Table 1.

Characteristics of trial participants.

	Placebo first (n = 13)	Melatonin first (n = 12)
Age (years)	28 [24–56]	27 [24–56]
Sex (male:female)	4:9	4:8
BMI (kg m-2)	24.3 [18.1–30.0]	23.0 [19.3–27.3]
CSM score	31 [20–44]	42 [23–50]
Weeks between treatment arms	6.7 [3.6–14.4]	7.7 [3.9–13.0]

Data are median [full range].

BMI, body mass index; CSM, composite scale of morningness.