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Table 2 Expectations for Improvement in Sleep and Mood

From: Bright green light treatment of depression for older adults [ISRCTN69400161]

100 mm Visual Analog Scale, 0 = Worse 100 = Better
Measure Mood Sleep
Light Green Red Green Red
Time Initial Final Initial Final Initial Final Initial Final
N 16 16 14 14 16 16 14 14
Mean 76.3 69.6 83.4 70.1 71.7 71.8 78.9 64.1
SD 18.0 13.6 12.5 20.0 20.9 9.7 12.9 24.0