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Table 2 Overall cognitive impairment at discharge, 3, 6 and 12 months for MMSE versus neuropsychological test battery

From: Cognitive screening among acute respiratory failure survivors: a cross-sectional evaluation of the Mini-Mental State Examination

  Sensitivity Specificity Positive predictive value Negative predictive value Kappa (SD) Overall agreement (%)
  % (95% CI) % (95% CI) % (95% CI) % (95% CI)   
ALTOS Data
6 Months
MMSE <24 24 (14–35) 93 (87–97) 67 (45–84) 67 (59–74) 0.19 (0.06) 67
12 Months
MMSE <24 30 (17–46) 97 (92–99) 76 (50–93) 81 (74–87) 0.34 (0.07) 80
ABC Data
Discharge
MMSE <24 37 (26–49) 100 (59–100) 100 (87–100) 13 (6–26) 0.09 (0.05) 42
3 Months
MMSE <24 22 (12–34) 100 (79–100) 100 (75–100) 25 (15–38) 0.10 (0.05) 38
12 Months
MMSE <24 19 (8–35) 100 (78–100) 100 (59–100) 33 (20–49) 0.12 (0.07) 42
  1. MMSE, mini-mental status examination; SD standard deviation.
  2. Impairment on neuropsychological test battery = any battery test ≤2 SD or 2+ tests ≤ 1.5 SD.
  3. For ALTOS study data: At 6 months: N = 181; True positives = 9%; False positives = 4%; True negatives = 58%; False negatives = 29%. At 12 months: N = 174; True positives = 7%; False positives = 2%; True negatives = 73%; False negatives = 17%.
  4. For ABC study data: At discharge: N = 78; True positives = 33%; False positives = 0%; True negatives = 9%; False negatives = 58%. At 3 months: N = 76; True positives =17%; False positives = 0%; True negatives = 21%; False negatives = 62%. At 12 months: N = 52; True positives = 13%; False positives = 0%; True negatives = 29%; False negatives = 58%.