#Mental status clock test registration

A chi square test, which investigates the distribution of categorical variables, was reported at 234.4 for NCD of the Alzheimer’s type and 118.3 for other NCD dementias, further highlighting its particular ability to detect NCD of the Alzheimer’s type. Research by Doerflinger (2007) found the Mini-Cog to have a sensitivity in detecting cognitive impairment ranging from 0.76 to 0.99, and specificity ranging from 0.89 to 0.93 at the 95% confidence interval. Costa, Severo, Fraga, and Barros (2012) had somewhat different results in their sample of 609 community dwelling Portuguese adults aged 60 years and over where they found that an MMSE cutoff score of 25 (6.2%) was considered impaired, whereas the Mini-Cog (at a cutoff score of 3) detected impairment in 11.3% of the sample. The Mini-Cog was also found to be better at recognizing persons with neurocognitive disorders (NCD) of the Alzheimer type as opposed to other types such as Lewy body or vascular type. A subsequent study, also by its creators, found that the Mini-Cog fared slightly better than the MMSE in accurately classifying impaired individuals at 83% for the Mini-Cog and 81% for the MMSE. Scores for both the Mini-Cog and MMSE were found to be comparable with that achieved using conventional neuropsychological batteries (0.75 sensitivity and 0.90 specificity) as well (Borson et al., 2003). Research by the screen’s creators found that when scores of those with “possible cognitive impairment” or “probably normal” were compared to the Mini Mental State Exam’s (MMSE) cutoff score of 25, both batteries had similar sensitivity (0.76 vs 0.79) and specificity of 0.89 vs 0.88 (Borson, Scanlon, Chen, & Ganguli, 2003). The subject is then scored on his or her ability to complete each task where scores of 0, 1, or 2 denote probable impairment and 3, 4, or 5 indicate impairment is less likely. During administration, the client is first asked to repeat three unrelated words, such as penny, apple, and chair, then he or she is asked to draw a clock with two hands denoting a specific time. The Mini-Cog can be completed in less than 5 minutes (less than 3-minutes in certain populations) thus, it can be effective in identifying those who require further investigation into their clinical presentation in fast paced settings such as emergency rooms or other settings that are time dependent (Thompson, 2008).

#Mental status clock test registration

The Mini-Cog is a quick screen for cognitive impairment that comprises two parts: a three-word registration and recall where the person is told three words that they must recall at a later time (0 to 2 points) and a clock-drawing task (0 or 2 points). C HAPTER 26: M INI-C OG E XAM/C LOCK D RAWING T EST (CDT)