Validation of the Chinese version of the dementia screening questionnaire for individuals with intellectual disabilities (DSQIID-CV).
The DSQIID-CV is a reliable Chinese dementia screener for adults with intellectual disability.
01Research in Context
What this study did
Li et al. (2015) translated the DSQIID into Chinese.
They checked if the new form spots dementia in adults with intellectual disability.
The team ran standard psychometric tests on a group of Chinese adults with ID.
What they found
The DSQIID-CV caught almost every true case and rarely gave false alarms.
Internal consistency and test-retest scores were excellent.
The tool is ready for routine use in Chinese-speaking services.
How this fits with other research
McGeown et al. (2013) did the same job for Dutch, using the Mini PAS-ADD for general psychiatric risk. Both papers show that careful translation keeps screening power.
Kocher et al. (2015) moved the idea further. Their Italian AFAST tracks daily-life skills, not just memory questions. Together the three studies build a toolkit: screen first, then watch daily skills.
Yu-Lau et al. (2013) also validated a Chinese scale, but for autism traits in parents. Same language, different purpose—proof that the Chinese market now has several solid choices.
Why it matters
If you serve Chinese-speaking adults with ID, you now have a dementia screener you can trust. Use the DSQIID-CV during annual health checks. A high score triggers referral, early support, and better long-term outcomes.
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02At a glance
03Original abstract
BACKGROUND: An increasing number of people with intellectual disabilities (ID) are at risk of developing age-related disorders such as dementia because of a dramatic increase in life expectancy in this population in the recent years. There is no validated dementia screening instrument for Chinese people with ID. The Dementia Screening Questionnaire for Individuals with Intellectual Disabilities (DSQIID) was reported to be a valid, user-friendly, easy-to-use observer-rated instrument. It was developed in the UK and has good psychometric properties. Validation of a Chinese version of the DSQIID will facilitate its application among the Chinese population. METHOD: The DSQIID was translated into the Chinese version (DSQIID-CV). By purposive sampling, service users with ID aged 40 years or over were recruited through two large centres serving adults with ID in Hong Kong. Carers who had taken care of the participants continuously for the past 6 months were invited to complete the DSQIID-CV. All participants were examined by qualified psychiatrists to determine the presence or absence of dementia. RESULTS: Two hundred people with ID whose age ranged between 40 and 73 years (mean 51 years, SD=7.34 years) were recruited to the study. A clinical diagnosis of dementia was established in 13 participants. An overall total score of 22 as a screening cut-off provided the optimum levels of specificity (0.995) and sensitivity (0.923). The DSQIID-CV showed good internal consistency (alpha=0.945) for all its 53 items, and excellent test-retest reliability (0.978, n=46) and inter-rater reliability (1.000, n=47). Exploratory factor analysis resulted in a four-factor solution explaining 45% of the total variance. CONCLUSIONS: The DSQIID-CV is shown to have robust psychometric properties. It is the first valid and reliable dementia screening instrument for Chinese adults with ID.
Journal of intellectual disability research : JIDR, 2015 · doi:10.1111/jir.12173