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Table 5 Outcome variables raw scores, all weeks. Median (Q1, Q3)

From: The effects of bright light treatment on affective symptoms in people with dementia: a 24-week cluster randomized controlled trial

 

Week 0 (baseline)

Week 8

Week 16

Week 24

 

Control (N = 36)

Intervention

(N = 33)

Control (N = 28)

Intervention (N = 29)

Control (N = 21)

Intervention

(N = 27)

Control (N = 24)

Intervention

(N = 27)

Total (N = 225)

CSDD total

6.0 (4.0, 11.0)

11.0* (7.0, 14.0)

7.0 (4.0, 11.2)

10.0* (7.0, 13.0)

5.0 (1.0, 10.0)

6.0 (5.0, 9.0)

4.5 (1.8, 7.2)

8.0* (5.5, 12.5)

8.0 (4.0, 12.0)

CSDD Mood-related signs

2.0 (1.0, 3.0)

4.0* (2.0, 5.0)

2.5 (1.0, 4.0)

3.0 (2.0, 4.0)

2.0 (0.0, 4.0)

2.0 (1.0, 3.0)

2.0 (1.0, 3.0)

3.0* (2.0, 4.0)

3.0 (1.0, 4.0)

CSDD Behavioral disturbance

1.5 (0.8, 3.0)

2.0 (1.0, 4.0)

2.0 (1.0, 3.0)

3.0 (1.0, 4.0)

1.0 (0.0, 2.0)

2.0 (0.5, 3.0)

0.5 (0.0, 1.2)

3.0* (1.0, 4.0)

2.0 (1.0, 3.0)

CSDD Cyclic functions

1.0 (0.0, 2.0)

2.0 (0.0, 4.0)

2.0 (0.0, 3.0)

2.0 (1.0, 3.0)

0.0 (0.0, 2.0)

1.0 (0.0, 2.5)

1.0 (0.0, 2.0)

1.0 (0.0, 2.0)

1.0 (0.0, 2.0)

NPI-NH total

12.5 (5.8, 41.8)

24.0 (11.0, 42.0)

17.0 (5.8, 30.0)

19.0 (9.0, 34.0)

14.0 (6.0, 34.0)

13.0 (6.0, 26.2)

10.0 (5.0, 21.0)

20.0 (10.0, 28.0)

16.0 (6.0, 34.0)

NPI-NH Agitation

4.5 (0.0, 14.2)

6.0 (0.0, 12.0)

6.0 (2.0, 12.5)

4.0 (2.0, 14.0)

2.0(0.0, 14.0)

2.5 (0.2, 5.8)

4.0 (0.0, 8.0)

3.0 (1.0, 11.0)

4.0 (0.0, 12.0)

NPI-NH Affective symptoms

0.5 (0.0, 4.0)

2.0 (0.0, 10.0)

0.5 (0.0, 4.5)

1.0 (0.0, 6.0)

1.0 (0.0, 8.0)

1.0 (0.0, 4.0)

0.0 (0.0, 0.0)

2.0* (0.0, 6.0)

1.0 (0.0, 6.0)

NPI-NH Psychosis

0.0 (0.0, 8.0)

1.0 (0.0, 8.0)

0.0 (0.0, 3.0)

0.0 (0.0, 5.0)

0.0 (0.0, 4.0)

0.0 (0.0, 2.0)

0.0 (0.0, 4.0)

1.0 (0.0, 4.0)

0.0 (0.0, 6.0)

  1. * p < 0.05, Kruskal-Wallis rank sum test for the difference between the control and intervention group. Q1 25th percentile, Q3 75th percentile, CSDD The Cornell Scale for Depression in Dementia, NPI-NH The Neuropsychiatric Inventory Nursing Home Version