Table 1.

Age, Sleep, and Circadian Variables.

Full Unmatched Sample
	Women Mean (SD)	Men Mean (SD)
N	207	149
Age (y)	18.7(0.4)	18.8 (0.5)
Bedtime (clock time)	01:47 (71 mins)	01:54 (68 mins)
Wake time (clock time)*	09:12 (55 mins)	09:28 (62 mins)
Time In Bed (hours)	7.4 (1.0)	7.6 (0.9)
DLMO (clock time)*	23:25 (82 mins)	23:50 (92 mins)
Phase angle (hours)*	2.4 (1.4)	2.1 (1.3)

Matched Subset Sample
	Women Mean (SD)	Men Mean (SD)
N	83	83
Age (y)	18.7 (0.4)	18.8 (0.5)
Bedtime (clock time)	01:49 (53 mins)	01:46 (50 mins)
Wake time (clock time)	09:23 (46 mins)	09:21 (51 mins)
Time In Bed (hours)	7.6 (0.9)	7.6 (0. 8)
DLMO (clock time)*	23:21 (75 mins)	23:59 (79 mins)
Phase angle (hours)*	2.3 (1.2)	1.8 (1.1)

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