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Table 3 DLMOs of the four groups on days 1 and 4

From: Effects of tryptophan-rich breakfast and light exposure during the daytime on melatonin secretion at night

Group Number of subjects DLMO*1
   Day 1 Day 4 Day 1–Day 4 (min)
Poor*Dim 8 21:53 (54) 22:12 (58) −19 (13)
Rich*Dim 6 21:30 (60) 22:36 (47) −66 (14)
Poor*Bright 7 21:23 (64) 19:57 (75) 86 (32)
Rich*Bright 7 21:38 (60) 20:07 (52) 90 (53)
  1. *1Mean time of day and SDs are shown for DLMO on days 1 and 4.