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. Author manuscript; available in PMC: 2022 Jan 3.

Published in final edited form as: Sleep Med. 2014 Sep 3;15(12):1554–1564. doi: 10.1016/j.sleep.2014.07.009

Table 2.

CS, log CL_A, and log lux for both chronotype groups (Early and Late) and both light interventions (advancing and delaying).

	Baseline			Intervention

	CS (SD)	log CL_A (SD)	log lux (SD)	CS (SD)	log CL_A (SD)	log lux (SD)
First 2 h after wake
Early Group, advancing light	0.04 (0.03)	−2.27 (1.34)	−2.24 (1.29)	0.47 (0.01)	6.52 (0.09)	4.13 (0.16)
Early Group, delaying light	0.03 (0.03)	−2.64 (1.41)	−2.65 (1.35)	0.00 (0.00)	−4.61 (0.00)	−4.61 (0.00)
Late Group, advancing light	0.08 (0.05)	−0.39 (1.92)	−0.33 (1.76)	0.49 (0.04)	6.74 (0.46)	4.56 (0.65)
Late Group, delaying light	0.10 (0.07)	0.35 (2.23)	0.47 (2.04)	0.00 (0.00)	−4.61 (0.00)	−4.61 (0.00)
Last 3 h before bed
Early Group, advancing light	0.11 (0.06)	1.58 (1.57)	1.91 (1.43)	0.00 (0.00)	−4.61 (0.00)	−4.61 (0.00)
Early Group, delaying light	0.09 (0.05)	1.56 (0.92)	1.91 (0.83)	0.46 (0.01)	6.49 (0.03)	4.12 (0.22)
Late Group, advancing light	0.08 (0.05)	0.88 (1.53)	1.36 (1.39)	0.00 (0.00)	−4.61 (0.00)	−4.61 (0.00)
Late Group, delaying light	0.09 (0.05)	1.14 (1.09)	1.57 (1.06)	0.47 (0.01)	6.51 (0.08)	4.24 (0.29)