Vientiane Capital, Lao PDR. Their score distributed from 4 to 30 points, with an average of 24.7 (standard deviation 5.4) points. Six (20.0%) participants scored 20 points or lower. The discussion before and after the pilot interviews revealed that the following changes needed to be made in accordance to the culture of Lao people; 1) order of date in Question 2, 2) words to be memorized in Questions 4 and 7, 3) objects to be memorized using pictures, not actual objects, in Question 8. Additionally, we introduced new two rules; a clear time definition for no reply (10 seconds), and repetition of questions twice for those with ear problems. The revised version of the HDS-R was thought to be an appropriate standard questionnaire for use in studies on cognitive function among Laotians.

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