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. Author manuscript; available in PMC: 2014 Nov 3.
Published in final edited form as: Sleep Biol Rhythms. 2004 Nov 11;2(3):174–183. doi: 10.1111/j.1479-8425.2004.00139.x

Table 4.

Comparisons between phase-delayed versus phase-advanced subjects

Variable aMT6s Acrophase < Median (Advanced) aMT6s Acrophase > Median (Delayed)
aMT6s Acrophase (h) 2.45 ± 0.08 5.11 ± 0.12**
Age (years) 65.93 ± 0.58 69.07 ± 0.56**
CESD-6 1.67 ± 0.16 1.99 ± 0.18
Final Wake Time (h) 6:30 ± 0.07 7:18 ± 0.08**
Phase Angle: aMT6s Acrophase-to-Wake Time (h) 4.04 ± 0.093 2.23 ± 0.12**
AM-LIGHT (lux) 1071.34 ± 120.96 1014.12 ± 92.06
Illumination Mesor (lux) 683.46 ± 76.44 622.59 ± 95.79
Light Acrophase (h) 13.36 ± 0.07 14.04 ± 0.08*
Phase Angle: aMT6s Acrophase-to-Light Acrophase (h) 11.08 ± 0.12 8.98 ± 0.14**
**

P < 0.001 comparing advanced with delayed groups.