. Author manuscript; available in PMC: 2023 Oct 19.

Published in final edited form as: Soc Ment Health. 2023 Mar 18;13(2):97–110. doi: 10.1177/21568693231156452

Table 4.

Mediation Analysis.

	Effect	Evening		Night		Rotating		Irregular
	Effect	Coefficient	SE	Coefficient	SE	Coefficient	SE	Coefficient	SE
Short sleep weeknight	id	−.005	.01	.036^***	.01	.006	.01	.017^**	.01
	de	.154^*	.07	.078	.06	−.043	.06	.111^*	.04
	te	.149	.07	.114	.06	−.037	.06	.128^**	.05
Proportion mediated		N.S.		32%		N.S.		13%
Short sleep weekend	id	−.001	.01	.011	.01	−.000	.01	.021^**	.01
	de	.150^*	.07	.103	.06	−.037	.06	.106^*	.04
	te	.149^*	.07	.114	.06	−.037	.06	.128^**	.04
Proportion mediated		N.S.		N.S.		N.S.		17%
Insomnia symptoms	id	.003	.02	−.009	.02	.006	.02	.014	.01
	de	.146^*	.07	.123^*	.06	−.043	.06	114^**	.04
	te	.149^*	.07	.114	.06	−.037	.06	.128^**	.04
Proportion mediated		N.S.		N.S.		N.S.		N.S.
Sleep latency	id	−.002	.01	.001	.00	.000	.00	−.005^*	.00
	de	.151^*	.07	.113	.06	−.038	.06	.134^**	.04
	te	.149^*	.07	.114	.06	−.037	.06	.128^**	.04
Proportion mediated		N.S.		N.S.		N.S.		N.S.

Note. NLSY-79 Cohort, (N = 6,372). id = indirect effect; de = direct effect; te = total effect; N.S. = not significant; Proportion mediated = indirect effect (id)/total effect (te).

p < .05.

^**

p < .01.

^***

p < .001 (two-tailed tests).