Table 1. Mean and standard deviation (between brackets) for demographic data according to chronotype group.

Group characteristics	Chronotype Groups		p values
	Morning-type	Evening-type
Sample size	13	14
rMEQ	17.85 (0.28)	9.64 (0.27)	0.01
Age	19.23 (0.55)	18.71 (0.53)	0.5
Sleep duration before morning session (in hours)	6.21 (0.21)	5.96 (0.20)	0.4
Sleep duration before evening session (in hours)	7.54 (0.41)	7.68 (0.39)	0.8
Hours awake in morning session	1.41 (0.16)	1.43 (0.16)	0.9
Hours awake in evening session	11.88 (0.41)	10.71 (0.40)	0.05
Sleep onset before morning session (hh:mm)	00∶25 (0.27)	00∶22 (0.23)	0.9
Sleep onset before evening session (hh:mm)	1∶05 (0.45)	2∶08 (0.46)	0.13
Sleep offset before morning session (hh:mm)	6∶36 (0.19)	6∶43 (0.19)	0.7
Sleep offset before evening session (hh:mm)	8∶37 (1.22)	9∶30 (0.42)	0.16
Smokers	1	2
Consumption of coffee/tea	3	3
ARCES	29.18 (2.13)	34.14 (1.89)	0.1
MAAS	4 (0.21)	4 (0.21)	0.9