Cognitive Change Questionnaire as a method for cognitive impairment screening

Abstract

The Cognitive Change Questionnaire (CCQ) was created as an effective measure of cognitive change that is easy to use and suitable for application in Brazil.ObjectiveTo evaluate whether the CCQ can accurately distinguish normal subjects from individuals with Mild Cognitive Impairment (MCI) and/or early stage dementia and to develop a briefer questionnaire, based on the original 22-item CCQ (CCQ22), that contains fewer questions.MethodsA total of 123 individuals were evaluated: 42 healthy controls, 40 patients with MCI and 41 with mild dementia. The evaluation was performed using cognitive tests based on individual performance and on questionnaires administered to informants. The CCQ22 was created based on a selection of questions that experts deemed useful in screening for early stage dementia.ResultsThe CCQ22 showed good accuracy for distinguishing between the groups. Statistical models selected the eight questions with the greatest power to discriminate between the groups. The AUC ROC corresponding to the final version of the 8-item CCQ (CCQ8), demonstrated good accuracy in differentiating between groups, good correlation with the final diagnosis (r=0.861) and adequate internal consistency (Cronbach's α=0.876).ConclusionThe CCQ8 can be used to accurately differentiate between normal subjects and individuals with cognitive impairment, constituting a brief and appropriate instrument for cognitive screening.

Cognitive and mental health changes and their vulnerability factors related to COVID-19 lockdown in Italy

“…An ad-hoc 10-item questionnaire was created to assess the subjective global cognitive functioning in performing everyday tasks, identified as feasible activities in a home confinement condition. Items were derived from standardized tools used in clinical practice to assess subjective cognitive complaints: namely, the Perceived Deficits Questionnaire [ 22 ] and the Cognitive Change Questionnaire [ 23 ], both scales having an adequate reliability with a Cronbach’s alpha of .87 and .94, respectively. Our 10-item questionnaire aimed to assess perceived cognitive problems (by capturing subtle difficulties in performing daily activities, which are related to possible cognitive changes.…”

Impact of COVID-19-lockdown and vulnerability factors on cognitive functioning and mental health in Italian population

“…An ad-hoc 10-item questionnaire was created to assess the subjective global cognitive functioning in performing everyday tasks, identified as feasible activities in a home confinement condition. Items were derived from standardized tools used in clinical practice to assess subjective cognitive complaints: namely, the Perceived Deficits Questionnaire [19] and the Cognitive Change Questionnaire [20]. Our 10-item questionnaire aims to assess perceived cognitive problems (e.g.…”

Evaluation of Available Cognitive Tools Used to Measure Mild Cognitive Decline: A Scoping Review

“…The majority of studies were conducted in Asian countries (n = 17) [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41], followed by European countries (n = 13) [42][43][44][45][46][47][48][49][50][51][52][53][54] and the Unites States (n = 7) [55][56][57][58][59][60][61]. The remaining studies came from Brazil (n = 3) [62][63][64], Australia (n = 2) [65,66], Greece (n = 2) [67,68], Argentina (n = 1) [69], unclear origin (n = 2) [70,71], Cuba (n = 1) [72] and Turkey (n = 1) [73]. In terms of study design, most included articles were cross-sectional (n = 3...…”

“…The remaining studies came from Brazil (n = 3) [62][63][64], Australia (n = 2) [65,66], Greece (n = 2) [67,68], Argentina (n = 1) [69], unclear origin (n = 2) [70,71], Cuba (n = 1) [72] and Turkey (n = 1) [73]. In terms of study design, most included articles were cross-sectional (n = 33) [25][26][27][28][29]31,32,34,35,[37][38][39][40][41][42][43][44][45][46][47]49,53,54,63,[65][66][67][68][69][70][71][72][73] and cohort studies (n = 14) [30,33,36,48,[50]…”