Table 3.
Changes in cognition, mood and behavior across three time points in the TG (N = 14) and CG (N = 11).
| TG | CG | |
|---|---|---|
| Mean (SD) | Mean (SD) | |
| Cognitive function | ||
| MMSE-KC | ||
| T0 | 16.36 ± 5.09 | 16.90 ± 4.91 |
| T1 | 17.64 ± 5.68 | 17.91 ± 5.09 |
| T2 | 17.14 ± 4.92 ` | 18.36 ± 5.43 |
| TMT-A (min) | ||
| T0 | 152.90 ± 63.45 | 98.67 ± 37.22 |
| T1 | 142.25 ± 43.87 | 130.14 ± 85.13 |
| T2 | 136.63 ± 59.98 | 86.33 ± 31.69 |
| DSF | ||
| T0 | 6.36 ± 2.64 | 7.40 ± 2.59 |
| T1 | 6.64 ± 2.73 | 7.30 ± 2.91 |
| T2 | 5.57 ± 2.77 | 7.50 ± 2.80 |
| DSB | ||
| T0 | 3.36 ± 2.53 | 4.30 ± 2.00 |
| T1 | 4.43 ± 2.28 | 4.70 ± 2.11 |
| T2 | 3.43 ± 2.28 | 4.60 ± 2.50 |
| Mood and behavior | ||
| CSDD-K | ||
| T0 | 8.07 ± 6.03 | 10.00 ± 6.59 |
| T1 | 5.50 ± 4.54 | 10.18 ± 7.68 |
| T2 | 5.07 ± 3.89 | 8.09 ± 5.49 |
| VAS-GV | ||
| T0 | 73.16 ± 11.03 | 74.68 ± 2.88 |
| T1 | 76.23 ± 1.36 | 75.55 ± 2.2 |
| T2 | 75.37 ± 2.61 | 75.28 ± 2.52 |
| VAS-GA | ||
| T0 | 52.94 ± 1.51 | 52.98 ± 1.64 |
| T1 | 52.20 ± 2.13 | 51.95 ± 2.62 |
| T2 | 52.75 ± 1.56 | 52.51 ± 1.95 |
| KNPI-Q(s) | ||
| T0 | 8.29 ± 6.37 | 10.91 ± 5.28 |
| T1 | 5.86 ± 5.96 | 9.18 ± 5.96 |
| T2 | 5.58 ± 5.29 | 8.27 ± 7.09 |
| Caregiver burden | ||
| ZBI-K | ||
| T0 | 30.46 ± 15.68 | 36.36 ± 17.00 |
| T1 | 26.31 ± 15.82 | 31.55 ± 18.01 |
| T2 | 21.38 ± 12.35 | 36.18 ± 17.39 |
| KNPI-Q(d) | ||
| T0 | 9.62 ± 10.40 | 12.55 ± 6.44 |
| T1 | 6.08 ± 7.84 | 12.45 ± 9.18 |
| T2 | 5.85 ± 6.53 | 10.36 ± 10.07 |
T0 baseline, T1 immediate post-treatment, T2 4 weeks after the end of the 2 weeks of light treatment, MMSE-KC MMSE in the Korean version of CERAD Packet, TMT-A trail making test-A, DSF digit span test forward, DSB digit span test backward, CSDD-K Korean version of the Cornell Scale for Depression in Dementia, VAS-GV visual analogue scale for global vigor, VAS-GA visual analogue scale for global affect, KNPI-Q(s) Korean Version of the Neuropsychiatric Inventory Questionnaire (severity), ZBI-K Korean version of Zarit Burden Interview, KNPI-Q(d) Korean Version of the Neuropsychiatric Inventory Questionnaire (distress).