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Table 2 Depression and anxiety scale scores 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

Measure Group 1 (n = 28) Group 2 (n = 31) Group 3 (n = 30)
  Mean 95% CI Mean 95% CI Mean 95% CI
SIGH-SAD       
  Week 0 36.6 34.1-39.0 36.1 33.7-38.5 35.7 33.5-37.8
  Week 4 19.0 14.4-23.6 19.1 15.5-22.7 19.8 15.6-23.9
HAMD       
  Week 0 21.8 20.2-23.5 21.5 19.5-23.5 21.1 19.6-22.6
  Week 4 11.3 8.5-14.1 11.1 9.0-13.1 11.5 8.9-14.0
Atypical score       
  Week 0 14.8 13.1-16.4 14.5 13.2-15.9 14.6 13.2-16.0
  Week 4 7.7 5.3-10.1 8.0 6.2-9.9 8.3 6.3-10.3
HAMA       
  Week 0 23.6 21.3-26.0 22.6 20.2-25.1 22.1 19.9-24.2
  Week 4 11.6 8.2-14.9 11.2 8.7-13.7 12.0 9.1-14.8
BDI       
  Week 0 20.6 17.5-23.7 18.9 15.8-22.1 19.3 15.8-22.9
  Week 4 6.9 3.6-10.1 5.5 3.2-7.9 7.4 4.4-10.4