|
Instrument (range)
|
Condition
|
N
|
Day1 (SD)
|
Day 8 (SD)
|
Day 15 (SD)
|
Effect Size d
|
% Decrease
|
Responder N (in %)
|
|---|
|
SIGH-SAD (0-75)
|
BLT
|
22
|
15.5 (2.4)
|
7.7 (5.1)
|
7.0 (6.5)
|
1.7
|
54.8
|
13 (59)
|
| |
BLUE
|
26
|
16.3 (2.6)
|
9.1 (5.6)
|
8.1 (5.6)
|
1.9
|
50.7
|
16 (61.5)
|
|
HRSD (0-52)
|
BLT
|
22
|
6.5 (2.2)
|
3.0 (2.3)
|
3.0 (4.0)
|
1.1
|
53.8
|
13 (59)
|
| |
BLUE
|
26
|
6.5 (2.5)
|
3.8 (2.8)
|
3.2 (2.8)
|
1.2
|
50.7
|
17 (65)
|
|
ATYP (0-23)
|
BLT
|
22
|
9.0 (2.7)
|
4.7 (3.5)
|
4.0 (3.9)
|
1.5
|
55.6
|
15 (68)
|
| |
BLUE
|
26
|
9.8 (2.5)
|
5.3 (3.5)
|
4.9 (3.7)
|
1.6
|
50.0
|
14 (54)
|
|
BDI-II (0-63)
|
BLT
|
22
|
15.0 (4.3)
|
9.1 (5.1)
|
7.5 (5.8)
|
1.5
|
50.0
|
11 (50)
|
| |
BLUE
|
26
|
13.9 (4.8)
|
9.4 (5.7)
|
9.7 (7.5)
|
0.7
|
30.2
|
9 (35)
|
|
SFQ (4-28)
|
BLT
|
22
|
18.7 (3.3)
|
15.7 (3.9)
|
15.5 (3.5)
|
0.9
|
24.1
|
4 (18.1)
|
| |
BLUE
|
26
|
18.2 (3.4)
|
15.1 (3.5)
|
15.5 (4.1)
|
0.7
|
21.5
|
5 (19.2)
|
- Cohen’s d effect size and response percentage from day 1 to day 15, as rated by the scale adapted for seasonal symptoms SIGH-SAD (24 items), the Hamilton Rating Scale for depression (HRSD, 17 items), and the atypical symptoms ATYP (7 items), the score on the Beck Depression Inventory-II (BDI-II) and the Short Fatigue Questionnaire (SFQ) for each condition. BLT = bright white light treatment; BLUE = narrow-band blue-light treatment. Responder = subject with an improvement of at least 50 %
