How low of a mental status (SLUMS) test score is considered for dementia?

https://www.google.com/url?sa=t&source=web&rct=j&url=http://medschool.slu.edu/agingsuccessfully/pdfsurveys/slumsexam_05.pdf&ved=2ahUKEwjUnNT4xdLgAhVmUd8KHQIACmYQFjAJegQIARAB&usg=AOvVaw0QyuRYXcxWjUgggYYi4yi7&cshid=1550948738250

Really we need more info. I had no idea what this means so I looked it up.

"Scores range from 0 to 30. Scores of 27 to 30 are considered normal in a person with a high school education. Scores between 21 and 26 suggest a mild neurocognitive disorder. Scores between 0 and 20 indicate dementia"

What is the question? That is a subject matter.