Table 2 Concurrent validity of the Time and Change (T&C) test in a sample of elderly hospital patients.
From: Validating the Time and Change test to screen for dementia in elderly Koreans
Reference standard* | Total | |||
|---|---|---|---|---|
Dementia | No dementia | |||
T&C | + | 27 | 2 | 29 |
assessment | - | 10 | 20 | 30 |
Total | 37 | 22 | 59 | |
Sensitivity = 27/37 (73.0%) (CI = 61.6–84.3%) | ||||
Specificity = 20/22 (90.9%) (CI = 83.6–98.2%) | ||||
Positive predictive value = 27/29 (93.1%) (CI = 86.6–99.6%) | ||||
Negative predictive value = 20/30 (66.7%) (CI = 54.6–78.7%) | ||||
Accuracy = 47/59 (79.7%) | ||||