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Table 3 Improvement of symptoms as measured by the SIGH-SAD, HAMA, and BDI

From: Transcranial bright light treatment via the ear canals in seasonal affective disorder: a randomized, double-blind dose-response study

Improvement

Group 1 (n = 28)

Group 2 (n = 31)

Group 3 (n = 30)

 

%

95% CI

p-value

%

95% CI

p-value

%

95% CI

p-value

SIGH-SAD

47.4

34.9-60.0

0.0001

45.9

36.0-55.7

0.0001

43.7

32.7-54.8

0.0001

HAMA

49.9

34.7-65.2

0.0137

49.5

38.5-60.5

0.0056

46.5

35.9-57.2

0.0001

BDI

67.3

53.0-81.6

0.0158

67.4

55.5-79.4

0.1282

63.2

49.9-76.6

0.0013