. Author manuscript; available in PMC: 2020 Feb 1.

Published in final edited form as: J Occup Health Psychol. 2018 May 28;24(1):180–197. doi: 10.1037/ocp0000122

Table 3.

Descriptives and Correlations of Study Variables

	M	SD	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20
1. Treatment	0.51	0.50	–
2. 6m Control over work schedule	3.76	0.67	0.09^*	–
3. 6m Family-Supportive Supervisor Behaviors	3.86	0.77	0.06	0.40^*	–
4. 12m Work-to-Family Conflict	2.93	0.91	−0.04	−0.43^*	−0.28^*	–
5. 12m Family Time Adequacy	3.43	0.68	0.00	0.31^*	0.19^*	−0.46^*	–
6. Baseline Actigraphic Total Sleep Time	435.10	53.39	−0.08^*	0.01	0.00	−0.04	0.02	–
7. 6m Actigraphic Total Sleep Time	442.31	53.12	0.02	0.06	0.03	−0.14^*	0.08	0.68^*	–
8. 12m Actigraphic Total Sleep Time	437.89	52.13	0.02	0.00	−0.04	−0.03	0.06	0.66^*	0.67^*	–
9. 18m Actigraphic Total Sleep Time	443.97	55.32	0.03	0.05	0.03	−0.15^*	0.11^*	0.64^*	0.72	0.74^*	–
10. Baseline Actigraphic WASO	43.93	16.26	0.01	−0.01	−0.07	0.01	0.04	0.11^*	−0.04	0.01	−0.01	–
11. 6m Actigraphic WASO	46.70	19.30	−0.02	−0.02	−0.11^*	−0.01	0.02	−0.04	0.12^*	0.02	−0.02	0.68	–
12. 12m Actigraphic WASO	41.45	14.75	0.05	0.00	−0.09	0.00	0.02	−0.02	−0.06	0.13^*	−0.03	0.70^*	0.67^*	–
13. 18m Actigraphic WASO	46.08	16.18	0.06	0.05	−0.07	−0.06	0.03	−0.02	0.01	0.04	0.14^*	0.61^*	0.63^*	0.66	–
14. Baseline Insufficiency	2.85	0.87	0.06	−0.15^*	−0.13^*	0.24^*	−0.18^*	−0.09^*	−0.06	−0.01	−0.05	−0.03	−0.02	−0.03	0.02	–
15. 6m Insufficiency	2.73	0.95	−0.02	−0.16^*	0.13^*	−0.24^*	−0.19^*	−0.04	−0.04	0.03	−0.07	−0.01	−0.02	0.02	0.00	0.55^*	–
16. 12m Insufficiency	2.72	0.92	−0.10^*	−0.16^*	−0.12^*	0.30^*	−0.23^*	0.05	0.02	0.04	−0.08	−0.01	0.02	−0.02	0.00	0.53^*	0.56^*	–
17. 18m Insufficiency	2.65	0.92	−0.07	−0.21^*	−0.25^*	0.28^*	−0.20^*	0.01	−0.05	−0.03	−0.11^*	0.02	−0.06	0.00	0.02	0.56^*	0.51^*	0.59^*	–
18. Baseline Insomnia	2.70	0.78	0.02	−0.05	−0.11^*	0.08	−0.06	0.13^*	0.11	0.15^*	0.09	0.12^*	0.15^*	0.14^*	0.13^*	0.25^*	0.26^*	0.24^*	0.22^*	–
19. 6m Insomnia	2.68	0.77	0.04	−0.03	−0.12^*	0.03	−0.06	0.14^*	0.16^*	0.13^*	0.09	0.19^*	0.21^*	0.15^*	0.15^*	0.16^*	0.22^*	0.28^*	0.22^*	0.57^*	–
20. 12m Insomnia	2.68	0.76	−0.04	−0.06	−0.11^*	0.09	−0.04	0.15^*	0.19	0.17^*	0.15^*	0.06	0.10^*	0.06	0.06	0.16^*	0.25^*	0.32^*	0.28^*	0.55^*	0.65^*	–
21. 18m Insomnia	2.70	0.72	0.06	−0.01	−0.15^*	0.10	−0.09	0.16^*	0.12	0.10	0.12^*	0.08	0.07	0.04	0.07	0.17^*	0.18^*	0.23^*	0.30^*	0.48^*	0.59^*	0.61^*

Note. N = 396-618. 6m = 6-months; 12m = 12-months; 18m = 18-months; WASO = wake after sleep onset.

Treatment: 1 = intervention, 0 = usual practice.

p < .05.