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Table 1 Subject demographics by iris color.

From: Phase delaying the human circadian clock with a single light pulse and moderate delay of the sleep/dark episode: no influence of iris color

 

Blue Eyes

Brown Eyes

N

7

6

Male/Female

5/2

3/3

Age (mean ± SD)

25.2 ± 6.0

25.8 ± 5.4

Self-reported

 

4 Caucasian

Race or Ethnicity

7 Caucasian

1 Hispanic

1 Asian

Owl-Lark Score

52.7 ± 6.1

52.3 ± 10.5

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Journal of Circadian Rhythms

ISSN: 1740-3391