Table 3 GDS Scores by Week by Light Condition and Treatment Timing: Mean (SD) N

Baseline start

21.23 (6.08) 13

21.00 (4.47) 15

18.73 (2.91) 15

19.50 (4.43) 16

18.54 (5.63) 13

17.00 (4.27) 16

19.46 (5.01) 41

19.50 (4.56) 40

End of baseline week

21.77 (5.85) 13

20.33 (4.53) 15

18.93 (3.41) 15

19.63 (4.83) 16

18.62 (5.61) 13

17.89 (5.09) 9

19.73 (5.07) 41

19.50 (4.74) 40

After wake therapy

21.67 (5.68) 9

19.43 (6.73) 14

18.00 (5.31) 12

18.00 (5.85) 13

16.60 (5.97) 10

17.14 (4.14) 7

18.61 (5.82) 31

18.41 (5.85) 34

Treatment Week 1

20.00 (5.55) 13

19.33 (7.69) 15

18.20 (4.06) 15

16.94 (3.99) 16

15.08 (8.41) 13

15.11 (5.11) 9

17.78 (6.35) 41

17.43 (5.95) 40

Treatment Week 2

20.08 (6.22) 13

18.60 (7.60) 15

16.21 (5.69) 14

14.38 (5.30) 16

14.75 (8.07) 12

12.33 (5.45) 9

17.05 (6.87) 39

15.50 (6.65) 40

Treatment Week 3

18.85 (6.50) 13

18.50 (6.44) 14

15.00 (5.41) 15

14.81 (5.97) 16

13.23 (6.66) 13

13.00 (7.05) 9

15.66 (6.45) 41

15.72 (6.61) 39

Treatment Week 4

17.38 (6.96) 13

18.67 (7.79) 15

14.07 (6.06) 15

13.81 (5.60) 16

11.77 (7.00) 13

12.22 (6.53) 9

14.39 (6.88) 41

15.28 (7.07) 40

Two-Week follow-up

16.25 (7.96) 12

16.00 (7.72) 11

13.69 (5.41) 13

11.85 (5.80) 14

11.80 (6.66) 10

12.13 (8.41) 8

14.03 (6.77) 35

13.30 (7.18) 33

Four-Week follow-up

17.25 (6.54) 8

14.00 (9.03) 9

12.77 (5.69) 13

13.08 (5.27) 13

13.55 (6.25) 11

10.25 (8.40) 8

14.16 (6.18) 32

12.60 (7.29) 30

3-Month follow-up

14.00 (9.47) 8

18.14 (9.58) 7

15.91 (5.26) 11

11.21 (5.74) 14

16.29 (6.97) 7

11.60 (9.63) 5

15.42 (6.99) 26

13.15 (7.97) 26