Chronotype, binge-eating, and depression: the mediating effect of skipping breakfast

Figures & data

Table 1. Descriptive statistics for scales.

	Mean (Standard Deviation)	Actual range (possible range)	Cronbach’s alpha	Skewness	Kurtosis
Morningness- Eveningness	32.38 (7.51)	15–51 (13–55)	.87	.25	−.31
Morning affect	9.60 (2.68)	4–16 (4–16)	.77	−.02	−.61
Binge-eating	12.63 (9.13)	0–44 (0–46)	.90	.86	.23
Depression	12.43 (6.35)	0–30 (0–30)	.85	.43	−.35
Skip breakfast	1.60 (1.19)	0–3 (0–3)	-	−.14	−1.50
Skip lunch	.78 (.90)	0–3 (0–3)	-	.92	−.07
Skip dinner	.70 (.86)	0–3 (0–3)	-	1.04	.20

Notes: N = 272.

Table 2. Correlations between study variables.

Variable	Age	Morningness-eveningness	Morning Affect	Binge-eating	Depression	Breakfast	Lunch
Morningness-Eveningness	.42***	-
Morning affect	.27***	.72***	-
Binge-eating	−.02	−.098	−.23***	-
Depression	−.19**	−.29***	−.38***	.29***	-
Skipping Breakfast	−.09	−.33***	−.27***	.18**	.16**	-
Skipping Lunch	.05	−.04	−.08	.06	.17**	.33***	-
Skipping Dinner	.01	.07	.001	−.03	.19**	.07	.17**

Notes: N = 272. *p ≤ 0.05; **p ≤ 0.01; ***p ≤ 0.001.

Figure 1. Mediation model with morningness-eveningness as predictor, breakfast skipping as mediator, and binge-eating as the outcome variable.

Notes: Values represent unstandardized regression coefficients. **p ≤ 0.01; ***p ≤ 0.001.

Figure 2. Serial mediation model with morningness-eveningness as predictor, breakfast skipping and binge-eating as mediators, and depression as the outcome variable.

Notes: Indirect effect = −.0122 (95% CI = −.0278/-.0038). The values represent unstandardized regression coefficients. **p ≤ 0.01; ***p ≤ 0.001.

Data availability statement

The study data is available from the corresponding author.