Table 2.
Performance on measures of delirium and neuropsychological tests.a
| Delirium Ab | Delirium Bc | p d | Post-deliriume | p f | |
|---|---|---|---|---|---|
| Fasting blood glucose (mmol/L) | 5.2 (4.1, 5.9) | 5.6 (4.8, 6.5) | 0.63 | 6.0 (4.9, 7.3) | 0.14 |
| Dose of F18-FDG (MBq) | 248 (223, 252) | 221 (189, 252) | 0.53 | 243 (198, 256) | 0.07 |
| CAM positive, n (%) | 7 (100) | 6 (100) | 1.00 | 0 (0%) | 0.03* |
| CAM total scoreg (/9) | 9 (7, 9) | 8 (7, 9) | 0.63 | 1 (1, 2) | 0.03* |
| Delirium indexg (/21) | 11 (8, 14) | 10 (9, 12) | 0.63 | 3 (1, 5) | 0.03* |
| MMSEh (/30) | 12 (7, 23) | 17 (12, 22) | 0.63 | 23 (15, 27) | 0.046* |
| Charlson comorbidity indexg (/35) | 5 (4, 6) | 6 (4, 8) | 0.45 | 7 (5, 8) | 0.32 |
| APACHE IIIg (/299) | 40 (39, 46) | 36 (25, 45) | 0.53 | 22 (19, 27) | 0.03* |
| IQCODE scoreg (/5) | 3.50 (3.38, 3.75) | 3.84 (3.25, 4.95) | 0.37 | 3.31 (3.09, 4.78) | 0.72 |
| Barthel indexh (/20) | 18 (5, 20) | 19 (12, 20) | 0.73 | 16 (14, 19) | 1.00 |
| IADL indexh (/12) | 4 (2, 8) | 5 (0, 9) | 1.00 | 2 (0, 5) | 0.32 |
| WAIS-IV DST: forwardsi (/16) | 6 (4, 8) | 7 (5, 10) | 0.63 | 7 (6, 12) | 0.34 |
| WAIS-IV DST: backwardsi (/14) | 3 (1, 3) | 4 (3, 5) | 0.07 | 5 (3, 6) | 0.10 |
Data presented as median (Q1, Q3) unless otherwise stated.
Data taken during delirium from 7 participants who underwent one scan.
Data taken during delirium from 6 participants who underwent two scans.
Comparison of data taken during delirium in participants who only underwent one scan (n = 7) against those who underwent two scans (n = 6). See the “Statistical Analysis” section for methods.
Data taken after resolution of delirium.
Comparison of 6 participants during and after delirium. See the “Statistical Analysis” section for methods.
p < 0.05.
Higher scores indicate worse performance.
A maximum time of 300 s was allowed before test was ceased.
Higher scores indicate better performance.
FDG: fluorodeoxyglucose, CAM: confusion assessment method; MMSE: mini-mental state examination; APACHE III: acute physiology and chronic health evaluation III; IQCODE: informant questionnaire on cognitive decline in the elderly; IADL: instrumental activities of daily living; WAIS-IV DST: Wechsler adult intelligence scale IV digit span test.